Thompson 1 Asterism* in Delphinus

Located at: RA 20 hours 38 minutes 30 seconds, Dec +11 degrees 20 minutes 00 seconds

Size: 5.7'; Magnitude: --; Class: Asterism

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56
Image:

Lumicon Red filter, 400 minutes  (40 x 10 minute subs), 11/1/2/2009; seeing 2.8-5.8 FWHM per CCDStack
Processing:

CCDStack 1.6.0.5, Photoshop 7.0
Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)
Notes:* Shot this object based on The Sky & Telescope Deep Sky Wonders column by Sue French ("Splashing Around the Dolphin", October 2009, pages 61-64). From Canadian amateur John Thompson. Another image from a full moon period to utilize all available clear sky time