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January 2007
S M T W T F S
     
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<div><a href="http://share.skype.com/in/26/241411" target="_blank"><img src=" http://share.skype.com/show/flash/?id=26" border="0" alt="Share Skype" id="skype-banner-img" width="120" height="60" /></a></div> Call me!

podsafe music network

Carpe Noctem - Seize the Night!



Image courtesy of Sal Viviano of Washington, Michigan (featured on the Space Weather site Jan.11, 07)

An amateur's reflection of the AAS conference.....(Mira B news was fun!)

When I Heard the Learn'd Astronomer

When I heard the learn'd astronomer,
When the proofs, the figures, were ranged in columns before me,
When I was shown the charts and diagrams, to add, divide, and measure them,
When I sitting heard the astronomer where he lectured with much applause in the lecture-room,
How soon unaccountable I became tired, and sick,
Till rising and gliding out I wander'd off by myself,
In the mystical moist night-air, and from time to time,
Look'd up in perfect silence at the stars.

Walt Whitman, 1865 (TOAOAL-II, PP 821-822)

Listener Feedback

Lots of great email out there with folk sharing their new astronomical acquisitions. This is a familiar scene:


Congratulations Dan!

I had my own great surprise! Can you guess what it is? (click on the picture for the answer) Many thanks to the entire Harris Family!



Observing Lists

Ben 34, NGC 1904, M79...a rose by any other name....listed in order of creator's birth...

Abbe Nicholas Louis de la Caille (Lac), French deacon and astronomer (1713-1762) This catalog was compiled during his 2-year journey to the Cape of Good Hope in 1751-52, "Catalog of Nebulae of the Southern Sky"(list)

Charles Messier (M), French astronomer (1730 - 1817) Between 1758 to 1782 compiled a list of 'non-comet' items. The SEDS (Students for the Exploration and Development of Space) site is one of the best resources for Messier Objects. (list. Messier compiled his list of deep sky objects in three parts; "Memoires de l'Academie" 1774, "Connoissance des Temps" 1780, and "Connoissance des Temps" 1781.

Pierre Francois Andre Mechain , French astronomer (1744-1804) co-worker with Charles Messier at at the small observatory at Hotel de Cluny in Paris. Mechain contributed many object to the 'Messier' catalogue and has may other objects an comets to his credit. (list)

Wilhelm (William) Herschel (H) , (1738-1822) was a German-born British astronomer and composer who became famous for discovering the planet Uranus. Herschel published "Catalogue of One Thousand new Nebulae and Clusters of Stars" in 1786 and "Catalogue of a second Thousand of new Nebulae and Clusters of Stars; with a few introductory Remarks on the Construction of the Heavens" in 1789 500 more objects were added to complete the 2500 Herschel Objects (list)the Astronomical League has an award for observing 400 of the Herschel Objects.

Johann Elert Bode, German astronomer (1747-1826) Bode was the director of the Berlin Observatory, where he published the Uranographia in 1801 that combined the artistic with the scientific. All amateurs should appreciate that he published a small atlas for amateurs called "Vorstellung der Gestirne" which looked at constellations and their mythologies. "Complete Catalog of Nebulous Stars and Star Clusters", Astronomisches Jahrbuch for 1779, Berlin (1977) (list)

Caroline Herschel (CH), German born English astronomer (1750-1848) was an avid astronomical observer, discoverer of comets (she originally found 8 of them) and deepsky objects (list) collected from 1783-87 which are included in William Herschel's catalogue.

John Herschel (h), (1792-1871 son of William Herschel) English born In 1833 Herschel traveled to South Africa in order to catalogue the stars, nebulae, and other objects of the southern skies. This was to be a completion as well as extension of the survey of the northern heavens undertaken initially by his father.

