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FEBRUARY 2008 the Denver FEBRUARY 2008 The Denver Newsletter of the Denver Astronomical Society One Mile Nearer the Stars Monkey Business The Monkey Head Nebula (NGC 2174) is an HII emission nebula in Orion, and is associated with the open star cluster NGC 2175. It’s thought to be about 6400 light-years away. The open cluster NGC 2175 can be seen at the bottom center of the Image copyright 2008 Philip Good nebulous region of the Monkey Head, and at the upper left side of the image is the emission nebula SH2-247. FABULOUS FRIGID FEBRUARY FEBRUARY SKIES ars glares down at us like an im- on our faster track around the Sun. The The first, or penumbral phase of the Mpertinent UFO these evenings. It Moon, meanwhile, will suffer an eclipse eclipse will just be started when the Moon really is the Red Planet! But it will grow on the night of Wednesday February 20 rises at dusk. The real darkening begins dimmer as the month progresses, getting as it gets to that southeast part of the sky with the umbral phase at 8:00 P.M., which smaller and farther away as we swing by that has Saturn and Regulus, the alpha star we will witness in its entirety of 52 min- of Leo. Saturn is brightest for this year at utes, if weather permits. An evening Schedule of Events ................... 2 the end of the month. See how it looks eclipse can be a lesson in nature lore for Observer during the middle of the eclipse when the the children since they’ll still be up at that Society Directory ..................... 2 Moon isn’t washing it out. This eclipse hour, and a way to get the family away David Grinspoon, combination is a great binocular sight and from the TV. If you can’t make the special photo op. Lunar Eclipse open house at Chamberlin February Speaker .................... 3 Observatory, set up folding chairs and get Messier Marathon Part 1 ...... 4-5 6 ........................................... New moon out the sleeping bags and binoculars, set 13 .............................. First quarter moon up a scope for Saturn and maybe make Membership Updates ............ 6-5 18 ................................... Presidents Day some hot chocolate. If you feel scientific 20 ............... Full moon and Lunar eclipse Membership Info ........ back page 28 .............................. Last quarter moon Continued on page 2 FebruaryInside The 2008 One Mile Nearer the Stars Page 1 President’s Corner Society Directory President: good friend, who is a scuba diver and a Wayne Green (303) 530-1023 pilot, taught me to ask myself some Email: [email protected] A Vice President: questions every now and then. Where have Keith Pool (303) 718-7273 we been? Where are we? And where are we Email: [email protected] going? Good advice when your feet aren’t Secretary: Darrell Dodge (303) 932-1309 on the ground, and right now it is good ad- Email: [email protected] vice for all amateur astronomers. We have Treasurer: to admit we’re in the 21st century and fan- Brad Gilman (720) 488-1028 Email: [email protected] tastic changes in astronomy have brought us to where we are right now. Executive Board Members We are at the point in DAS’s calendar Jack Eastman Ron Pearson when we think about the elections, and im- Joe Gafford David Shouldice portantly, where we want to be headed this Frank Mancini Bryan Wilburn year and into the future. This means elec- Ron Mickle Dan Wray Steve Solon, Past President tions and developing programs for 2008. President Emeritus, Larry Brooks Holding a position with the Executive Board of the DAS is a great privilege and Committees often quite fun. You are involved with ques- Van Nattan-Hansen Scholarship Fund tions about how to maintain all the com- Ron Pearson (Chair) munity outreach we perform and how to P.O. Box 150743 Wayne Green, DAS President Lakewood, Colorado 80215-0743 develop interesting and meaningful engage- EGK Dark Site Committee: ments for the membership. If you are inter- where to use the scope in the next step! Wayne Kaaz (Chair) (303) 840-1549 Email: [email protected] ested in running for office, contact Dennis Members should contact Ron Pearson or any IDA Representative: Cochran, Wayne Kaaz, or Ivan Geisler and other board member to join in this effort. Dr. Robert Stencel toss your hat into the ring. We are looking for a new chairman for the Public Outreach Committee: We are starting a new Edmund G. Kline Dark Site. Candidates Ron Mickle (Chair) Bryan Wilburn (External Outreach Coordinator) project to redesign and should make their intentions known to a Email: [email protected] (303) 542-5137 build a complete telescope DAS board member. Special thanks to Student Astronomy Committee: around the excellent 17.5" Wayne Kaaz, the exiting chair of the EKGDS Naomi Pequette ( Chair) mirror and diagonal we committee and to the committee members