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History & Future of Northmoor Observatory

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The Official Publication of the Peoria Astronomical Society, Inc. Summer Issue No. 154 June 2003 Peoria History & Future of NorthMoor Astronomical Academy Society, Inc. P.O. Box 10111 Observatory Honors Peoria IL by Dr. Bert Princen 61612-0111 Eric Clifton In 1930 the Peoria Academy to function to the satisfaction By Becky Clifton of Science was formed by a of the members and the gen- Member of the group of local science educa- eral public alike, the Astron- Peoria Academy tors, researchers and interested omy Section, later renamed the On April 11, 2003 The of Sciences amateurs for the purpose of Peoria Astronomical Society, Peoria Academy of Science and the bringing a better understanding decided to develop a good ob- held their annual banquet at Astronomical Barracks Cater Inn. Among League of scientific matter to the citi- servatory. That opportunity zens of central Illinois. One came when Bradley University the members was longtime Peoria Astronomical Society year later the fledgling organi- offered its fine telescope to the Board of zation decided that it would be Peoria Academy of Science as member, Eric Clifton Eric Directors: beneficial to create a number of an outright donation. This was recognized and awarded topical sections. Ornithology, quality instrument had not an Honorary Membership in president botany, astronomy, geology and been used for a number of the Peoria Academy of Sci- Scott Hay entomology still do exist today years and did not serve anyone ence for years of work for it's Astronomy Section. Eric has Vice-president and are very active. Others fell during all that time. Its manu- out of favor and disappeared. facture dates back to 1909. earned recognition for his Tim Lester many contributions and ac- Among them archeology, an- The Academy and Astron- Secretary thropology and microscopy. omy Section started a cam- complishments over the last Dan Son Others were added later, such paign to raise the needed funds 41 years. Here is an outline of as herpetology. Several of the and find a suitable permanent Eric’s involvement with PAS Treasurer chapters incorporated in their location for this large refractor and the passion he holds for Mike Shelton own right, and a few of them telescope. Together with the astronomy. Pre-PAS Activities Legal Agent even received their own 501- Peoria Park District an excel- (c)-(3) status from the U.S. lent site was found on the Developed interest in As- Mike Hay tronomy at age 8 – found Go vernment. NorthMoor Golf Course at the Parliamentarian Most of the sections never north end of town. In July Dad’s college astronomy text Mike Hay had any need to own buildings 1955 the observatory was book or equipment. They all found completed and dedicated. Al- First Northmoor visit Nominating good meeting places, such as though the building was the (Northmoor was just one year Chairman Lakeview Museum, Forest Park property of the Astronomy old) was at age 8; stood in Steve Russell Nature Center or privately Section from the beginning, line with his Dad for more owned meeting halls. However, than an hour to see Mars (Continued on page 10) (Continued on page 8) Table of Contents History and Future of North Moor Observatory. 1 Monthly Program Schedule. 5 Academy Honors Eric CLifton . 1 Can You Spot This?. 6 Needles from the Hay Stack. 2 Minutes of the Board of Directors . 7 [email protected]. 3 Building My Own Telescope . 9 Of Starlites Past . 4 Astronomy Humor . 11 Astronomical Calendar . 4 Observing Club Notes. 12 The Bulletin Board. .. 5 1 Starlite dollar amount. This is absolutely We have had some excellent Needles from essential in order for Bert Princen to speakers recently. PAS alumni Dr. convince outside givers that this Bernard Jackson returned to Peoria the Hay Stack group believes we should keep to give us the early results from his by Scott Hay NorthMoor open for public observ- solar weather prediction experi- ing. Why should somebody outside ments. One of his goals is to get ear- I have to compli- our group help us rescue our own lier warnings and better ment Jeff Pittenger scope when only 20 percent of our measurements back to for putting together own membership has contributed Earth. Dr. Linda French ...We have the previous terrific anything? These groups will ask spoke about her research had some Starlite newsletter. what percentage of our membership to sort out the histories of Do any of you has shown support for this cause. If asteroids and comets. excellent know who put to- 80% of the membership would not Brian Poelker allowed us speakers gether the first even give a five dollar bill, an out- to hold a piece of Mars, Starlite newsletter? side group would wonder why are the Moon, Vesta, and recently... (Answer is at the end) they being asked to join us in our other items while he ex- I hope you all enjoyed the lunar efforts. What are we missing? Does plained some of the geol- eclipse. Now is the time to look at astronomy really no longer play in ogy of meteorites. Mars over these next few months. It Peoria Astronomical Society? Thanks to Dan Son, Nerio, Mike will be closer than at any time for For me, the highlight of the last Shelton, Scott Swords, Calene 60,000 years. several months was seeing Eric Fle ming, Steve Russell, Sheldon Few people on Earth have the Clifton was awarded an honorary Schafer, David Grebner, and every- opportunities that PAS members membership to the Peoria Academy one else who organized and came and Peorians enjoy viewing Mars of Science for between 35 and 40 out to our Astronomy Day event in through such a perfect instrument years of hard work for the astron- conjunction with Lakeview Mu- especially suited to solar system omy section. Eric told me his jaw seum. Thanks to Sheldon Schafer observing. (NorthMoor Observa- dropped when he heard the news. for providing several nice prints and tory) He was not expecting it. When I posters courtesy of Lakeview Mu- Even if you can only afford five look at the amount of time and ef- seum and NASA. or ten dollars, please make your fort Eric puts in behind the scenes check out to "Peoria Astronomical even today, given he has a family -Scott Hay Society-Public Observing Fund" to ordering him to cool his jets, it show that you think it is worthwhile would be hard to imagine how much (Answer: The first person to put to keep NorthMoor Observatory different our situation might be if it together the first Starlite newsletter open. It is the gesture that counts. were not for his sense of duty to- was past president Bernice Greb- I am pleading with you poor ward PAS. ner.)y folks to send us a check for any Starlite is published quarterly during the months of March, June, September, and December by the Peoria Astronomical Society, Inc., P.O. Box 10111, Peoria IL 61612-0111. All rights reserved. Deadline for submission is the third Wednesday of the preceding month. Submissions should be directed to Jeffrey Pittenger, 721 Fillmore St, Morton IL 61550, or e-mailed to <[email protected]>. Any materials submitted to Starlite become property of the Peoria Astronomical Society, unless other arrangements are made beforehand. Except as noted, written and graphical material from this publication may be reprinted only for non-profit benefit of interested parties, provided specific credit is given to the writer(s), artist(s), and the Peoria Astronomical Society. Any other use of material, including graphics and photographs, is subject to express permission from the Peoria Astronomical Society. Editors-in-Chief Jeffrey Pittenger <[email protected]> Contributing Editor John Barra <[email protected]> Production Editors Calene Fleming Scott Swords Michael Frasca <[email protected]> Jessica Frasca <[email protected]> Layout and Copy Editor Jeffrey Pittenger <[email protected]> Production Assistant Alex Frasca Visit our site on the World Wide Web at <http://www.astronomical.org> 2 Starlite [email protected] From: "Richard Tennis" compiled by Jeff Pittenger <mtennis@m...> Date: Thu Apr 3, 2003 Subject: Re: [PeoriaAstro] Meeting We would love to have the mighty PAS Messier Marathoners to do their stuff From: "gene Hodel" <ghodel43@m... > at the Star House site. However, I don't Here are some highlights from the Date: Fri Mar 28, 2003 know if the straight south views would be Peoria Astronomical Society’s e- Subject: Re: [PeoriaAstro] What does very good from our inner yard. The trees this mean? mail group. If you are an active would block anything below -25 degrees Thanx Tim or anyone else who can help. The member of the PAS and would like declination. The west view is very poor, as three objects I found are: Stk1in Cas at 2h well. Which means M77 is not possible. I to subscribe to PeoriaAstro, send an 15.0m +59 25, Stk2 in Cam at 3h 16.3m +59 would like for an evaluation as to the possi- e-mail message to Michael Frasca 25, and Stk23 inVul at 19h 35.8m +25 13. bility for our site to be acceptable....John? These are all shown as open clusters. Gene <[email protected]> with the follow- Another site would be the Mackinaw @ @ @ ing information: name, snail-mail Valley Vineyard. I could ask Paul Hahn, address, and e-mail address. You From: "Dan & Barb Son" the owner of the place. We already are will be added to the group. <sunshine92@i...> cleared for the second star party at their Date: Fri Mar 28, 2003 place August 23rd with TCAA and possi- @ @ @ bly SAS, Sangamon Astronomical Society.
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  • ASTRONOMİ Terimleri

