NGC 1343

Last updated
NGC 1343
NGC 1343 PanS.jpg
Image NGC 1343 by Pan-STARRS
Observation data (J2000 epoch)
Constellation Cassiopeia
Right ascension 03h 37m 50s [1]
Declination 72° 34′ 16″ [1]
Redshift +0,007348 ± 0,000067
Heliocentric radial velocity 2214 km/s
Distance 4,2 ± 0,8 Mpc
Apparent magnitude  (V)12.37 [2]
Apparent magnitude  (B)13.67 [2]
Characteristics
Type SABb [1]
Other designations
UGC 2792, PGC 13384 [2]

NGC 1343 is a peculiar barred spiral galaxy located in the constellation Cassiopeia, with its eastern edge extending slightly into Camelopardalis. The galaxy is notable for its intense starburst activity within its bright blue inner ring, which surrounds a compact core. A faint bar connects to this ring, and subtle spiral arms with visible star clusters extend outward. NGC 1343 is also associated with a faint dwarf companion galaxy and has hosted a recorded supernova event. It was discovered by the German- British astronomer William Herschel on October 17, 1786. Due to its low surface brightness and position behind the Milky Way’s dust, NGC 1343 is relatively faint when observed from Earth. [3] [4] [5] [6]

Contents

Structure and companion galaxy

The nearly circular inner ring is a distinctive feature, likely formed by resonance effects typical in barred galaxies. It shows a slight gap and is connected to the core by a faint bar. [7]

A faint dwarf companion, designated HFLLZOA G134.74+13.65, is located northeast of the core. A possible faint star stream or bridge suggests gravitational interaction, though NGC 1343's disk shows minimal distortion. [8]

Supernova

One supernova has been observed in NGC 1343. SN 2008dv (Type Ic, mag. 18.2) was discovered by Japanese astronomer Kōichi Itagaki on 1 July 2008. [9] [10] [11]

References

  1. 1 2 3 "The Sky Live". NGC 1343 - Intermediate Spiral Galaxy in Camelopardalis. Retrieved 2025-04-27.
  2. 1 2 3 "In-The-Sky.org". NGC1343 (Galaxy). Retrieved 2025-04-27.
  3. ↑ "New General Catalog Objects: NGC 1300 - 1349". cseligman.com. Retrieved 2025-10-01.
  4. ↑ "NGC 1343 A Very Peculiar Galaxy that's "Nearby" - Experienced Deep Sky Imaging". Cloudy Nights. Retrieved 2025-10-01.
  5. ↑ "By Name | NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2025-10-01.
  6. ↑ "NGC 1343 - Galaxia - SKY-MAP". www.sky-map.org. Retrieved 2025-10-01.
  7. ↑ "NGC 1343 A Very Peculiar Galaxy that's "Nearby" - Experienced Deep Sky Imaging". Cloudy Nights. Retrieved 2025-10-01.
  8. ↑ "NGC 1343 A Very Peculiar Galaxy that's "Nearby" - Experienced Deep Sky Imaging". Cloudy Nights. Retrieved 2025-10-01.
  9. ↑ Nakano, S. (2008). "Supernova 2008dv in NGC 1343". Central Bureau Electronic Telegrams (1425): 1. Bibcode:2008CBET.1425....1N.
  10. ↑ "Bright Supernovae - 2008". www.rochesterastronomy.org. Retrieved 2025-10-01.
  11. ↑ "SN 2008dv". Transient Name Server. IAU . Retrieved 2 October 2025.
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