Volunteers or Appointed own. This effort focuses on Continued on page 3 Representatives building an instrument. We will decide ALCor: Jerry Sherlin Email: [email protected] (303) 680-6894 FEBRUARY MARCH IDA Representative: (International Dark Sky Association): Dr. Robert Stencel 9-10 EGK Dark Site Weekend 8-9 EGK Dark Site Weekend— Newsletter: 16 Open House at Chamberlin Messier Marathon 1 Observer editor, Patti Kurtz Observatory (Begins at 5:00 P.M.) 9 Daylight Savings Time Starts (2:00 Email: [email protected] (720) 217-5707 Observer proofreaders: Darrell Dodge and Steve Solon 20 Lunar Eclipse Open House at A.M.) The Observer is available in color PDF format from Chamberlin Observatory (Begins 15 Open House at Chamberlin the DAS website. at 6:00 P.M.) Observatory (Begins at 5:00 P.M.) Website: 22 General Membership Meeting at 28 E-Board meeting at Chamberlin Darrell Dodge DAS Information Line: D.U.’s Olin Hall (Begins at 7:30 P.M.) Observatory (Begins at 7:30 P.M.) (303) 871-5172 29 E-Board meeting at Chamberlin 29 DAS Annual Banquet (Begins at 6:00 DAS Correspondence: Observatory (Begins at 7:30 P.M.) P.M.) Denver Astronomical Society Chamberlin Observatory C/O Wayne Green 2930 East Warren Avenue Public nights are held every Tuesday and Thursday evenings beginning at the following Denver, Colorado 80210 times: March 9 - April 14 at 8:00 P.M. April 15 - September 1 at 8:30 P.M. The Executive Board conducts the business of the DAS at September 2 - March 8 at 7:00 P.M. at Chamberlin Observatory 7:30 P.M. at Chamberlin Observatory. Please see the Costs to non-members are: $3.00 adults, $2.00 children. Schedule of Events for meeting dates. All members are Please make reservations via our website (www.thedas.org) or call (303) 871-5172. welcome. DAS Schdule thedas.org Page 2 The Denver Observer February 2008 David Grinspoon Will Speak to the DAS in February by Keith Pool avid Grinspoon is an internationally the Boston Globe, the Los An- Dknown Planetary Scientist who is geles Times and the New York funded by NASA to study the surface and Times. His technical papers atmospheric evolution of Earthlike planets have been published in Na- elsewhere in the universe. Grinspoon was ture, Science, and numerous awarded the 2006 Carl Sagan Medal for Pub- other journals. Dr. Grinspoon lic Communication of Planetary Science by has been featured on numer- the American Astronomical Society. He is ous television (PBS’s Life Be- Curator of Astrobiology at the Denver Museum yond Earth; BBC’s The Plan- of Nature & Science Adjunct Professor of As- ets) and radio shows (NPR’s trophysical and Planetary Science at the Univer- Science Friday and Weekend sity of Colorado. Dr. Grinspoon serves as a fre- Edition, Wisconsin Public Ra- quent advisor to NASA on space exploration dio, BBC World Service), and strategy, and is lead scientist for astrobiology on he is a regular astrobiology an instrument that will fly on NASA’s next Mars correspondent for ABC Ra- rover. He is Interdisciplinary Scientist for Cli- dio. He has given invited talks mate Studies on Venus Express, the European at international conferences Space Agency’s mission which is currently in or- throughout the U.S., Europe, bit around Venus. He has also lectured and pub- and Australia. Grinspoon lished widely. His first book, Venus Revealed, holds degrees in Philosophy of (Perseus Books, 1998) was a Los Angeles Times Science and Planetary Science Book Prize finalist. His latest book, Lonely Plan- from Brown University and a ets: The Natural Philosophy of Alien Life won the doctorate in Planetary Sci- 2004 PEN Center USA Literary Award for Re- ences from the University of search Nonfiction. Entertainment Weekly called Arizona. Lonely Planets “proof that life on this planet is For more information, see both intelligent and funny.” Grinspoon’s popu- www.lonelyplanets.net or lar writing has appeared in Slate, Scientific Ameri- www.funkyscience.net. Dr. David Grinspoon can, Natural History, The Sciences , Astronomy, Internationally known planetary scientist to speak at the February 22 General Membership Meeting. President’s Corner (continued) for greatly improving the site. We are seeing position of Vice Director. Vern Raben of LAS (23-26 May) starts of this summer’s calen- more and more people flee light polluted skies is seeking the position of Regional Represen- dar. Followed by the AAS summer meeting and are happy to provide a great site to sup- tative, and Gene Schermerhorn is running as (1-5 June) in St. Louis. port observing. an incumbent for Secretary/Treasurer. On February 20th we have a lunar eclipse Darrell Dodge is taking on the role of As- The league has formed a committee to En- and a special DAS open house as an appe- tronomical League Coordinator (ALCor) for vision the League’s Future.
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