Sharpless 2-235 & PK173+2.1

Emission and Planetary Nebulas in Auriga

Uploaded 12/31/05

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This small but highly detailed emission nebula is part of a quartet of Sharpless nebulosities within a few degrees of sky inside the pentagon of Auriga. Central to this image is the main section of nebulosity which is surrounded by a dimly glowing cloud of hydrogen. Inside it are spectacular viens of dark tendrils of dust giving the entire nebula a mottled texture. On the upper left, the glow represents part of Sharpless 232, a huge object spanning several degrees and banded in appearence. Along the right edge is Sharpless 2-231 a glowing region of hydrogen. Near the bottom center, the "detached" piece of nebulosity was a bonus - a faint PK planetary nearly half an arcminute in size. This planetery has a more orange appearance than the ruddy nebula. Finally you can see in this image a small reflection nebula to the lower left edge of the main nebula.
Instrument: 12.5" f/5 Home made Newtonian Platform: Astrophysics 1200 QMD CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling Guider: SBIG ST4 Exposure: Ha+LRGB = 120:20:20:20 (RGB Binned 2x2) RGB Combine Ratio: 1: 1.05: 1.11 Filters: AstroDon RGB Tricolor Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing FWHM = 5 arcsec (Maxim DL - 10min subframe), Transparency 9/10 Outside Temperature: 35 F CCD Temperature: -30 C Processing Tools: Maxim DL, Gralaks Sigma, Photoshop, PixInsight, CCDOps Debloomer. HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS


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