Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Daniel on Dec 22, 2009, 16:21:22

Title: Could it be, yet another near perfect night???..................
Post by: Daniel on Dec 22, 2009, 16:21:22
...............Well, apart from the whole sky being brightened by the reflection from the snow anyway!

Daniel
:O)
Title: Re: Could it be, yet another near perfect night???..................
Post by: Fay on Dec 22, 2009, 17:35:44
Setup outside, but have no dew strip for 6". Could not even clear it with hairdryer, frost too heavy, so in now
Title: Re: Could it be, yet another near perfect night???..................
Post by: JohnP on Dec 22, 2009, 19:02:10
blimey Fay you posted that msg at 5.30pm.... given up already.....??? I have to drive to Gatwick at 8pm - hopefully back by 10'ish - may set up then if still looks clear...
Title: Re: Could it be, yet another near perfect night???..................
Post by: Rocket Pooch on Dec 22, 2009, 19:29:42
Gatwick been there too much recently........
Title: Re: Could it be, yet another near perfect night???..................
Post by: Fay on Dec 22, 2009, 20:26:17
Well, I know John. I was only planning on the Moon with 6" & I haven't got a dew shield for it. Up early in the morning
Title: Re: Could it be, yet another near perfect night???..................
Post by: MarkS on Dec 23, 2009, 09:36:15

Went out last night to do Orion Neb + Running Man Neb with the ED80. 

Waste of time.  With a 5min exposure at F6 these were the skyglow figures I was getting:
Red: 360 electrons
Green: 540 electrons
Blue: 560 electrons

And that was with a CLS filter!  It is the brightest I've ever measured on a moonless night.
Anyway, I captured 3 hours of very noisy data.  The Peltier cooling on the Canon 350D (though hardly needed) behaved flawlessly again, at a very gentle setting of -8C.

Mark
Title: Re: Could it be, yet another near perfect night???..................
Post by: Ian on Dec 23, 2009, 09:42:54
Quote from: Space Dog on Dec 22, 2009, 19:29:42
Gatwick been there too much recently........

Me too...

It's OK if you like Costa Coffee. You're screwed if you don't.
Title: Re: Could it be, yet another near perfect night???..................
Post by: JohnP on Dec 23, 2009, 11:12:05
Better than Starbucks anyway....

Flights delayed so didn't get back till gone 11 - too knackered to set up.... :-(