NGC 246 (PK118-74.1) Planetary Nebula in Cetus

Located at: RA 00 hours 47 minutes 04 seconds, Dec -11 degrees 52 minutes 20 seconds

Size: 4.1'; Magnitude: 8.0 photographic; Class: 3b

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 150 minutes (15 x 10 minute subs), 12/12/2006

Processing:

CCDStack 1.1, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: This image was hard to process because of an early evening round of high clouds. The clouds were not thick enough to stop the auto guiding, but they caused very uneven gradients in over half of the images in the sequence. Since this was the only shot I had at NGC 246 this season, I decided to try processing the sequence