James Dunlop (Dunlop), Scottish born Australian Astronomer (1793-1848), James Dunlop's Catalog of southern Deep Sky Objects, compiled 1823-27 "A Catalogue of Nebulae and Clusters of Stars in the Southern Hemisphere observed in New South Wales" (list)

the SEDS site has a highlight list

John Louis Emile Dreyer (NGC, IC), (1852-1926) was a Danish-Irish astronomer. He worked with Lord Rosse at Birr where the giant six-foot Leviathan, at that time the largest telescope in the world, was at his disposal. His major contribution was the monumental "New General Catalogue of Nebulae and Clusters of Stars" (NGC), whose catalogue numbers are still in wide use today, as well as two supplementary Index Catalogues (IC); "Index Catalogue of Nebulae Found in the Years 1888 to 1894". (list)

Jack Bennett (Ben), (1914-1990) South African astronomer drew up two lists of southern objects that appeared comet-like in his telescope. His first list (Bennett, 1969) was published four months before he discovered his first comet. The supplementary list (Bennett, 1974) was followed three months later by his second discovery. Bennett's list reads like the "Who's Who of the Deepsky" and provides Southern observers will an extension to more northern lists. (list)

Sir Patrick Moore and the Editors of Sky & Telescope created "The Caldwell Catalog: 109 Deep-Sky Delights for Backyard Observers" The Royal Astronomical Society of Canada (RASC) has published several useful observing lists in their yearly Observer's Handbook, edited by Roy L. Bishop:
The Astronomical League has provided extra observing tours beyond the Messier objects for binocular observers, each one for Northern and Southern Deep Sky Objects
The Hawaiian Astronomical Society keeps a list of lists, so to speak.
Astronomical Society of South Africa has a nice set of 100 deep sky objects
...plus many more.

Sun

sunspots

Planets

Evening Planets
  • Mercury - Mag -1.1 in Sagittarius lost in the glare heading for the night time sky.
  • Venus - Mag -3.8 in Capricorn sitting low on the horizon at sunset - spectacular!
  • Neptune - Mag +8.0 in Capricorn less than 1 degree north of the +4.3 magnitude star Iota Capricorni
  • Uranus - Mag +5.9 in Aquarius Uranus under 1 degree east of Lambda Aquarii.
  • Saturn - Mag +0.2 on the western edge of Leo just west of Regulus. An easy catch and now rising earlier in the evening!


Morning Planets
  • Jupiter - Mag -1.7 in Ophiuchus visible on the ESE horizon an hour before sunrise.
  • Mars - Mag 1.5 in Sagittarius just above the Sun's glare but visible between Jupiter and the horizon.

Constellations

Lepus - the Hare - one of the animals presumed to be hunted by Orion it is more likely that the poor hare was just startled from his burrow by the great hunter charging Taurus the bull.
Invented/listed by: Ptolemy
Deep Sky objects:NGC 2017 open cluster binoculars and small telescopes reveal five stars building a multiple star system
NGC 1904 (M79) globular cluster (7.7 mag)is quite compact and a good object for small telescopes
IC 418 "Raspberry Nebula" planetary nebula (9.3 mag) between Rigel and alpha Leporis, looks likes a 9th mag "star"
Double stars: gamma Lep is a duo of a yellow and a red star with 4th mag and 6th mag, respectively. Its an attractive pair for binoculars.
Herschel 3752 is a nice triple star visible in small telescopes same field of view as M79
Variable stars: R Lep is a long-period variable of a deep red color. It is also known as Hind's Crimson Star is described as a drop of blood on a black surface. The brightness varies from 6th mag to 10th mag about every 430 days.



Taki's Star Atlas chart #104

Puppis - the Poop or Stern - Puppis, the 'Poop' Deck or Stern of the Argos Puppis is actually part of Argo Navis, the ship of Jason and the Argonauts
Invented/listed by: changed by Lacaille in 1763
Deep Sky objects: M 46 bright open cluster containing about 100 moderately concentrated stars. The planetary nebula NGC 2438 lies seemingly embedded in its northeastern edge,
M 47 open cluster contains about 50 relatively bright stars moderately concentrated to the center.
M 93, Another fine open cluster with a distinct triangular or wedge shape.
NGC 2440 planetary nebula very fuzzy with no apparent central star greenish hue.
Double stars: Yellow supergiant xi Pup of 3.34 mag shows an orange companion when viewed through binoculars
Variable stars: L2 Pup is a red giant which brightness varies from 3rd to 6th magnitude roughly every 140 days
V Pup is an eclipsing binary every 35 hours the brightness goes down from 4.5 mag to 5.1 mag when the fainter star crosses the brighter one in the line of sight.



