Astronomy:NGC 5641

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Short description: Galaxy in the constellation of Boötes
NGC 5641
NGC5641 - SDSS DR14.jpg
SDSS image of NGC 5641
Observation data (J2000 epoch)
ConstellationBoötes
Right ascension 14h 29m 16.6s[1]
Declination+28° 49′ 18.7″[1]
Redshift0.01440[1]
Helio radial velocity4286 km/s[1]
Galactocentric velocity4384 km/s[2]
Distance196 ± 14 Mly
(60.1 ± 4.2 Mpc)[2]
Apparent magnitude (V)13.0[2]
Absolute magnitude (V)-20.9[nb 1]
Characteristics
Type(R')SAB(r)ab [2]
Apparent size (V)2.4' x 1.1'[2]
Other designations
UGC 9300, MCG+05-34-055, PGC 51758[1][3]

NGC 5641 is a type Sb-barred spiral galaxy[4] in the constellation of Boötes, registered in New General Catalogue (NGC).[1] It is located five degrees east of NGC 5466.[4]

Observation history

NGC 5641 was discovered by Édouard Stephan on 4 June 1880. John Louis Emil Dreyer inside the New General Catalogue, described the galaxy as "pretty bright, pretty small, a little extended, much brighter middle, mottled but not resolved?"[3] It was described in Burnham's Celestial Handbook as "pretty bright, pretty small, slightly elongated and much brighter in the middle".[5] Walter Scott Houston also noted that this galaxy was missed by William Herschel. He wrote "although NGC 5641 is only 2' long, this should not have been a problem for Herschel observing at 157x."[5]

Notes

  1. ↑ Calculated from Galactocentric GSR Distance modulus[2]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "NGC 5641". SIMBAD. http://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC+5641&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "Results for object NGC 5641". NASA/IPAC Extragalactic Database. https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=38076&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1. 
  3. ↑ 3.0 3.1 Seligman, Courtney. "NGC 5641 (= PGC 51758)". Seligman website. https://cseligman.com/text/atlas/ngc56.htm. 
  4. ↑ 4.0 4.1 Gilmour, Jess K. (2003). "Bootes". The Practical Astronomer's Deep-sky Companion. London: Springer London. pp. 17. doi:10.1007/978-1-4471-0071-3_6. ISBN 978-1-85233-474-1. http://link.springer.com/10.1007/978-1-4471-0071-3_6. 
  5. ↑ 5.0 5.1 "NGC 5641". Deep Sky Observer's Companion – the online database. http://www.docdb.net/show_object.php?id=ngc_5641. 

Coordinates: Sky map 14h 29m 16.6s, +28° 49′ 18.7″



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