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NGC 2441

Coordinates: Sky map 07h 51m 54.772s, +73° 00′ 56.42″
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NGC 2441
NGC 2441 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationCamelopardalis
Right ascension07h 51m 54.772s [1]
Declination+73° 00′ 56.42″[1]
Redshift0.01157[1]
Heliocentric radial velocity3450 km/s[1]
Distance180 million ly[2]
Group or clusterNGC 2523 Group
Apparent magnitude (B)12.7[1]
Characteristics
TypeSBc[1]
Size~117,900 ly (36.14 kpc) (estimated)[3]
Apparent size (V)2.633 x 1.159 arcmin[1]
Other designations
IRAS 07460+7308, 2MASX J07515477+7300564, UGC 4036, MCG +12-08-015, PGC 22031, CGCG 331-017

NGC 2441 is a barred spiral galaxy located in the northern constellation of Camelopardalis.[2] Its velocity with respect to the cosmic microwave background is 3492 ± 2 km/s, which corresponds to a Hubble distance of 168.0 ± 11.8 Mly (51.51 ± 3.61 Mpc).[3] In addition, 16 non-redshift measurements give a distance of 176.16 ± 16.80 Mly (54.012 ± 5.151 Mpc).[4] The galaxy was discovered by German astronomer Wilhelm Tempel on 8 August 1882.[5]

According to A.M. Garcia, NGC 2441 is a member of the NGC 2523 galaxy group (also known as LGG 154).[6] This group contains five galaxies, including NGC 2523, NGC 2550A, UGC 4041, and UGC 4199.

One supernova has been observed in NGC 2441. SN1995E (type Ia, mag. 15)[7] was discovered by Alessandro Gabrielcic on 20 February 1995, and observations suggested it may display a light echo, where light from the supernova is reflected from matter along our line of sight, making it appear to "echo" outwards from the source.[2]

  • In this Hubble Space Telescope image of NGC 2441, supernova SN1995E is the white spot within the red circle.
    In this Hubble Space Telescope image of NGC 2441, supernova SN1995E is the white spot within the red circle.

See also

References

  1. ^ a b c d e f g "Search Results for NGC 2441". simbad.u-strasbg.fr/simbad/. SIMBAD. Retrieved 25 June 2014.
  2. ^ a b c "A curious supernova in NGC 2441". ESA/Hubble Picture of the Week. ESA/Hubble. Retrieved 25 June 2014.
  3. ^ a b "Results for object NGC 2441". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 17 November 2024.
  4. ^ "Distance Results for NGC 2441". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 17 November 2024.
  5. ^ Seligman, Courtney. "NGC 2441". Celestial Atlas. Retrieved 17 November 2024.
  6. ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
  7. ^ "SN SN1995E". Transient Name Server. IAU. Retrieved 17 November 2024.
  • Media related to NGC 2441 at Wikimedia Commons
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