Astronomical Mid-Point of Summer

By Glenn A. Walsh
Reporting for SpaceWatchtower

Within the next week, the astronomical mid-point of the season of Summer, in the Northern Hemisphere, will be observed. This point in time is known by the term, Cross-Quarter Day (XQ). Having no formal astronomical definition, "cross-quarter" here is defined as the moment in time precisely half-way between an adjacent equinox and solstice or adjacent solstice and equinox.
.
In this case, the moment in time is precisely half-way between the Summer Solstice (observed on June 21) and the Autumnal Equinox (which will be observed on September 22). Although the traditional cross-quarter day of Lammas (Anglo-Saxon) or Lughnasadh (Irish/Scottish) is observed each year on August 1, the actual cross-quarter day for the year 2013 occurs August 6 at 8:54 p.m. EDT (August 7, 0:54 Coordinated Universal Time).
 
Lammas / Lughnasadh Day is the least known, to the general public, of the four cross-quarter days each year. The other three, traditional, cross-quarter days have long been part of the popular culture: Groundhog Day (February 2), May Day (May 1), and Halloween Day (October 31). Likewise, due to the evolution of our calendar from ancient times, the actual cross-quarter day for each of these holidays also occurs a few days after the traditional date.

Lammas / Lughnasadh Day, in ancient times,was a festival day which marked the start of the harvest season, particularly the wheat harvest. On Lammas Day, it was customary to bring a loaf of bread, from the new crop, to church to be blessed.

Lughnasadh Day, in Irish mythology, is a festival said to have begun by the God Lugh as a funeral feast for his foster-mother, Tailtiu, a goddess said to have died of exhaustion from clearing the plains of Ireland for agriculture.

At about the same time as the mid-point of Summer is the Heliacal Rising of the Star Sirius on August 7. This is the first day, normally, that Sirius can briefly be seen on the eastern horizon just prior to sunrise (seven degrees altitude ahead of the Sun).

As Sirius is the brightest star in the nighttime sky, the ancient astronomers/astrologers believed that the rising of Sirius in the daytime sky added to the heat from the Sun, to make Summer even hotter: The Dog Days of Summer (being in the Constellation Canis Major, Sirius is nicknamed The Dog Star). Although Sirius is much hotter than our Sun, it is much too distant to provide any appreciable heat to our planet.

Special Thanks: Eric G. Canali, former Floor Manager of Pittsburgh's original Buhl Planetarium and Institute of Popular Science and Founder of the South Hills Backyard Astronomers amateur astronomy club.

Source: Glenn A. Walsh, Reporting for SpaceWatchtower, a project of Friends of the Zeiss.

More on Lammas Day: Link >>> http://en.wikipedia.org/wiki/Lammas

More on Lughnasadh Day: Link >>> http://en.wikipedia.org/wiki/Lughnassad

More on Cross-Quarter Days: Link >>> http://en.wikipedia.org/wiki/Cross-quarter_day
Also see Quarter Days (roughly coinciding with Equinoxes and Solstices):
Link >>> http://en.wikipedia.org/wiki/Quarter_day

More on The Dog Days of Summer:
Link 1 >>> http://en.wikipedia.org/wiki/Dog_days_of_summer
Link 2 >>> http://www.souledout.org/nightsky/dogdays/dogdays.html

More on the heliacal rising of a celestial object: Link >>> http://en.wikipedia.org/wiki/Heliacal_rising

More on the Star Sirius: Link >>> http://en.wikipedia.org/wiki/Sirius

Related Blog Post ---

Summer Begins Friday 1:04 a.m.; Largest Moon of 2013 Sunday  (2013 June 20):

Link >>> http://spacewatchtower.blogspot.com/2013/06/summer-begins-friday-104-am-largest.html

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

NASA: Perseid Meteor Shower Has Most Fireballs

In astronomy, there's nothing quite like a bright meteor streaking across the glittering canopy of a moonless night sky.  The unexpected flash of light adds a dash of magic to an ordinary walk under the stars.

New research by NASA has just identified the most magical nights of all.

"We have found that one meteor shower produces more fireballs than any other," explains Bill Cooke of NASA's Meteoroid Environment Office.  "It's the Perseid meteor shower, which peaks on August 12th and 13th."

A new ScienceCast video previews the 2013 Perseid meteor shower. Play it

Using a network of meteor cameras distributed across the southern USA, Cooke's team has been tracking fireball activity since 2008, and they have built up a database of hundreds of events to analyze. The data point to the Perseids as the 'fireball champion' of annual meteor showers.