Taki's Star Atlas chart #102

Next show....


Updates!

"What's up 2007 - 365 Days of Skywatching" by Tammy Plotner and published/sponsored by Fraser Cain at the "Universe Today" website/blog/podcast.

Comets

McNaught! (finder chart)

Comets for the Month.

Check out the Sky Hound site.

Thanks!

Email us at astronomyagogo@gmail.com or leave a note in our show notes at www.astronomy.libsyn.com
Help us out by leaving a donation in the ol' PayPal hat

Pumbaa: Timon?
Timon: Yeah?
Pumbaa: Ever wonder what those sparkly dots are up there?
Timon: Pumbaa. I don't wonder; I know.
Pumbaa: Oh. What are they?
Timon: They're fireflies. Fireflies that uh... got stuck up on that big... bluish-black... thing.
Pumbaa: Oh. Gee. I always thought that they were balls of gas burning billions of miles away.
Timon: Pumbaa, wit' you, everything's gas.

Music

Douglas Spotted Eagle "Starry Night" and "Doo'lit'Saa'Da (Another Silent Night) feat. Dine' Children's Choir"

Woodland Hills Camera and Telescope is offering FREE web hosting on our servers for you or your organization's website. In order to promote the hobbies of Astronomy, Astrophotography, Photography, Birding or generally any topic that is of interest to our customer base, Woodland Hills Camera and Telescope is offering Hosting Grants.


Direct download: AAGGshow35.mp3
Category: Tips and Tricks -- posted at: 7:11 AM
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Download this month's sky map!

Kym Thalassoudis does a wonderful job creating accurate and easy to use star maps every month! Visit his site at www.skymaps.com for skymaps and links to other useful astronomical sites. Also a great portal for astronomical gifts!

Northern hemisphere sky map
Southern hemisphere sky map

Those in the Southern Hemisphere should also visit James Barclay's site for a great tour of the Southern Hemisphere December sky.

Another great site for Southern Hemisphere viewers is the Royal Astronomical Society of New Zealand's Southern Hemisphere Calendar found at the RASNZ site

Download "What's up 2007: 365 days of Skywatching" by Tammy Plotner, published by Universe Today (Faser Cain) it is a fantastic and it is free!

Planets for January 2007

Mercury will be in superior conjunction (behind the sun) on Jan 7th and not easily visible until late in the month as an evening planet. The first week of February marks it's greatest elongation and better viewing. -1.0 Mag peaking at -1.3 Mag mid-month.

Venus sits low on the SW horizon in the evening twilight. By mid month Venus is setting after twilight in full dark. An almost fully illuminated disk shines at -3.8 mag.

Mars starts off the month in Ophiuchus rising just 1.5 hours before the Sun the 1.5 mag planet competes with 1.06 variable star Antares (which means "like" Mars) and together with Jupiter they make a nice trio. By the end of the month Mars has moved into Sagitarrius.

Jupiter starts the month rising 1 hour before the sun. Jupiter, at -1.8 mag, spends the first 11 months of the year in Ophiuchus!

Saturn spends the entire year in Leo. Rising mid-evening at the beginning of the month and by the middle of the month is rising in the early evening making the 0.2 mag planet easy to share with friends.

Uranus at 5.9 mag spends the entire year in Aquarius starting the month almost on top of Lambda Aquarii but by the end of the month it is 1 deg E of Lambda.

Neptune another happy camper this 8.0 mag planet will camp out in Capricorn all year long. He starts the month out 1 deg North of Iota Capricorni. On the 25th of the month use Mercury to help you find Neptune Mercury will be less than .25 degs from Iota and much easier to see. After mid-month Neptune (mid latitudes NH) will be setting in twilight getting more difficult to see.

Key Dates for January 2007

Days and Times in UT (help with time)

Observations are for 8pm for the mid-northern latitudes and for 10pm for the mid-southern latitudes.

