IC 417 (Sh2-234) / Stock 8 (Lund 178, OCL-436) Emission Nebula / Open Cluster in Auriga

Located at: RA 05 hours 28 minutes 17 seconds, Dec +34 degrees 25 minutes 00 seconds

Size: 13' x 8.5' / 5.0' (15') Magnitude: -- / -- Class: Emission (Sharpless) 3 2 3 / I 3 m n

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -30c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 220 minutes (22 x 10 minute subs), 01/12/2007

Processing:

CCDStack 1.1, Photoshop 7.0

Location:

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

Notes:

This image replaces an unfiltered 90 minute Track & Accumulate image from 01/7/2006. The IC 417 nebula surrounds, and trails to the east (left) of open cluster Stock 8, which is the dense group of stars to the east (left) of the bright 5.1 magnitude star near the center (Phi Aurigae, 24 Aur, 5.1 mag). The N-S 'fan' from the bright star is caused by the Hoya filter. See the 14.5" version.

According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of open cluster Stock 8 is 15 arc minutes.

From the NGC / IC Project:

NO Contemporary Visual Observation(s) for IC 417