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Barred spiral galaxy in the constellation Eridanus
NGC 1154 is a barred spiral galaxy located in the constellation Eridanus. It lies approximately 200 million light-years (62.26 Mpc) away from Earth. The galaxy was discovered by the American astronomer Francis Preserved Leavenworth on December 2, 1885.
Characteristics
NGC 1154 is classified as an SB(rs)b galaxy, indicating that it is a barred spiral galaxy with a somewhat ring-like structure. It has an apparent magnitude of 13.6, making it relatively faint and observable primarily with large telescopes.
Distance and position
Distance: ~200 million light-years (62.26 Mpc)
- Right Ascension: 02h 56m 38.6s
- Declination: −10° 21′ 47″
NGC 1154's coordinates place it within the celestial sphere of the constellation Eridanus, a region known for hosting numerous galaxies.
Possible interaction with NGC 1155
NGC 1154 is in close proximity to the galaxy NGC 1155, with which it may be interacting. A faint bridge of material appears to connect the two galaxies, suggesting tidal forces may be at play.
Observation history
NGC 1154 was discovered by Francis Leavenworth in 1885 as part of his deep-sky surveys. Modern observations have been carried out by surveys such as the Pan-STARRS and Sloan Digital Sky Survey (SDSS).
Supernova
One supernova has been observed in NGC 1154: SN 2011jp (type II-P, mag. 15.5) was discovered by Greg Bock on 27 December 2011.
References
^ "NGC 1154". SIMBAD Astronomical Database. Retrieved June 30, 2024.
Image of NGC 1154 from the Pan-STARRS survey
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