Got a question on astronomy that you'd wanted to ask? Ask your questions here and see if the old timers can give you some good answers.
VinSnr
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Posts: 2310 Joined: Sun Sep 28, 2003 7:01 pmLocation: Andromeda Galaxy
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by VinSnr Mon Oct 09, 2006 12:06 am
Since we can't get good skies at night, how about capturing them during daytime?
ariefm71
Posts: 2304 Joined: Wed Jan 28, 2004 4:15 pmLocation: bedok
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by ariefm71 Mon Oct 09, 2006 12:15 am
The MallinCam will make that 16" SCT a 48". Can't imagine what it will look like if the image is captured at night time.
VinSnr
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Posts: 2310 Joined: Sun Sep 28, 2003 7:01 pmLocation: Andromeda Galaxy
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by VinSnr Mon Oct 09, 2006 12:21 am
ariefm71 wrote: The MallinCam will make that 16" SCT a 48". Can't imagine what it will look like if the image is captured at night time.
I am amazed that the M3 was captured as a single frame, no stack nothing.
That camera is specially modded for this kind of purposes. But pretty expensive.
Airconvent
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Posts: 5804 Joined: Tue Sep 30, 2003 11:49 pmLocation: United Federation of the Planets
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by Airconvent Mon Oct 09, 2006 12:26 am
I'm really surprised they can actually resolve the difference between the faint object and day light.....must have very high dynamic range..
The Boldly Go Where No Meade Has Gone Before Captain, RSS Enterprise NCC1701R United Federation of the Planets
aquillae
Posts: 255 Joined: Sun Jul 16, 2006 5:04 pmLocation: Lampung
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by aquillae Mon Oct 09, 2006 4:30 am
amazing, i wonder how long was the exposure time for both objects...
VinSnr
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Posts: 2310 Joined: Sun Sep 28, 2003 7:01 pmLocation: Andromeda Galaxy
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by VinSnr Mon Oct 09, 2006 7:34 am
aquillae wrote: amazing, i wonder how long was the exposure time for both objects...
If I am not wrong, should be ard 12 seconds max. That camera has an exposure of 2 secs, 6 secs and 12 secs.
aquillae
Posts: 255 Joined: Sun Jul 16, 2006 5:04 pmLocation: Lampung
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by aquillae Mon Oct 09, 2006 9:49 am
I see, thanks VinSnr.
VinSnr
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Posts: 2310 Joined: Sun Sep 28, 2003 7:01 pmLocation: Andromeda Galaxy
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by VinSnr Mon Oct 09, 2006 10:00 am
aquillae wrote: I see, thanks VinSnr.
That's a pretty good idea. Espeicially when most comets are discovered near dawn or sunset.
Tachyon
Posts: 2038 Joined: Wed Jun 01, 2005 11:40 amLocation: Bedok
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by Tachyon Mon Oct 09, 2006 1:48 pm
I had always wondered when young why those large observatories do not use their scopes during day time. The answer turned out that the daytime atmosphere is not stable enough for their precision work and they would have problems cooling the scopes down quickly at night if they exposed it to daytime temperatures. But for amateurs, I think it would not matter much.
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
