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I had attempted to bag the minuscule Martian satellites named Fear and
Panic, better known as Phobos and Deimos, several times before and during the BFSP last week without success. These attempts included using instruments as large as Russ Lederman's Denkmeier Two binoviewer equipped 20" ATM Dob, the 20" Starmaster Sky Tracker Dob belonging to Gary Honis, and Tom Whiting's new 30" ATM Dob. Much to my chagrin I learned that my observing partner Tony Donnangelo had seen both on Thursday night through Nick Zallar's 16" ATM Dob. Unfortunately, I was elsewhere at the time. Friday night was a rainy one in Potter County and the forecast for Saturday night seemed to be in a state of flux. However, the gods of the weather decided to smile upon the assembled masses on Saturday night. The skies cleared by nightfall and were steady and transparent for the course of the night. After some productive satellite and deep-sky observing I ventured over to Gary's 20" just prior to the time of the maximum eastern elongation of the 10.5 magnitude Fear. Gary was imaging Mars with a web cam. He turned up the gain to search for Phobos, a technique he had used previously, but we weren't to detect any suspicious pixels. Soon afterward Nick walked over and related that he was seeing Phobos with his 16". I immediately returned with him and put my eye to the ocular. At first I wasn't able to see a thing! However, after a few minutes Phobos popped into sight and I was able to hold it steadily rather easily without the use of an occulting bar. Eventually I returned to Gary's scope. By this time he'd placed an ocular equipped with an occulting bar into the focuser. After working the control paddle for a bit I finally brought Phobos into view. It was easier to see with the larger aperure and the occulting bar. We then tried to locate Deimos. Gary mentioned that he thought he saw it in one of the diffraction spikes to the west of the planet but I was unable to catch a glimpse of the 12.6 kilometer-sized rock. We had some excellent views of Mars that night. From time to time incredible detail was revealed. Novus Mons was quite distinct from the SPC and the Pipe (Sinus Sabeus and Sinus Meridiani) was very well placed. The North Polar Hood was unmistakable through Dave Barrett's 24" Tectron Dob. Dave Mitsky |
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#4
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Tom,
How've you been? If there was a 15" refractor at the BFSP I didn't happen to run across it. I did see an antique Cook refractor I believe and a 7.1" Astro-Physics Starfire, however. Dave Mitsky Hi Dave, Have been fine, thanks for asking. Someone posted on another newsgroup that there was a 15 inch refractor at BFSP. Must have been a typo - can't imagine anyone having a portable 15 inch light bender. Keep up with your great observing reports. Cheers, Tom Mack |
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Dave Mitsky wrote :
. . We had some excellent views of Mars that night. From time to time incredible detail was revealed . . Yes, the seeing was very good at times. In checking around the field I missed many good scopes, but the best views I had were through a 10" LX 200, 5" f/15 refractor with D&G lens, and a ATM 8" f/8 Dob job including homemade mirror. This one showed the most detail, had baffle rings and a long tube extension in front of the focuser. Sorry I forgot the name of the maker, but my hat's off to him. The highlight of the party for me was a tremendous bolide at 12:30 AM Sun. morning. I happened to be talking to someone and was pointed in exactly the right direction to see the fire ball light up just under the Big Dipper's handle and slowly decend vertically, shedding incandescent fragments like slow motion sparks. I estimate a magnitide akin to that of the quarter moon. It looked somewhat like a long-lived Roman candle ball on the way down. It took about 7 seconds to travel, extinguished at about 12 degrees elevation and moved so slowly that I assumed it was at a considerable distance; maybe 50 to 100 miles. Therefore I was surprised that many reported hearing a boom around the time it extinguished. I think I heard it, but was so exited that I can't be sure. A loud mass "OH!" and "AH!" went up from the half of the crowd that was looking north. I was shouting "Turn around! Turn around!" to the guy I was talking to, and he finally did and saw the finale, but he told me he had been looking at the illumination from it lighting me up. Aurora last year, Bolide this ; What the hell is going to happen at BFSP next year ? Howie |
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Howie Glatter:
Aurora last year, Bolide this ; What the hell is going to happen at BFSP next year ? ***** Great description; makes me wish I could have been there. As for next year-- An as-yet-undiscovered comet of with a head of magnitude 0 and huge, naked-eye dust and ion tails, on the Celestial Equator, transiting at midnight? A large asteroid striking the earth some 1000km south of the BFSP so that a few people have time to get pix of the fireball before dying? A near-miss by a large asteroid that is partially disentegrated by its grazing the outer atmosphere, and causes a meteor shower with c 250,000 per hour, with meteorites raining everywhere and two scopes and several vehicles with moderate damage, but no one seriously injured? Armageddon? The Second Coming? Davoud -- usenet *at* davidillig dawt com |
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