NGC 1931, IC 417, Sharpless 2-237
NGC 1931 and IC 417 are found in the northern constellation Auriga - a region where star clusters and nebulae abound.
An imaginative eye toward the expansive IC 417 (to the right) and diminutive NGC 1931 (to the left) suggests a cosmic spider and fly.
About 10,000 light-years distant, both open star clusters are young, formed in interstellar clouds, and still embedded in glowing hydrogen gas. The more compact NGC 1931 is about 10 light-years across, with contrasting blue hues characteristic of reflected starlight.
NGC 1931 is a mixed emission-reflection nebula with a core of young white-hot stars. The nebulosity is listed as Sharpless 2-237. At its center are four stars in a Trapezium-like configuration. For this reason, NGC 1931 has been referred to as a "miniature version of the Orion Nebula".
[Description from SkySafariPro]
Acquired the nights of Feb 16 and 20, 2015
L: 16 x 1200s
R,G,B: 8 x 600s each
Total exposure time: 9.3 hours
Main Camera: QSI 583 WSG
Guide Camera: SXV Lodestar (on OAG)
Mount: Astro-Physics Mach 1
Scope: Stellarvue SV100Q (effective FL: 580mm)
Image Aquisition software MaximDL
Registed, Calibrated and Stacked and Post Processed with PixInsight 1.8
