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Arp Peculiar Object Number 135 - Elliptical Galaxy With Nearby Fragment
NGC 1023 (PGC 10123, and with PGC 10139 = Arp 135)
Discovered (Oct 18, 1786) by William Herschel
A magnitude 9.4 lenticular galaxy (type E/SB0(rs)?) in Perseus (RA 02 40 24.1, Dec +39 03 48)
Historical Identification: Per Dreyer, NGC 1023 (= GC 575, JH 242, WH I 156, 1860 RA 02 31 39, NPD 51 32.5) is "very bright, very large, very much extended, most very much brighter middle".
Physical Information: Apparent size 7.3 by 2.5 arcmin. One of the nearest 'early-type' galaxies, with an almost unnoticeable low-surface brightness irregular companion on its eastern side, leading to its designation as Arp 135. Used by the Arp Atlas as an example of an elliptical galaxy (NGC 1023) with a nearby fragment (PGC 10139). Used by the de Vaucouleurs Atlas of Galaxy Types as an example of galaxy type SB0-.
"Excerpt courtesy of Courtney Seligman"
cseligman.com/text/atlas/ngc10.htm#1023
Image... Cherryvalley Observatory (I83). Telescope: 0.2-m SCT & SBIG STL-1301E CCD Camera @f7.6. Image Scale 2.17 arcsec/pixel, Field of View 46 x 37 arcmins. Combined Stack of seven images of 180 seconds each R-Bessel filter and unbinned. CCD operating temperature: -35 degrees. Image acquisition and processing: CCD Soft v5, TheSky6 Professional and Mira Pro v7. October 12th 2014.
Dr. Halton Arp originally compiled the Atlas of peculiar galaxies with photographs he made mainly using the Palomar 200-inch telescope and the 48-inch Schmidt telescope between the years 1961 to 1966. Original image can be found here: ned.ipac.caltech.edu/level5/Arp/Figures/big_arp135.jpeg
Arp Peculiar Object Number 135 - Elliptical Galaxy With Nearby Fragment
NGC 1023 (PGC 10123, and with PGC 10139 = Arp 135)
Discovered (Oct 18, 1786) by William Herschel
A magnitude 9.4 lenticular galaxy (type E/SB0(rs)?) in Perseus (RA 02 40 24.1, Dec +39 03 48)
Historical Identification: Per Dreyer, NGC 1023 (= GC 575, JH 242, WH I 156, 1860 RA 02 31 39, NPD 51 32.5) is "very bright, very large, very much extended, most very much brighter middle".
Physical Information: Apparent size 7.3 by 2.5 arcmin. One of the nearest 'early-type' galaxies, with an almost unnoticeable low-surface brightness irregular companion on its eastern side, leading to its designation as Arp 135. Used by the Arp Atlas as an example of an elliptical galaxy (NGC 1023) with a nearby fragment (PGC 10139). Used by the de Vaucouleurs Atlas of Galaxy Types as an example of galaxy type SB0-.
"Excerpt courtesy of Courtney Seligman"
cseligman.com/text/atlas/ngc10.htm#1023
Image... Cherryvalley Observatory (I83). Telescope: 0.2-m SCT & SBIG STL-1301E CCD Camera @f7.6. Image Scale 2.17 arcsec/pixel, Field of View 46 x 37 arcmins. Combined Stack of seven images of 180 seconds each R-Bessel filter and unbinned. CCD operating temperature: -35 degrees. Image acquisition and processing: CCD Soft v5, TheSky6 Professional and Mira Pro v7. October 12th 2014.
Dr. Halton Arp originally compiled the Atlas of peculiar galaxies with photographs he made mainly using the Palomar 200-inch telescope and the 48-inch Schmidt telescope between the years 1961 to 1966. Original image can be found here: ned.ipac.caltech.edu/level5/Arp/Figures/big_arp135.jpeg