Prime Focus (09-06)
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Highlights of the September Sky. -- -- -- 6th -- -- -- Dawn: Regulus 0.5º rightright of Venus. PrimePrime FocusFocus -- -- -- 7th -- -- -- A Publication of the Kalamazoo Astronomical Society Full Moon -- -- -- 8th -- -- -- Dusk: Jupiter passes less September 2006 than 1º fromfrom AlphaAlpha LibraeLibrae next 8 evenings. -- -- -- 11th -- -- -- This Months KAS Events Dusk: Jupiter 0.5º upperupper This Months Events right of Alpha Librae. th General Meeting: Friday, September 8 @ 7:00 pm -- -- -- 12 -- -- -- PM: Pleiades upper right Kalamazoo Area Math & Science Center of Moon th Board Meeting: Sunday, September 10 @ 5:00 pm -- -- -- 14 -- -- -- Last Quarter Moon Sunnyside Church - 2800 Gull Road - All Members Welcome -- -- -- 16thth -- -- -- AM: Castor left, Pollux Observing Session: Saturday, September 16 @ 7:30 pm lowerlower leftleft ofof Moon.Moon. Kalamazoo Nature Center - Uranus & Neptune -- -- -- 17th -- -- -- AM: Pollux above Moon. Field Trip: Friday, September 22 - Sunday, September 24 -- -- -- 19thth -- -- -- Great Lakes Star Gaze - River Valley RV Park - Gladwin, MI - See Page 3 Dawn: Saturn upper right, Regulus below crescent Observing Session: Saturday, September 30 @ 7:00 pm Moon. Kalamazoo Nature Center - Galaxies of Autumn -- -- -- 20thth -- -- -- Dawn: Regulus above crescent Moon. -- -- -- 22nd -- -- -- Inside the Newsletter. New Moon Inside the Newsletter. th -- -- -- 24 -- -- -- Perseid Potluck Picnic Report........................... p. 2 Dusk: Spica right, Mercury far right of crescent Moon. Observations......................................................... p. 3 -- -- -- 25thth -- -- -- Great Lakes Star Gaze Trip............................... p. 3 Dusk: Jupiter upper left of Spitzer Digs Up Solar Systems in Orion......... p. 4 crescent Moon. And Then There Were Eight............................ p. 5 -- -- -- 26thth -- -- -- Dusk: Jupiter upper right James Van Allen: U.S. Space Pioneer ............. p. 9 of crescent Moon. NASA Space Place............................................... p. 11 thth -- -- -- 27 -- -- -- September Night Sky.......................................... p. 12 Dusk: Antares upper left of crescent Moon. KAS Officers & Announcements...................... p. 13 -- -- -- 30thth -- -- -- First Quarter Moon www.kasonline.org September 2006 Page 2 PerseidPerseid PotluckPotluck PicnicPicnic The twelfth annual Perseid Potluck Picnic was held at the Kalamazoo Nature Center on Saturday, August 19, 2006. Approximately 23 members of the KAS were in attendance. Weather for the picnic included mild temperatures in the low 70’s and partly to mostly cloudy skies. Jack and Ruth Price arrived extra early to setup a rain fly, but it wasn’t needed since all the showers from earlier in the day moved out of the area. Some members arrived shortly before 6:00 pm, but most were fashionably late! Roger Williams setup his Coronado MaxScope 60 and attempted to observe some prominences and the large sunspots that were visible in mid-August. Roger and Philip Wareham did report a brief glimpse at the Sun, but it was quickly covered up by the pesky clouds. Not an empty plate can be found at the picnic table occupied by (clockwise from the left) Karen Sinclair, Mike Sinclair, Jack Price, The key word of the Perseid Potluck Picnic is indeed pot- Phyllis Lubbert, Gary Lubbert, and Beverly Byle. luck and this was once again proven by the many fantastic side dishes and deserts brought by those in attendance. I’d in the KAS. The two he mentioned was our MarsWatch list them all if I could remember who brought what dish! A event on Thursday, August 27, 2003 and the Triple Feature great deal of thanks also goes to Jim and Tim Kurtz. Jim of Mars near opposition, the Total Lunar Eclipse, and provided his propane grill for the second year-in-a-row and Comet Hale-Bopp near its best on Sunday, March 23, 1997. deserves much of the credit for preparing the hamburgers, hot dogs, and veggie burgers. Tim also helped with cook- Richard encouraged other members to share some of their ing while Jim was busy filling up his plate (and his stom- favorite KAS moments. Mike Sinclair has fond memories ach) and taking it easy! of the Annular Eclipse on May 10, 1994 and the large re- search project he coordinated with KAS members and his Once dinner was over and everyone had a chance to relax, students at KAMSC. Jean DeMott said her favorite mo- we held a special celebration in honor of the 70th anniver- ments were traveling to star parties around the country with sary of the Kalamazoo Astronomical Society. Jean DeMott fellow KAS members. made arrangements for a delicious cake to be decorated with stars and the words “70 Years of Looking Up”. Be- The public observing session scheduled right after the pic- fore cutting the cake, Richard said a few brief words and nic was officially canceled earlier in the day, but this turned shared a couple of his favorite memories