Abell 4

Planetary Nebula in Perseus

Uploaded 1/1/05

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 This object is extremely faint, however records as a beautiful powder blue color. The star attraction as well is the CGCG edge on galaxy on its north western edge that nearly touches the planetary. While the planetary itslef is quite small at 20 arcseconds, there are some details visible on this night of exceptional seeing. The planetary is 17th magnitude. The field contains hordes of faint galaxies, some of them are very interesting in shape. Most range from 15th magnitude for the "bright" ones, to about 19th for the fainter ones. Below I've highlighted at 100 percent scale some of the more interesting galaxies in this image. If you have the bandwith, please look at the largest image - the number of faint objects is astounding!
CGCG539+91 MAG = 15.6
MAC0244+4234B,4235, 4234A
MAC0244+4237 MAG = 18
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 = 3.5 arcsec (Maxim DL - 10min subframe), Transparency 8/10 Outside Temperature: -5 C CCD Temperature: -20 C Processing Tools: Maxim DL, Photoshop, PW Pro, RW Debloomer, PixInsight. HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS


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