    ASTRONOMİ Terimleri

    A tayf türü yıldızlar (Alm. Sterne von Typ A, pl; Fr. étoiles de type A, pl; İng. A type stars) ast. Etkin sıcaklıkları 7.500 ile 10.000 K, anakolda olanların kütlesi 1,6 ile 2,5 Güneş kütlesi aralığında olan, tayflarında güçlü hidrojen ve iyonlaşmış ağır element çizgileri görülen açık mavi yıldızlar. aa indeksi (Alm. aa Index, m; Fr. indice aa; İng. aa index) ast. Yaklaşık zıt kutuplarda 50 derece enlemlerinde bulunan iki istasyondan elde edilen K jeomanyetik aktivite indisinden hesaplanan günlük ya da yarım günlük jeomanyetik aktivite indeksi. Abell kataloğu (Alm. Abell-Katalog, m; Fr. catalogue Abell, m; İng. Abell catalogue) ast. 1958 yılında George O. Abell tarafından yayınlanan, 2712 yakın gökada kümesini içeren, her bir kümenin en az 50 gökada içermesi, Abell yarıçapı içinde bulunacak kadar derlitoplu olmaları, 33 ile 330 megaparsek arasındaki uzaklıklarda bulunmaları gibi kriterleri sağlayan gökadalar kataloğu. Abell yarıçapı (Alm. Abell-Radius, m; Fr. rayon d'Abel, m; İng. Abell radius) ast. Abell kataloğundaki gökada kümelerinden hareketle, uzunluğu 2,14 megaparsek kabul edilen, tipik bir gökada kümesinin yarıçapı. açık evren (Alm. offenes Universum, n; Fr. univers ouvert, m; İng. open universe) ast. Ortalama madde yoğunluğunun kritik madde yoğunluğuna oranı birden küçük olduğunda, uzayın geometrik şeklinin bir eyer yüzeyi gibi açık olduğunu, bir üçgenin iç açılarının toplamının 180 dereceden küçük olduğunu, kesişmeyen doğruların her noktada eşit uzaklıkta olmadıklarını, evrenin hiperbolik şekilde olduğunu öngören evren modeli. açık yıldız kümesi (Alm. galaktischer Haufen, m; offener Sternhaufen, m; Fr. amas galactique ouvert, m; amas ouvert, m; İng. galactic cluster; open cluster) ast. Birbirlerine kütleçekim kuvveti ile zayıfça bağlı bir kaç on ila bir kaç yüz genç yıldızdan oluşan topluluk.