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Hen 3-401

From Wikipedia, the free encyclopedia
Hen 3-401
Nebula
BERJAYA
Hen 3-401 imaged by Hubble Space Telescope
Observation data: J2000 epoch
Right ascension10h 19m 32.501s
Declination-60° 13' 29.48"
Distance10,000 ly
Apparent magnitude (V)12.5
ConstellationCarina
DesignationsHenize 3-401, IRAS 10178-5958, PK 285-02 2, PN G285.1-02.7[1]
See also: Lists of nebulae

Hen 3-401 (Henize 3-401) is an elongated planetary nebula located approximately 10,000 light years away in the constellation Carina. It is classified to be a bipolar nebula, as seen from its cylindrical jets. The nebula was discovered by astronomers Karl G. Henize, N. Sanduleak and C. B. Stephenson.[2][3][4]

The central star in Hen 3-401 is a Be star with a temperature of 22,000 K. which suggest that the nebula might actually be a protoplanetary nebula.[2]

References

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  1. "Hen 3-401". SIMBAD. CDS. Retrieved 2 August 2026.
  2. 1 2 Muthumariappan, C. (10 February 2006). "Subarcsecond Mid-Infrared Imaging of Dust in the Bipolar Nebula Hen 3-401". The Astrophysical Journal. 640 (1): 353–359. doi:10.1086/500041. Retrieved 2 August 2026.
  3. "Henize 3-401: An Elongated Planetary Nebula". Astronomy Picture of the Day. NASA. Retrieved 2 August 2026.
  4. "A glimpse into the heart of a dying star". ESA/Hubble. European Space Agency. Retrieved 2 August 2026.