of being involved out to be a HUGE mistake! The Clear Sky Clock predicted poor transparency and seeing, but this turned out not to be the case. Skies gradually got clearer right around sunset. It did cloud up again for a brief time, but eventually cleared again at about 10:20 pm with stunning transparency. Dick and Jackie Gillespie setup their 12” Dobsonian and Roger Williams brought his homemade trischiefspiegler (folded reflector) on his brand new equatorial platform he debuted during Gadget Night in July. Owl Observatory was opened once Richard returned with warmer clothing and his eyepieces. Attendance for the session was low, but this is no doubt due to it being can- celed. In the future, Richard declared a session will only be canceled when there’s a high percentage of rain and clouds as far west as the Mississippi! One of the objects we ob- served was Comet Barnard 2, which was discovered by FLAME BROLIED was the order of the day. Our esteemed chef, Jim Kurtz, properly prepares the burgers and dogs on his propane E.E. Barnard himself in June 1889 and making its first re- grill. Them babies were WELL DONE and TASTY! Yummy! turn since its discovery. What a great night! September 2006 Page 3 Some scientists, like Lowell Observatory Director Bob Mills says that the IAU decision is bad for the future of ObservationsObservations astronomy because it’s "not exactly motivational to young planetary scientists and astronomers." That depends on By Richard S. Bell how teachers and educational institutions (like the KAS) treat the IAU decision. Sure, no more major planets are Poor little Pluto just can’t seem to shake the controversy likely to be added to our solar system, but what about extra- that dates back to shortly after its discovery in 1930. As solar planets? Just after Pluto was demoted, astronomers you probably already know, the International Astronomical announced the discovery of a planet around the bright star Union (IAU) voted to “demote” Pluto from full planetary Pollux. Over 200 extrasolar planets have been discovered status to a mere “dwarf planet”. Thus, our solar system and there are many, many more awaiting discovery. once again contains eight planets. Other dwarf planets in- There’s plenty of planets for future planetary scientists and clude Pluto’s larger sibling, UB313, and the largest asteroid, astronomers to discover and explore. Ceres. Trans-Neptunian objects (TNO) like Quaoar and Sedna will likely be added to the new category by the IAU. This whole situation is a good example of the scientific process. Science, but its nature, continually submits long- As you might have guessed, I’m pleased with the IAU’s held ideas to critical investigation and eventual revision. decision. I left the “Planet Pluto Camp” when the discov- Copernicus shattered over 1,500 years of thinking when he ery of Sedna was announced in March 2004. Like many introduced the heliocentric (Sun-centered) model of the astronomers, I knew it was just a matter of time before a solar system. Many astronomers, philosophers, and reli- TNO larger than Pluto was discovered. That finally hap- gious leaders didn’t want to abandon the long-held Ptole- pened with the announcement of UB313 in July 2005. UB313 maic (Earth-centered) model. Lastly, Pluto is no longer the (temporarily nicknamed Xena - which is a STUPID name) oddball of the planets. According to IAU Resolution 6A, is about 5% larger than Pluto, but still less than half the Pluto “is recognized as the prototype of a new category of diameter of Mercury. trans-Neptunian objects.” Pluto may not be the largest TNO, but it’s the first that was discovered WAY ahead of The full story of the new planet definition and Pluto demo- it’s time by a Kansas farm boy turned Lowell Observatory tion can be found in a special article beginning on page 5. astronomer. Pluto is now properly placed with its family. What the article doesn’t quite go into is the fall-out from the announcement. If you thought the controversy would now quietly go away, then allow me to offer you a piece of dark-sky property in downtown Kalamazoo! Perhaps, the most vocal critic of the announcement is Dr. Alan Stern, Principal Investigator of the New Horizons mission to Group Field Trip to the Fourth Annual Pluto. Dr. Stern has called the decision “embarrassing” and “sloppy science”. I’ve even seen comments from some GreatGreat LakesLakes StarStar GazeGaze planetarium directors who say they’ll continue to tell stu- nd th dents and the general public that Pluto is the ninth planet. September 22 - 24 On the other side of the argument are comments from Dr. Our group field trip to the Black Forest Star Party in Mike Brown, which you can read on his web site. Dr. Pennsylvania didn’t quite turned out as planned (more on Brown is the astronomer that discovered UB313, which is that next month), so it’s time to go to Plan B. the object that ultimately forced a new planet definition. I believe out of all the opinions on this subject, Dr.