Great site for sunrise and sunset times and a downloadable toolbar application by Steve Edwards

Astronomical Highlights
January

3 -Full Moon 13:57 UT

-Earth at Perihelion (the closest point to the sun) 20 UT
4 -Quandrantid Meteor Shower peaks at 00:30 UT
5 -Moon passes 1 degree north of the Beehive Cluster (M44)
7 -Mercury at superior conjunction (on the far side of the Sun from us)
10 -Moon at apogee (furthest from Earth)
11 -Last quarter moon 12:45 UT

-Spica 1.1 degrees N of Moon, Check the International Occultation Timing Association (IOTA) for possible occultation from your location
14 -Venus (in the evening) and Jupiter (in the morning)start their tour as our "bookend" planets.
15 -Look for the Moon and Antares very close to each other in the pre-dawn sky.
17 -Mars 5 degree N of Moon
19 -New Moon 4:01 UT
20 -Venus .8 degrees N of Moon, Check IOTA for possible occultation from your location
20 -Uranus .4 degrees South of Moon, Check IOTA for possible occultation from your location
24 -Double shadow transit on Jupiter
25 -Moon at perigee (closest to Earth) 13h UT

-First Quarter Moon 23:01 UT
27 -Moon very near the Pleiades 17hUT. Check IOTA for possible occultation from your location
31 -Mercury 7 degrees below Venus low on the Western horizon after sunset


Southern Hemisphere Calendar can be found at the RASNZ site

Monthly Messier*

  • M33 - This is a very large (about the size of the full moon) face on spiral galaxy in the constellation Triangulum. The total light from M33 is about magnitude 5.3, but when spread out over its large area it yields a very low surface brightness. The best and easiest views of M33 can be found with a pair of binoculars. Look for a large, round hazy patch of light with little detail at first glance. M33 can be glimpsed with the naked eye in dark clear skies. Finding M33 in a telescope can be a challenge because of its size. Use the widest field eyepiece you have and look for a change in light level to identify the galaxy.
  • M103 - This is a fairly small, sparse open cluster in Cassiopeia. Look for a tight group of stars in binoculars, being careful not to mistake it for several other clusters in the same area. Through a telescope the cluster is very sparse, four bright stars amidst the slight glow of much fainter companions.
  • M52 - This rich open cluster in Cassiopeia is fairly easy to see in binoculars as a faint smudge of light. A small to mid telescope will begin to resolve this cluster. Look for a triangular patch of light with some stars clearly resolved, but most of the cluster members provide only a hint of graininess.
  • M76 - Known as the Little Dumbbell, this planetary nebula in Perseus is one of the dimmest objects in the Catalog. Look for a small, faint, oblong patch of light. Not a very obvious object, if you don't see it at first try varying magnifications in an attempt to bring it out. Fortunately M76 is located near a bright star, which aids in locating the correct field to search.
  • M34 - This is a large and bright, but sparse open cluster located in Perseus. Visible as a faint patch of light to the naked eye, it is very obvious and easy to resolve in binoculars. In fact, binoculars provide a better view of this cluster than most telescopes.
  • M74 - This galaxy in Pisces is a smaller and fainter version of M33, a face on spiral galaxy with low surface brightness. M74 is arguably the most difficult object to find in the Catalog. You will need very dark, clear skies to easily see it, anything less than perfect conditions will make M74 nearly impossible to find. Look for a very faint fuzzy star, which is the bright central condensation, surrounded by a very faint glow. Try all of your tricks on this one; star hop to the correct field, try varying magnification, tap the scope to detect the galaxy through its motion. If all of the above fail, try again another night or seek darker skies.
  • M77 - This is a small faint galaxy in Cetus. Possible to see it in binoculars, but very difficult. Look for a faint fuzzy star. Through a telescope look for a fuzzy, oval shaped patch of light, bright in the center, fading towards the edges.
*Monthly Messier information gleaned from the Royal Astronomical Society of Canada, Moncton Centre Quebec and from the Astronomy Connection website.

