NGC672 & IC1727

Galaxy Pair in Triangulum

Uploaded 11/27/12

Select an image size for a larger view: 800 x 600 1290 x 960 1600 x 1200
This stunning duet in the constellation of Triangulum is often overshadowed by other brighter galaxies in this part of the sky. Going beyond the usual fare that everyone seems to spend all their time on for the hundredth time, I concentrated on this fine pair. NGC672 is a 11.5 magnitude inclined spiral, type SB which as you can clearly see here in the larger images sports some fine pink HII regions. Its companion, IC1727 is much fainter at 12.1 magnitude and is of low surface brightness in the arms which do not have any discernible HII. The cute little edge on galaxy is much more remote as you can see by its deep yellow color from intergalactic reddening. This 16th magnitude anonymous galaxy is only 1 arc minute in size and beyond the visual realm with this same instrument.
Instrument: 12.5" f/5 Home made Newtonian Mount: Astrophysics 1200 QMD CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling Guider: Meade DSI Pro w/Lumicon Newt Easy Guider Exposure: LRGB = 60:20:20:20 AstroDon RGB Combine Ratio: 1: 1.05: 1.2 Location: Payson, Arizona, Elevation: 5150 ft. Sky: Seeing FWHM = 5 arcsec , Transparency 9/10 Outside Temperature: 45 F CCD Temperature: -20 C Image Processing Tools: Maxim DL: Calibration, deblooming (Starizona Debloomer), aligning, stacking PixInsight: Curves, Deconvolution Photoshop CS2: Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS