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#11
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Mark wrote:
Sky and Tel has discussed this quite a bit lately, and I managed to snap a pic of the 24 hour, 28 minute old Moon tonight just before it slipped below the roofline of the house across the street. I am about 25 feet above sea level (central Florida). http://www.geocities.com/smalldob/images/ymp_020905.JPG Nice shot. The youngest Moon I've observed was 22 hours 15 minutes old, on 7 September 2002, 6:24 local time; New Moon was 8:09 the previous night. That may not be the absolute record, but I contend that it is the youngest Moon seen by an observer who was then driving his car toward the north. (Yes, I did verify it by the side of the road, and no, I don't recommend you try this at home.) Brian Tung The Astronomy Corner at http://astro.isi.edu/ Unofficial C5+ Home Page at http://astro.isi.edu/c5plus/ The PleiadAtlas Home Page at http://astro.isi.edu/pleiadatlas/ My Own Personal FAQ (SAA) at http://astro.isi.edu/reference/faq.txt |
#12
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Third contact during an eclipse.
Bob "Mark" wrote in message ps.com... Sky and Tel has discussed this quite a bit lately, and I managed to snap a pic of the 24 hour, 28 minute old Moon tonight just before it slipped below the roofline of the house across the street. I am about 25 feet above sea level (central Florida). http://www.geocities.com/smalldob/images/ymp_020905.JPG The pic was taken with an Astele 70mm Maksutov-Cassegrain telescope, using a Kodak DC4800 digital camera couple afocally to a TeleVue 32mm Plossl. The camera was set to f/2.8, ISO 200, and I used a half second exposure. The image needs to be flipped horizontally and vertically, of course, to get the true orientation of the Moon, but I left it the way it is for the date/time stamp. Brightness and contrast were pumped up just a bit to increase visibility. If you get an error message, try later. Mark |
#13
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This has been discussed before on SAA as well as in S&T. In an old
thread from Jan. 1996, Jim Stamm logs seeing a 12 hour and 7 minute old Moon from Arizona. Tom Polakis and Pierre Schwaar observed the same Moon about a half hour later if I am reading correctly. http://groups-beta.google.com/group/...dd7f8345820ed3 http://groups-beta.google.com/group/...4cf87f242b280b http://groups-beta.google.com/group/...2fdd853114 2e The S&T article lists the current optically aided record as 11 hours, 40 minutes by Mohsen Ghazi Miraseed in Iran and also mentions a 2004 effort involving Jim Stamm. http://skyandtelescope.com/observing...cle_1421_1.asp Mark Stan Jensen wrote: On May 5, 1989, Terry Hunefeld, Kevin Jung, and Bruce Sidell spotted a 13 hr. 40 min. crescent moon near Grand Rapids, Michigan. This just missed the old record by 12 minutes which was, oddly enough, set just 12 minutes earlier by Robert Victor in Lansing, Michigan. This blew past the previous record by an hour or so. They even got written up in the Sept. 1989 Sky and Telescope. S. |
#14
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"Florian" wrote in message ... http://home.earthlink.net/~tonyhoffman/LunarVistas.htm Tony, very nice. -Florian Thanks, Florian. --Tony |
#15
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Brian, good job of logging the observation. I confess to also yielding
to the temptation to look out the window or make use of my MOON ROOF for a little impromptu sky scanning when the traffic is light That's what it's for, right? ;-) Mark Brian Tung wrote: The youngest Moon I've observed was 22 hours 15 minutes old, on 7 September 2002, 6:24 local time; New Moon was 8:09 the previous night. That may not be the absolute record, but I contend that it is the youngest Moon seen by an observer who was then driving his car toward the north. (Yes, I did verify it by the side of the road, and no, I don't recommend you try this at home.) Brian Tung The Astronomy Corner at http://astro.isi.edu/ Unofficial C5+ Home Page at http://astro.isi.edu/c5plus/ The PleiadAtlas Home Page at http://astro.isi.edu/pleiadatlas/ My Own Personal FAQ (SAA) at http://astro.isi.edu/reference/faq.txt |
#16
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Thanks, Mark. Despite the tight timing, at least you were able to react
quickly enough to get the shot of such a young Moon--an amazing feat. --Tony "Mark" wrote in message oups.com... Thanks, I neglected to mention that the dark shadow cutting across the top of the picture is the roofline of the neighbors' house, so I literally did this with only seconds to spare, and that the camera was set to 3X optical zoom. I vaguely knew that tonight would be a good opportunity but didn't prepare very well at all. After realizing I had the opportunity, there was barely enough time to assemble the tripod and scope, set the camera to about what I knew it should be, center the Moon in the eyepiece, couple the camera to it and snap the picture. In hindsight I should have also zoomed out and taken one with more stuff in the background to frame the shot better. Of course with the Moon moving its own width every two minutes, there isn't much time to improvise. Very nice image Tony. Mark tony hoffman wrote: Nice. The youngest I've seen was about 30 hours. The youngest I've photographed was this: http://home.earthlink.net/~tonyhoffman/LunarVistas.htm at about 53 hours. --Tony |
#17
