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Post by markt on Jul 13, 2008 19:51:15 GMT
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Post by Bill W on Jul 18, 2008 14:02:06 GMT
Hi,
Been off on holiday and not been near a computer.
I observed the comet in early May whilst I was on La Palma.
I was also trying to image two others. (The reason I was there.)
Got dozens of images but not processed them yet.
I'll try and put something here next week.
cheers,
Bill.
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Post by Bill W on Jul 22, 2008 8:21:24 GMT
Hi, Here's a pic of the comet.  It was about mag 8 at this time. There is also a wee galaxy in the top left of the frame. (NGC 3450, mag 11.90) (A small typo mod) |
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Post by Bill W on Jul 22, 2008 12:37:16 GMT
As for the picture it's a 10x2min shot with a 40 year old 300mm f4 lens on a modified dslr, sitting on top of a portable camera tracking mount.
It's unprocessed inasmuch as it's not been stretched or otherwise modified. Having said that I did apply a gradient removal filter to even the background but it's pretty much as is.
Bill.
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Post by Bill W on Aug 11, 2008 7:57:35 GMT
Here's the other Comet Boattini. Taken during a Perseid watch on Friday/Saturday night through what was continuously varying high cloud. It's a very poor picture but the comets there. The comet is about mag +10.5 to +11.0 By chance I caught a Perseid(?) and a satellite too!  |
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Post by markt on Aug 17, 2008 15:40:42 GMT
Great pics there Bill, unfortunately i've been totally unsucessful in observing Boatini due to this terrible weather we've been having here of late  |
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Post by Bill W on Aug 18, 2008 8:26:03 GMT
Hi,
Both Boattini 2007/W1 and Boattini 2008/J1 are now fading.
Yes the weather has been truly CR*P!, even for the us in west of Scotland.
(Nothing compared to Northern Ireland though, now thats serious rainfall!!!)
I hope that there might be a break in the weather next week so I can get a couple of shots before they get too faint.
cheers,
Bill.
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Post by Bill W on Nov 3, 2008 9:17:29 GMT
More comets... There are several wee comets trundling around at the moment. The good spell of weather has allowed a look at the northern ones.  Comet Broughton, ~mag 10.3.  Comet Christensen, ~mag 10.5 |
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Post by markt on Nov 3, 2008 15:59:18 GMT
Your comet pics are excellent Bill! - with darker nights upon us now i'm hoping to get the scope out on an evening a bit more. Work means solar observing has now become a weekend only activity.
What setup are you using to get these pics?
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Post by Bill W on Nov 4, 2008 9:03:13 GMT
Hi, Both taken using a 200mm f4 newtonian and a canon 350d. The Broughton image is 12 x 1 min but the scope was shaking a lot in the breeze. I'm surprised I got any usable images at all. The Christensen image was 3 groups of 10 x 1 min (there are a few chopped due to poor tracking) but aligned on the stars to show up the motion of the comet. Bill. PS Here's yet another picture from through the week. In over 20 years of observing I can't remember such a continuous spell of clear weather at this time of year!  Mu Ceph + NGC 1396. 15 x 2 min 180mm @f2.8 iso 800 |
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Post by markt on Nov 4, 2008 16:19:54 GMT
Fantastic Bill!  Just clouds further down south atm, so the scope hasn't been out for a while. There doesn't seem to be much light pollution where you're observing either. Keep up the excellent images! |
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