A fireball is a very bright meteor, at least as bright as the planets Jupiter or Venus.  They can be seen on any given night as random meteoroids strike Earth's upper atmosphere. One fireball every few hours is not unusual.  Fireballs become more numerous, however, when Earth is passing through the debris stream of a comet.  That’s what will happen this August.

More - Link >>> http://science.nasa.gov/science-news/science-at-nasa/2013/26jul_perseids/

Source: NASA Science News

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

First Light: Great Pics of Sun w/ New NASA Space Telescope

(Image Source: Harvard-Smithsonian Center for Astrophysics/NASA)

Rebecca J. Rosen Jul 25 2013, 3:12 PM ET

Last month, NASA launched a new telescope, known as IRIS, into space to study the Sun. Today we got our first glimpse of what IRIS is seeing, and ... wow.

IRIS, the Interface Region Imaging Spectrograph, is part of NASA's "Small Explorer' program and is tasked with investigating physical conditions of the Sun. 
 

Early evidence suggests that IRIS is going to be a feast for those who love gorgeous pictures of space.
 

Even NASA's press release bubbled with excitement:

The moment when a telescope first opens its doors represents the culmination of years of work and planning -- while simultaneously laying the groundwork for a wealth of research and answers yet to come. It is a moment of excitement and perhaps even a little uncertainty. On July 17, 2013, the international team of scientists and engineers who supported and built NASA's Interface Region Imaging Spectrograph, or IRIS, all lived through that moment. As the spacecraft orbited around Earth, the door of the telescope opened to view the mysterious lowest layers of the sun's atmosphere and the results thus far are nothing short of amazing. The data is crisp and clear, showing unprecedented detail of this little-observed region.

 More - Link >>> http://www.theatlantic.com/technology/archive/2013/07/nasas-newest-space-telescope-sends-back-its-first-images-of-the-sun-and-theyre-gorgeous/278115/

NASA News Release - "NASA's IRIS Telescope Offers First Glimpse of Sun's Mysterious Atmosphere"

Link >>> http://www.nasa.gov/content/goddard/iris-telescope-first-glimpse-of-suns-mysterious-atmosphere/index.html#.UfGsaDeyK3I

More on the IRIS spacecraft and mission:
Link >>> http://en.wikipedia.org/wiki/Interface_Region_Imaging_Spectrograph 

Sources: NASA, The Atlantic Magazine.

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Mystery: Missing Waves on Saturn Moon Titan

A new ScienceCast video ponders the mystery of the missing waves on Titan. Play it

One of the most shocking discoveries of the past 10 years is how much the landscape of Saturn's moon Titan resembles Earth.  Like our own blue planet, the surface of Titan is dotted with lakes and seas; it has river channels, islands, mud, rain clouds and maybe even rainbows.

The "water" on Titan is not, however, H₂O.  With a surface temperature dipping 290 degrees F below zero, Titan is far too cold for liquid water. Instead, researchers believe the fluid that sculpts Titan is an unknown mixture of methane, ethane, and other hard-to-freeze hydrocarbons.

Yet something has been bothering Alex Hayes, a planetary scientist on the Cassini radar team at Cornell University.

If Titan is really so wet, he wonders, "Where are all the waves?"

"We know there is wind on Titan," says Hayes. "The moon's magnificent sand dunes [prove] it."

Add to that the low gravity of Titan—only 1/7^th that of Earth—which offers so little resistance to wave motion, and you have a real puzzle.

More - Link >>> http://science.nasa.gov/science-news/science-at-nasa/2013/22jul_titan/

Source: NASA Science News.

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < gawalsh@planetarium.cc >
About the Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Moon Day - A National Holiday ?

By Glenn A. Walsh
Reporting for SpaceWatchtower 

Forty-four years ago, man first landed and walked on another planetary body, the Earth's Moon. On Sunday Afternoon, 1969 July 20, at precisely 4:17:40 p.m. Eastern Daylight Saving Time (20:17:40 Coordinated Universal Time) the Lunar Excursion Module (LEM) named Eagle, with astronauts Neil Armstrong and Buzz Aldrin aboard, landed in the Moon's Sea of Tranquility, at a site from then on called Tranquility Base.

Neil Armstrong became the first human to set foot on the Moon that evening at precisely 10:56:20 p.m. Eastern Daylight Saving Time. Originally, the first steps on the Moon had been planned for the early morning hours of Monday/Moonday. However, the earlier time allowed millions of Americans to view the event, on live television, at the tail-end of Sunday evening's television prime-time viewing period. By the time scale most scientists use, Coordinated Universal Time (UTC), these first steps did occur on Monday/Moonday, 1969 July 21 at precisely 2:56:20.

