NGC 6894
NGC 6894 is small (40 arc-sec), fairly dim (vmag 12.3) planetary nebula in the constellation Cygnus. A magnitude 14 star is visible in the northwest. Its central (vmag 17.6) star is just barely visible in the image below.
Image was taken June 20, 2006 at 07:07 UT from Louisville, CO with Celestron Nexstar11 telescope, F3.3 focal reducer, and Stellacam II video camera at 9/14 gain, integrate 128, gamma medium. Aprox 150 images acquired in 10 minutes were dark subtracted, flat field and bias corrected. Aligned and stacked with Registax3. Sky was partly cloudy, temperature was 64°F, 40% humidty, transparency was good, turbulence was 5/10.
June 22nd, 2006 at 10:16 am
Could you see the neb through the eye piece or were you just able to pull the structure out through processing?.Regardless,that is a nice shot!.
Clear skies!
June 22nd, 2006 at 12:04 pm
I didn’t try to view it visually through an eyepiece, too light polluted here to see a dim fuzzy like this one directly. I’ll maybe try that this weekend at FoxPark if the skies clear up. The nebula was easy to see on the notebook screen while I was taking the images, but not the central star. I apparently screwed up taking the flat fields, amp-glow in the upper left is noticable in all images I took that evening.
June 22nd, 2006 at 1:47 pm
I processed the heck out of the Cats eye neb.It came out pretty nice but,if you don’t mind,I would like to send you the processed image (via e-mail).I am worried that I have over processed it.I have seen the Hubbles image but,I need a human eye to give me a idea about what I have done wrong/right and I trust your judgement.I won’t be able to send it right away because,I need to step out.Perhaps later this afternoon?.
June 22nd, 2006 at 2:34 pm
Looking forward to seeing your image!
December 6th, 2006 at 8:21 pm
[…] NGC 6894 is located in the constellation Cygnus and is aprrox 4000 light yrs away with a visual mag of +12.3.One site that I visited while searching for info on this neb,compared it to the size of Jupiter.Well,I don’t know if I believe that but,I will definitely say “it is extremely small”!!!. Vern over at Verns Astronomy Weblog has a really nice shot of it…..check it out,you won’t be disapointed!!. […]