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My personal best stands at 15h 18m, set back in the early 1990's. What I found surprising was that this was accomplished from right in my own front yard at near sea level. About a year or so earlier I had seen a 15h 22m old moon from the summit of Mount Wilson and had thought it unlikely I could ever better that mark. Perhaps worth noting while on this subject is that I was the first person ever to report seeing the opposing lunar crescents on consecutive days (old moon in the morning of one day, young moon the following evening), a much tougher trick than spotting extremely young moons. Joe Ashbrook, S&T's editor several decades ago and the creator of the young moon sighting fad, once wrote that he considered this feat might be impossible. Sadly, he had passed on before I accomplished it since he had a great interest in the subject of extreme lunar sightings. Incidentally, be very cautious in accepting at face value claims of extremely young moons. Back when I wrote for S&T I asked several well known amateurs outside the magazine to look into some of the claimed sightings that had been reported in their area of the country. In several of the instances it was found that clouds had previal or the local terrain would have precluded any possibility of such a sighting being made on the occasion in question. I'm afraid not everybody is completely honest when it comes to claiming to have broken records. JB |
#18
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Hi, thanks for the info and the note about observing both sides of the
new moon cycle. I agree that seeing the very old Moon is tougher than the very young one. I looked for one in January that was in the 25-ish hour before new range but couldn't find it even in a binocular. Was your sighting unaided or aided, and if aided, with what instrument? The S&T article mentions O'Meara's sighting unaided of a 15hr, 32min Moon on Mt. Wilson in 1990 as the unaided record. Mark CNJ999 wrote: My personal best stands at 15h 18m, set back in the early 1990's. What I found surprising was that this was accomplished from right in my own front yard at near sea level. About a year or so earlier I had seen a 15h 22m old moon from the summit of Mount Wilson and had thought it unlikely I could ever better that mark. Perhaps worth noting while on this subject is that I was the first person ever to report seeing the opposing lunar crescents on consecutive days (old moon in the morning of one day, young moon the following evening), a much tougher trick than spotting extremely young moons. Joe Ashbrook, S&T's editor several decades ago and the creator of the young moon sighting fad, once wrote that he considered this feat might be impossible. Sadly, he had passed on before I accomplished it since he had a great interest in the subject of extreme lunar sightings. Incidentally, be very cautious in accepting at face value claims of extremely young moons. Back when I wrote for S&T I asked several well known amateurs outside the magazine to look into some of the claimed sightings that had been reported in their area of the country. In several of the instances it was found that clouds had previal or the local terrain would have precluded any possibility of such a sighting being made on the occasion in question. I'm afraid not everybody is completely honest when it comes to claiming to have broken records. JB |
#19
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Bob Schmall wrote:
Third contact during an eclipse. Bob "Mark" wrote in message ps.com... Sky and Tel has discussed this quite a bit lately, and I managed to snap a pic of the 24 hour, 28 minute old Moon tonight just before it slipped below the roofline of the house across the street. I am about 25 feet above sea level (central Florida). http://www.geocities.com/smalldob/images/ymp_020905.JPG The pic was taken with an Astele 70mm Maksutov-Cassegrain telescope, using a Kodak DC4800 digital camera couple afocally to a TeleVue 32mm Plossl. The camera was set to f/2.8, ISO 200, and I used a half second exposure. The image needs to be flipped horizontally and vertically, of course, to get the true orientation of the Moon, but I left it the way it is for the date/time stamp. Brightness and contrast were pumped up just a bit to increase visibility. If you get an error message, try later. Mark All right all, Ill bite What's all this reference to a young/old moon ? Regards Phil |
#20
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John Bortle wrote:
My personal best stands at 15h 18m, set back in the early 1990's. Incidentally, be very cautious in accepting at face value claims of extremely young moons. Hi John, Later in this thread, somebody has pointed to my discussion on this group of a sighting of a 12 1/2 hour old moon from Arizona in 1996. I was with Pierre Schwaar, who was on a campaign to set the record. Everything was just about optimal: the ecliptic stood nearly straight up, the moon was near perigee, sky transparency was excellent, and our horizon near Sentinel, AZ resembled an ocean horizon. When Pierre swept it up, it was unmistakeable as a 60-degree, unbroken arc, much unlike the descriptions of "Baily's Beads" I had read about. Several of us were able to view it for about five minutes through his 8" RFT. The next day we learned that Jim Stamm in Tucson viewed it a half hour earlier. Pierre challenged Jim's sighting, but I'm sure it was legitimate as well. Tom |
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