Galaxy NGC 488

NGC 488
NGC 488: Galaxy in Pisces; 500 mm Cassegrain f/7.2; SBIG STL11K; 310-70-70-70 min LRGB; Bernese Highlands; © 2015 Radek Chromik

History

The galaxy NGC 488 was discovered on December 13, 1784 by the German-British astronomer William Herschel with his self-made 18.7 inch f/12.8 reflector telescope in Bath, England. On December 6, 1850, the engineer Bindon Stoney roamed the 72 inch reflector telescope in Birr Castle, Ireland «Leviathan» of his employer William Parsons, the 3rd Earl of Rosse this region of the starry sky and came across the small galaxies NGC 486, NGC 490, NGC 492 and NGC 500. [196, 277]

Physical Properties

The galaxy NGC 488 shows a redshift of z ≈ 0.0075, which corresponds to a distance of about 29.3 Mpc to 30.5 Mpc. NGC 490 shows a similar redshift of z ≈ 0.0074. NGC 486, NGC 492 and NGC 500 show a much higher redshift of z ≈ 0.04, which suggests a much greater distance. [145]

«Catalogue of Principal Galaxies (PGC)», Paturel et al. 1989 [144]
NameRA [hms]Dec [dms]mTypeDim [']Btot [mag]HRV [km/s]PA [°]
NGC 48801 21 47.0+05 15 17S R5.4 x 3.911.2226715
NGC 49001 22 02.9+05 22 15S.7 x .615.52225
NGC 48601 22 05.9+05 23 40S.3 x .315.5
NGC 49201 22 05.9+05 24 41SB.7 x .615.4
NGC 50001 22 41.9+05 23 40E.8 x .615.0

Finder Chart

The galaxy is located in the constellation Pisces. The best time to observe is December to June, when it is highest at night.

Chart NGC 488
Chart created using SkySafari 6 Pro and STScI Digitized Sky Survey. [149, 160]

References

144Catalogue of Principal Galaxies (PGC); Paturel G., Fouque P., Bottinelli L., Gouguenheim L.; Astron. Astrophys. Suppl. Ser. 80, 299 (1989); cdsarc.unistra.fr/viz-bin/cat/VII/119 (2021-02-18)
145SIMBAD astronomical database; simbad.u-strasbg.fr/simbad
149SkySafari 6 Pro, Simulation Curriculum; skysafariastronomy.com
160The STScI Digitized Sky Survey; archive.stsci.edu/cgi-bin/dss_form
196Celestial Atlas by Curtney Seligman; cseligman.com/text/atlas.htm (2020-12-28)
277«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; klima-luft.de/steinicke (2021-02-17)