Should Moon Day, July 20, be designated an official national holiday ?

James J. Mullaney thinks so. Mr. Mullaney, former Curator of Exhibits and Astronomy at Pittsburgh's original Buhl Planetarium and Institute of Popular Science and Staff Astronomer at the Allegheny Observatory, says: "If there's a Columbus Day on the calendar, there certainly should be a Moon Day!"

Mr. Mullaney has been campaigning for July 20 to be officially designated as the Moon Day national holiday for several years. J. Kelly Beatty, Senior Contributing Editor of Sky and Telescope Magazine, supports this campaign, as does Steven L.J. Russo, Director of the East Kentucky Science Center and Planetarium.

In 2003, the International Space Station Fan Club started a petition to designate July 20 as National Space Day. And, on 1999 July 20, the nation of Morocco, at a United Nations conference, proposed that July 20 be designated as International Space Day.

The last day to be designated as a federal holiday was Martin Luther King, Jr. Day, which is celebrated as one of the nation's Monday holidays near the civil rights activist's January 15 birthday (celebrated on the third Monday in January). It took many years to build-up support for such a federal holiday, with the first designation attempt in Congress not coming until 1979, eleven years after Dr. King was assassinated. Due to some political opposition, the holiday designation did not occur until 1983 November 2, when President Ronald Reagan signed the designation bill into law.

The first Martin Luther King, Jr. Day was celebrated 1986 January 20. This celebration occurred eight days before a major tragedy in space history: the explosion of the Space Shuttle Challenger, shortly after launching from Cape Canaveral with the first teacher-in-space, Christa McAuliffe, aboard.

Thus far, support for a Moon Day national holiday seems to be limited to outer space enthusiasts. As Mr. Mullaney notes, if the discovery of the "New World" in 1492 is important enough for a federal holiday, it would reason that man's first step on another world would certainly justify such a designation. So, such a designation, or similar commemoration, will probably occur some day. But, politics being what it is, it would be very difficult to predict when such a day may arrive.

The Historic Mission of Apollo 11, Man Walks on the Moon for the First Time 
A Personal Remembrance from 40 Years Ago By Glenn A. Walsh (2009 July):
Link >>> http://buhlplanetarium2.tripod.com/bio/Apolloremembrance.htm 

Source: Glenn A. Walsh, Reporting for SpaceWatchtower, a project of Friends of the Zeiss.

Related Blog Posts ---

Former Buhl Planetarium Curator Jim Mullaney To Be On National Radio (2013 June 26):

Link >>> http://spacewatchtower.blogspot.com/2013/06/former-buhl-planetarium-curator-jim.html

 

New Mullaney Book: "Celebrating the Universe!" (2013 May 18):

Link >>> http://spacewatchtower.blogspot.com/2013/05/new-mullaney-book-celebrating-universe.html

 

Mullaney Blog: Forgotten Observing Classic (2012 March 18):

Link >>> http://spacewatchtower.blogspot.com/2012/03/mullaney-blog-forgotten-observing.html

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < gawalsh@planetarium.cc >
About the Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Newest Neptune Moon an Enigma

Hubble's composite picture of blue-hued Neptune, its rings and five of its 14 known moons (Image: NASA/ESA/M. Showalter/SETI Institute)

House lawmakers debated NASA's 2014 budget today (July 18) during a meeting that saw stark partisan divisions over proposed funding cuts for the agency's science and space exploration programs.
A NASA authorization bill drafted by the Republican majority of the House Committee on Science, Space and Technology proposes to slash NASA's funding to $16.6 billion for 2014 — $300 million less than it received in 2013, and $1.1 billion less than President Obama requested for NASA in 2014. The bill would roll back NASA's funding to a level $1.2 billion less than its 2012
- See more at: http://www.space.com/22023-nasa-authorization-bill-debate.html#sthash.RAxZC4Ki.dpuf

House lawmakers debated NASA's 2014 budget today (July 18) during a meeting that saw stark partisan divisions over proposed funding cuts for the agency's science and space exploration programs.
A NASA authorization bill drafted by the Republican majority of the House Committee on Science, Space and Technology proposes to slash NASA's funding to $16.6 billion for 2014 — $300 million less than it received in 2013, and $1.1 billion less than President Obama requested for NASA in 2014. The bill would roll back NASA's funding to a level $1.2 billion less than its 2012
- See more at: http://www.space.com/22023-nasa-authorization-bill-debate.html#sthash.RAxZC4Ki.dpuf

