Screwdriverone
15-07-2013, 09:19 PM
Hi Everyone,
What a debarcle I had on Saturday Night, :screwy:
My wife bought me a heater to use out at the scope after last week when I almost froze while imaging....everything was fine and toasty for a bit while I dodged and waited for clouds to clear....
After some pretty mucky subs in a sparse region I decide to point at something bright and selected the Swan/Omega/Checkmark etc.... Every sub came up dim and the previously spot on guiding was going CRACKERS????
I looked up and thought I had some high mist or fog, but the stars were so bright, nope, that wasnt it....??? I checked PHD, BRIGHT stars yet the graph was going nutso??? What the?
Wait a minute.....I realised the scope was pointing West over my table whereas it was previously Southish....hmmmm. I turned off the heater. Whammo, PHD flatlines.....DOH! :rolleyes: heat turbulence ....:sadeyes:
Took some more subs, still crud, can barely see the Swan or the Trifid or anything, checked the sky, no mist, checked the guidescope, that is fine.......o hang on.....looked into the scope......primary OK, secondary is dewed over!......what a SPAZ!!!!!
So I grab the new heater and point it into the Newt to clear the secondary, NOW the primary instantly dews up.....FAR OUT, what a knob I am.....then finally, I put my brain back in, grab the 50mm dew heater on the finder scope and wrap it around the secondary and turn it on full blast....voila.....no dew in 20 seconds.....YAY!!!! Oh wait, the Primary is still fogged up......I wander inside to make a coffee, 3 mins later, I return and the primary is now clear......wonder of wonders!
So, after further 45 (9 x 5) mins of now clear imaging I packed it in as I was freezing again and found myself staring at my new heater, soooo tempted to turn it back on.
Soooo....here is the Swan. :sadeyes:
I'm such a numbnut
Here (https://www.dropbox.com/s/34do286pio99zt2/Omega%20Neb%20ST%20processed.png) is the dropbox version
Cheers
Chris
What a debarcle I had on Saturday Night, :screwy:
My wife bought me a heater to use out at the scope after last week when I almost froze while imaging....everything was fine and toasty for a bit while I dodged and waited for clouds to clear....
After some pretty mucky subs in a sparse region I decide to point at something bright and selected the Swan/Omega/Checkmark etc.... Every sub came up dim and the previously spot on guiding was going CRACKERS????
I looked up and thought I had some high mist or fog, but the stars were so bright, nope, that wasnt it....??? I checked PHD, BRIGHT stars yet the graph was going nutso??? What the?
Wait a minute.....I realised the scope was pointing West over my table whereas it was previously Southish....hmmmm. I turned off the heater. Whammo, PHD flatlines.....DOH! :rolleyes: heat turbulence ....:sadeyes:
Took some more subs, still crud, can barely see the Swan or the Trifid or anything, checked the sky, no mist, checked the guidescope, that is fine.......o hang on.....looked into the scope......primary OK, secondary is dewed over!......what a SPAZ!!!!!
So I grab the new heater and point it into the Newt to clear the secondary, NOW the primary instantly dews up.....FAR OUT, what a knob I am.....then finally, I put my brain back in, grab the 50mm dew heater on the finder scope and wrap it around the secondary and turn it on full blast....voila.....no dew in 20 seconds.....YAY!!!! Oh wait, the Primary is still fogged up......I wander inside to make a coffee, 3 mins later, I return and the primary is now clear......wonder of wonders!
So, after further 45 (9 x 5) mins of now clear imaging I packed it in as I was freezing again and found myself staring at my new heater, soooo tempted to turn it back on.
Soooo....here is the Swan. :sadeyes:
I'm such a numbnut
Here (https://www.dropbox.com/s/34do286pio99zt2/Omega%20Neb%20ST%20processed.png) is the dropbox version
Cheers
Chris