Historical and Current Events

...Did you know?
December

4 -Wilhelm Beer's 210th Birthday (1797)
5-10 -209th Meeting of the American Astronomical Society (AAS), Seattle, Washington
8 -Stephen Hawking's 65th Birthday (1942)

-Johannes Fabricius' 420th Birthday (1587)
9 -Asteroid 2006 XP4 Near-Earth Flyby (0.074 AU)
11 -220th Anniversary (1787), William Herschell's Discovery of Uranus Moons Titania and Oberon
12 -Sergel Pavlovich Korolev's 100th Birthday (1907)
17 -Harvey Nininger's 120th Birthday (1887)
17-20 -Deep South Texas Stargaze 2007, Escondido Ranch, Texas
19 -Johann Bode's 260th Birthday (1747)
21 -John Couch Adams' 215th Birthday (1792)
24 -Harold Babcock's 125th Birthday (1882)
26 -45th Anniversary (1962), Ranger 3 Launch
27 -40th Anniversary (1967), Apollo 1 Fire (Gus Grissom, Edward White & Roger Chaffee)
31 -Deadline to fly your name to Mars or the Moon, Planetary Society

Astronomical Highlights for 2007

Earth's major motions for 2007
Perihelion
Jan 3 20h(UT)
Equinox
Mar 21 00:07(UT)
Solstice
June 21 18:06(UT)
Aphelion
July 4 00h (UT)
Equinox
Sept 23 19:51(UT)
Solstice
Dec 22 06:08(UT)

Planet Positions for 2007

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Venus Sgr Aqr Psc Ari Tau Gem Leo Sex Cnc Leo Leo Vir
Mars Oph Sgr Cap Cap Aqr Psc Ari Tau Tau Gem Gem Gem
Jupiter Oph Oph Oph Oph Oph Oph Oph Oph Oph Oph Oph Oph
Saturn Leo Leo Leo Leo Leo Leo Leo Leo Leo Leo Leo Leo
Uranus Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu
Neptune Cap Cap Cap Cap Cap Cap Cap Cap Cap Cap Cap Cap

Eclipses for 2007

March 19 - partial solar eclipse (see map, times, and animation!): The first solar eclipse of 2007 occurs at the Moon's ascending node in Pisces and is visible from eastern Asia and parts of northern Alaska

September 11 - partial solar eclipse (see map, times, and animation): The last eclipse of 2007 is a partial solar eclipse at the Moon's descending node in southern Leo. Its visibility is confined to parts of South America, Antarctica and the South Atlantic

March 3-4 - total lunar eclipse (see map): The beginning of the umbral phase visible in the Arctic region, Africa, Europe, Asia except for extreme eastern region, most of Indonesia, western Australia, Queen Maud Land of Antarctica, extreme eastern South America, Greenland, the Indian Ocean, the South Atlantic Ocean, and the eastern North Atlantic Ocean; the end visible in Africa, Europe, western Asia, Queen Maud Land of Antarctica and Antarctic Peninsula, South America, eastern North America, Greenland, the Arctic region, the Atlantic Ocean, the western Indian Ocean, and the extreme eastern South Pacific Ocean.

August 28 - total lunar eclipse (see map): The beginning of the umbral phase visible in North America, South America except extreme east, Antarctica except for Enderby Land, New Zealand, eastern Australia, extreme northeastern Asia, the Pacific Ocean, and the western Atlantic Ocean; the end visible in New Zealand, Australia, most of Antarctica except Queen Maud Land, Indonesia, eastern Asia, western North America, the Pacific Ocean, and the southeastern Indian Ocean.

Eclipse information from: NASA Eclipse Homepage, Eclipses Online (HM Nautical Almanac Office, UK in coordination with the U.S. Naval Observatory)

Meteor Showers for 2007

As luck would have it, all the major meteor showers reach their peaks in 2007 with the Moon out of the sky. Any of these showers can produce dozens of shooting stars each dark hour leading up to dawn.

Mark your calendar to look for...
  • Lyrids on April 23rd
  • Perseids on August 13th
  • Orionids on October 21st
  • Leonids on November 18th
  • Geminids on the night of December 13-14 (Meteor enthusiasts are keenly awaiting the Geminids in 2007 because their progenitor, the defunct comet Phaethon, precedes them in a flyby of Earth on December 10th.)

Comets for January

Gary Kronk's comet and meteor pages
Skyhound Comet pages

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Music Scottish Guitar Quartet -"Romance within you"
Three Blind Mice - "Watchstar"
Friction Bailey - "Auld Lang Syne"

Direct download: AAGG_sky_tour_Jan_07.mp3
Category: Sky Tours -- posted at: 10:26 AM
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