Bright clusters and nebulae abound in the ancient northern constellation of Auriga.
An imaginative eye toward the expansive IC 417 and diminutive NGC 1931 suggests a cosmic spider and fly. About 10,000 light-years distant, both represent young, open star clusters formed in interstellar clouds and still embedded in glowing hydrogen gas. For scale, the more compact NGC 1931 is about 10 light-years across.
Imaging telescopes or lenses: Williams Optics Megrez 72
Imaging cameras: Starlight Xpress SXVR-H9
Mounts: Sky-Watcher HEQ5 PRO
Guiding telescopes or lenses: Williams Optics Megrez 72
Guiding cameras: Starlight Xpress CoStar
Focal reducers: William Optics FF/FR VI
Software: PixInsight 1.8, PHD guiding, Nebulosity 3, EQMac
Filters: Astrodon Ha 5nm
Accessories: Starlight Xpress Mini Filter wheel
Dates: Feb. 16, 2014, Feb. 21, 2014
Frames: Astrodon Ha 5nm: 18×1800″ -20C
Integration: 9.0 hours
AstroPhotography of the day by SPONLI
28 April 2014