From Wikipedia, the free encyclopedia
NGC 4361
Emission nebula
Planetary nebula
NGC 4361 imaged with a 24-inch telescope
Observation data: J2000 epoch
Right ascension12h 24m 30.8s [1]
Declination−18° 47′ 5.6″ [1]
Distance3,377.2±153.6 [1]  ly
Apparent magnitude (V)10.9 [2]
Apparent dimensions (V)1.3' x 1.3' [2]
Constellation Corvus [3]
DesignationsNGC 4361, PN G294.1+43.6
See also: Lists of nebulae
NGC 4361 imaged in infrared by the Spitzer Space Telescope

NGC 4361 is a planetary nebula in the constellation of Corvus. [3] [1] [2] It is included in the Astronomical League's Herschel 400 Observing Program.

Central star

NGC 4361's central star is an extremely hot [WC] Wolf-Rayet type star. Its temperature is at 270,000 K, [4] hotter than every classical Wolf–Rayet star known, and it is the hottest known non-neutron star. It is nearly 18,000 times brighter than the Sun, but is only 6.1% its size. This star left the asymptotic giant branch between 5776 and 8018 years ago. [4]


  1. ^ a b c d "NGC 4361 -- Planetary Nebula". Simbad Astronomical Database. Universite de Strasbourg. Retrieved 6 May 2019.
  2. ^ a b c "Planetary Nebula NGC 4361". Telescopius. Retrieved 6 May 2019.
  3. ^ a b Stefan Rumistrzewicz (1 November 2010). A Visual Astronomer's Photographic Guide to the Deep Sky: A Pocket Field Guide. Springer Science & Business Media. pp. 158–. ISBN  978-1-4419-7242-2.
  4. ^ a b González-Santamaría, I.; Manteiga, M.; Manchado, A.; Ulla, A.; Dafonte, C. (2019-10-01). "Properties of central stars of planetary nebulae with distances in Gaia DR2". Astronomy & Astrophysics. 630: A150. doi: 10.1051/0004-6361/201936162. ISSN  0004-6361.

External links

  • Media related to NGC 4361 at Wikimedia Commons