32 31 30 29 28 27 26 25 24




IC 417 Spider Nebula in Auriga

RA = 5 hrs 27 min; Dec = 34 deg 25 min.

Date & Site:

Imaged on 11/5/2012; Runningman Observatory, Carlsbad

Conditions: calm; 65 degrees; excellent seeing


Telescope: TEC 140 F7 Refractor (fl= 980)
Mount: Losmandy G-11 with Gemini
Camera: ST-10XME; CFW10; externally guided


Exposures: 2 hrs of Ha (6 nm) and 30 min each RGB for a total of 3.5 hours.

FOV = 35 x 52 arc minutes

This is a bright emission nebula in Auriga that resembles a spider. I chose this object as first light for a new OTA to image from the backyard as a test to see if the mount can handle the additional weight and external guider. Both tests passed.

The hydrogen within this nebula is ionized by stars in the open cluster Stock 8. The two bright stars to the right are Phi Aur (mag 5.2) and TYC 02411-0684 1 (mag 5.9).

IC 417 is approximately 10,000 light years away

Back to Images