Galaxy in Cetus

Uploaded 12/9/04

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 This bright galaxy has a brilliant core region, surrounded by a very faint blue halo of material. At 9.6 magnitude and a huge 8 arc minutes across, this ranks as one of the best galaxies in the sky to shoot. However as usual there is a catch - situated at the celestial equator in Cetus, it is often too low in the horizon haze to photograph satisfactorily. At our latitude of 34N, this is not a problem, and M77 rides high on the meridian on cold December evenings. There are two other interesting objects in this field of note. To the right of the galaxy near the edge is MAC 0241+0000, a inclined spiral of 16th magnitude. Just to the upper left near the bright orange star is MAC 0243+0005, a 17.0 magnitude object that is inclined to our line of sight as well.
Instrument: 12.5" f/5 Home made Newtonian Platform: Astrophysics 1200 QMD CCD Camera: SBIG ST8i NABG with Enhanced Cooling Guider: SBIG ST4 Exposure: LRGB = 60:20:20:40 (RGB Binned 2x2) RGB Combine Ratio: 1: .8: 1.2 Filters: RGB Tricolor Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing FWHM = 5.0 arcsec (Maxim DL - 10min subframe), Transparency 8/10 Outside Temperature: -5 C CCD Temperature: -20 C Processing Tools: Maxim DL, Photoshop, AIP4WIN, PW Pro, RW Debloomer, PixInsight HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS


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