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THE REFLECTOR Volume 4, Issue 8 October 2005 Editorial

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THE REFLECTOR Volume 4, Issue 8 October 2005 Editorial ISSN 1712-4425 PETERBOROUGH ASTRONOMICAL ASSOCIATION THE REFLECTOR Volume 4, Issue 8 October 2005 Editorial his past month marked several new T discoveries in astronomy. The Cassini probe is still orbiting the Saturn system and has returned some incredible photos of the ringed planet’s moon Hyperion. As you can see from the photo, it is the strangest looking object yet photographed. The discoveries don’t end in the region of Saturn. Last month it was UB 313, a trans-Neptunian object twice the size of Pluto was discovered. Also it appears that Pluto has three moons in total. The candidate moons have been provisionally named S/2005 P1 and S/2005 P2 and are approximately two to three times as distant from Pluto as Charon. Next month Shawna Miles will be taking over the editorship. I would like to thank her for taking on this important post in our club. I am sure you will all support her efforts by continuing to produce such Sponge Bob, Round Pants! Not really. Hyperion, one of Saturn’s moons, is high quality articles as you have had in only 266 kilometers across. It has an irregular shape, and spins in a chaotic the past. Without you, the newsletter rotation. Much of its interior is empty space, hence it looks like a sponge. (and the club) would not be as great as it rain. Here's a summary of what took is. Meeting Notes place: Thanks go out to all of you who have Joanne and Bob Stockton took over contributed to the newsletter over the September 16, 2005: responsibilities as our new librarians. past few years. In particular I would like They also took on about 185 books and to thank John Crossen, Rick Stankiewicz, Friday night's meeting went well 60+ videos. Puff, puff, pant, pant. Many Rob Fisher, and Mark Coady who have despite the need to cancel our Armour thanks from us all. become ‘regular’ contributors. Without Hill observing session thanks to the their help, the newsletter would not have the great articles and readership such as it is. Inside This Issue EDITORIAL MEETING NOTES Clear Skies FIRE IN THE SKY THE SKY THIS MONTH Charles W. Baetsen NEW IMAX MOVIE MARS IS RACING TOWARDS US [email protected] NEW PLANET DISCOVERED, DARK MATTER—PART II ASTRONOMY IN PHILATELY THE DARK SIDE OF MARS Page 2 THE REFLECTOR mount quietly “whirred” from one Messier target to another. And it did so with remarkable speed and amazing accuracy, centering each successive target nicely in the eyepiece. Plus, you needn’t miss a moment of the action because there was also a monitor in the warm-up/coffee hut just across from the observatory. It was sort of like having your own Discovery Channel without the TwinRicks Commercials. If observing were always this comfortable, even wives would like astronomy. Our thanks go to Brett for graciously sharing his wonderful world with us. A lot of thought and planning went into his observatory as well as an appreciation for esthetics. The results were most rewarding for all. In fact Brett might just invite us back if we’re real nice and say please. The Sept 30th meeting was held at Brett Hardy’s Observatory. Here you can Our next meeting will be on October 14 see Brett with his 7” TBM along with PAA members Rob Fisher and Jim when veteran astrophotographer Gord Webster. Rife will be our guest speaker. Gord is a member of the South Simcoe Amateur Mark Coady made a DVD of his observatory. Astronomers and one of the prime weekend at the Huronia Starparty and movers behind the Huronia Star Party. brought it along for us to enjoy. In about The sparkling white dome is home to a Gord has recently switched from film to 20 minutes we were shown everything beautiful Astro-Physics computerized a digital LSR and will show some of his from an acre of telescopes - including a GoTo mount. On it rides a 7-inch recent work as well as sharing some tips 20" Dob - to guest speakers, and a guitar TBM refractor with superb optics. And on the brave new world of digital astro trio who performed very well. We also on the TBM a Tele Vue refractor imaging. saw some great aurora photographs as hitches a ride along with a MalinCam. the group of about 150 starpartiers were Together they provide real time video I sincerely hope you can make it to this treated to auroral displays on Friday and of objects in the eyepiece. It’s all wired Saturday nights. Thanks Mark and Susan. to Brett’s computer and the Starry Night software which displays the Peterborough Before showing the DVD Alien Planet, segment of the sky you’re looking at – Astronomical in vision-preserving red light, of we welcomed Ian Thompson as our Association newest member and passed the pot for course. the 50/50 draw which Joanne Stockton You might think the video element is The Reflector is a publication of the won. Welcome aboard Ian and Peterborough Astronomical Association congratulations Joanne. redundant, but when five or six people are also observing with you, it’s good (PAA). Founded in 1970, the PAA is your local group for astronomy in The meeting concluded about 11:00 as to have something for them to look at while waiting for their turn at the Peterborough and the Kawarthas. the DVD rambled on a bit longer than I had planned. I'll try to do better (read eyepiece. And I must admit, watching Website shorter) next rainy night. M13 on TV is an interesting experience. Come to think of it, this www.geocities.com/paa_ca September 30, 2003 would be great in my observatory on crowded nights! I’m sure Deb wouldn’t Email [email protected] September 30th’s meeting took place at mind if I moved the 52” Toshiba out to Brett Hardy’s observatory. Brett is one of the observatory and... No. Bad idea John. Bad. Bad. Club Mailing Address those methodical people who takes the ℅ John Crossen time to put together all the right stuff in The night passed quickly as the big AP 2254 County Road 507 the right way. And it shows in his Buckhorn, ON, Canada K0L 1J0 Page 3 THE REFLECTOR An eager group of PAA members turned up for Gord Rife’s talk on digital SLR astro-photography. A single 3-minute shot taken with a digital SLR is as good as anything film could accomplish in 15 minutes or longer. The new digital technology is certainly cheaper than a CCD camera, and renders both them and film obsolete! meeting, as Gord’s work is always session – weather permitting. If it’s freeware on an everyday laptop impressive and his talks are both lively cloudy, we’ll be back at the zoo doing computer. and informative. Until then, keep the the DVD thing. lights down and the stars up big and He then showed us the comparison bright. Crossen also announced that he is process he went through in choosing the putting together the 2006 event Canon D20 vs the Nikon equivalent. The October 14, 2005: calendar and is open to suggestions for Canon won hands down because of its the upcoming year. Tentative instant adaptability to astrophotography. Tonight’s PAA meeting was well suggestions include a return visit to There’s even a Canon Astrophotography attended with 26 PAA members on hand Haliburton Forest Observatory, a joint website. So, if they love us, we love plus four guests from the South Simcoe observing session with the Kingston them. and York Simcoe astronomy clubs and Bellville RASC chapters, the joining us. Our guests were Peter addition of Jaan Teng’s and Brett The capabilities of the camera are Lanscail, Brian Colville of Maple Ridge Hardy’s sites to our usual roster of dark phenomenal. For starters, you don’t have Observatory, Scott Gilbert, and Gord sky locations, and the announcement of to take a stack of notes and wait two Rife, SSAA Treasurer and our guest May 6th as International Astronomy weeks to see what worked. Instant replay speaker for the night. Also present was Day. shows what’s good and what’s not. Plus Carlo from the Peterborough Camera the camera automatically records all your Club. With that we settled back to enjoy Gord shot data. Rife’s talk on Digital Then there’s the quality of the images. Club President, John Crossen, opened the Astrophotography. Gord took a meeting by welcoming our guests and different approach to the subject by A single 3-minute shot was as good as passing the coffee can for the 50/50 demonstrating that digital doesn’t anything film could accomplish in 15 draw. He also put a stack of old require a big digits in the hip pocket to minutes or longer - even with stacked astrophoto film up for auction with the get involved in the hobby. His first images. With a little manipulation, the proceeds going to the PAA. While the examples were simple “point ‘n shoot image could be enhanced to exceed the coffee can was making the rounds, Rick camera on tripod shots” of aurora and saturation and sensitivity of film many Stankiewicz passed around a photograph planetary/lunar conjunctions. Next up times over. And, of course all the time that he took at Brett Hardy’s Cedar Knoll were Moon and Sun shots that can be Gord was talking we were jealously Observatory during our last observing taken afocally – that is just holding the ogling his photographs of M31, M13, session.
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