Astronomy:Blue Ring Nebula

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Blue Ring Nebula
Nebula
Composite image of the Blue Ring Nebula.
Observation data: J2000[1] epoch
Right ascension16h 48m 37.41s
Declination+35° 12' 09.44"
Distance6,300 ly
ConstellationHercules
See also: Lists of nebulae

The Blue Ring Nebula is a cosmic object located approximately 6,300 light years away in the constellation Hercules.[2] It was formed when two stars merged, creating a debris cloud that eventually cooled down and produced hydrogen molecules that collided with the interstellar medium. The collisions made the molecules radiate far-ultraviolet light, allowing GALEX to discover the object in 2004.[3] The merging of the two stars resulted into a new star designated as TYC 2597-735-1.[4][5]

References

  1. ↑ "TYC 2597-735-1". CDS. https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TYC+2597-735-1&submit=SIMBAD+search. 
  2. ↑ "Blue Ring Nebula". Caltech. https://www.galex.caltech.edu/media/glx2020-01r_img01.html. 
  3. ↑ "The Blue Ring Nebula". NASA. https://www.jpl.nasa.gov/images/pia23867-the-blue-ring-nebula/. 
  4. ↑ Günther, Hans Moritz; Hoadley, Keri; Günther, Maximilian N.; Metzger, Brian D.; Schneider, P. C.; Shen, Ken J. (April 2022). "X-Ray Emission from Candidate Stellar Merger Remnant TYC 2597-735-1 and Its Blue Ring Nebula". The Astronomical Journal 163 (4): 173. doi:10.3847/1538-3881/ac54a2. Bibcode: 2022AJ....163..173G. 
  5. ↑ "The dazzling Blue Ring Nebula puzzled scientists for 16 years — and now they finally understand why". Space.com (Future plc). 18 November 2020. https://www.space.com/16-year-mystery-blue-ring-nebula-solved.