Gum 15

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Gum 15
Emission nebula
Potw1444a.jpg
Wide-field image of Gum 15 with the Wide Field Imager on the MPG/ESO 2.2-meter telescope at the La Silla Observatory
Observation data: J2000 epoch
Right ascension 08h 43m 52.5s [1]
Declination −41° 14 39 [1]
DesignationsBRAN 176, GRS G261.60 +00.90, RCW 32
See also: Lists of nebulae

Gum 15 is a nebula from the Gum catalog, located in the constellation of Vela, about 3,000 light-years from Earth. [2] It is shaped by aggressive winds flowing from the stars within and around it. [3] The bright star in the center of the nebula is HD 74804, a double star. [4]

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Vela Molecular Ridge is a molecular cloud complex in the constellations Vela and Puppis. Radio 12CO observations of the region showed the ridge to be composed of several clouds, each with masses 100,000–1,000,000 M. This cloud complex lies on the sky in the direction of the Gum Nebula (foreground) and the Carina–Sagittarius Spiral Arm (background). The most important clouds in the region are identified by the letters A, B, C and D, and in fact belong to two different complexes: the clouds A, C and D are located at an average distance of about 700-1000 parsecs and are related to the OB association Vela R2, while cloud B is located at a greater distance, up to 2000 parsecs away, and is physically connected to the extended Vela OB1 association.

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RCW 34 - H II region and the emission nebula located in the constellation Vela. It is located approximately 22,000 light years from Earth. Named after Australian astronomer Colin Stanley Gum.

<span class="mw-page-title-main">HD 73882</span> Eclipsing binary system in constellation Vela

HD 73882 is a visual binary system with the components separated by 0.6″ and a combined spectral class of O8. One of stars is an eclipsing binary system. The period of variability is listed as both 2.9199 days and 20.6 days, possibly due to the secondary being a spectroscopic binary star.

References

  1. 1 2 "Gum 15". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 4 November 2014.
  2. "Astronomers Zoom in on Star-Forming Region Gum 15 | Sci.News". 2 July 2014.
  3. "Scarlet and Smoke". www.eso.org. European Southern Observatory. Archived from the original on 24 September 2015. Retrieved 4 November 2014.
  4. "Hd 74804".