House lawmakers debated NASA's 2014 budget today (July 18) during a meeting that saw stark partisan divisions over proposed funding cuts for the agency's science and space exploration programs.
A NASA authorization bill drafted by the Republican majority of the House Committee on Science, Space and Technology proposes to slash NASA's funding to $16.6 billion for 2014 — $300 million less than it received in 2013, and $1.1 billion less than President Obama requested for NASA in 2014. The bill would roll back NASA's funding to a level $1.2 billion less than its 2012
- See more at: http://www.space.com/22023-nasa-authorization-bill-debate.html#sthash.RAxZC4Ki.dpuf

House lawmakers debated NASA's 2014 budget today (July 18) during a meeting that saw stark partisan divisions over proposed funding cuts for the agency's science and space exploration programs.
A NASA authorization bill drafted by the Republican majority of the House Committee on Science, Space and Technology proposes to slash NASA's funding to $16.6 billion for 2014 — $300 million less than it received in 2013, and $1.1 billion less than President Obama requested for NASA in 2014. The bill would roll back NASA's funding to a level $1.2 billion less than its 2012
- See more at: http://www.space.com/22023-nasa-authorization-bill-debate.html#sthash.RAxZC4Ki.dpuf

• by Lisa Grossman

Neptune has a new moon, and its existence is an enigma. The object, known for now as S/2004 N1, is the first Neptunian moon to be found in a decade. Its diminutive size raises questions as to how it survived the chaos thought to have created the giant planet's other moons.

The faint moon was discovered in archived images from the Hubble Space Telescope. Mark Showalter of the SETI Institute in Mountain View, California, was poring over pictures of Neptune taken in 2009 to study segments of its rings.

The rings around our outermost planet are too faint to see without taking very long-exposure pictures. However, the rings orbit so fast that taking one long shot would smear them across the frame. Showalter and colleagues gathered multiple shorter-exposure images and developed a technique to digitally rewind the orbits to the same point in time. Then they could stack several images on top of each other to reveal details of the rings.

"I got nice pictures of the arcs, which was my main purpose, but I also got this little extra dot that I was not expecting to see," says Showalter.

Stacking eight to 10 images together allowed the moon to show up plain as day, he says. When he went back and repeated the process using Hubble pictures taken in 2004, the moon was still there and moving as expected.

The tiny addition to Neptune's family is an added shock because it seems too small to have survived the formation of the other moons, according to accepted theories.

More - Link >>> http://www.newscientist.com/article/dn23873-neptunes-strange-new-moon-is-first-found-in-a-decade.html#.Ueh3B9l1eSo

Source: New Scientist Magazine.

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < gawalsh@planetarium.cc >
About the Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Full Moon Benefits Hospital Heart Patients

Full Moon photograph taken 2010 Oct. 22 from Madison, Alabama, USA. Photographed with a Celestron 9.25 Schmidt-Cassegrain telescope. Acquired with a Canon EOS Rebel T1i (EOS 500D), 20 images stacked to reduce noise. 200 ISO 1/640 sec. (Image Source: Wikipedia.org )

If you need cardiac surgery in the future, aortic dissection in particular, reach for the moon. Or at least try to schedule your surgery around its cycle. According to a study at Rhode Island Hospital, acute aortic dissection (AAD) repair performed in the waning full moon appears to reduce the odds of death, and a full moon was associated with shorter length of stay (LOS).

---

The study is published online in advance of print in the journal Interactive Cardiovascular and Thoracic Surgery.

The purpose of the study was to assess the effect of natural time variations of both the season and the lunar cycle phase on hospital survival and length of stay (number of days a patient is in the hospital) following acute aortic dissection repair.

"While there has been previous research of seasonal impacts on cardiovascular disease, there has not been any data about the effect of the lunar cycles on cardiac cases, until now," said senior author Frank Sellke, M.D., chief of cardiothoracic surgery and co-director of the Cardiovascular Institute at Rhode Island, The Miriam and Newport hospitals. "We focused the study on patients having aortic dissection and found that the odds of dying following this procedure were greatly reduced during the waning full moon, and that length of stay was also reduced during the full moon."

More - Link >>> http://www.sciencedaily.com/releases/2013/07/130715141816.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fspace_time+%28ScienceDaily%3A+Space+%26+Time+News%29

Sources: American Association for the Advancement of Science (AAAS), ScienceDaily.com .

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < gawalsh@planetarium.cc >
About the Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >