HD 65750

Toby Jug Nebula.

HD 65750 also known as Hip 38834 is a bright red giant star in the constellation Carina surrounded by a prominent reflection nebula,[1][2] known as the Toby Jug Nebula.

Characteristics

At 1,240 light years away, it has an apparent magnitude of 7.06 and a metallicity just 39.8% of the Sun and is part of the Diamond Cluster moving group. It is found in the night sky at RA 7h 56.8m, Dec -59° 7.8' The star has a radial velocity of 20 km/s.[3]

Nebulae

The nebulae is a mystery as the variation in nebulae brightness appear to be unrelated to the host star.[4] One theory is that rather than being an accreting protoplanetary disk the star may be an evolved star that is losing material.[5][6]

References

  1. ↑ http://www.astrostudio.org/xhip.php?hip=38834
  2. ↑ Simbad entry.
  3. ↑ IC 2220 - The Toby Jug Nebula.
  4. ↑ Dachs, J.; Isserstedt, J.; Rahe, J., On the photometric variations of the red giant HD 65750 and of the surrounding reflection nebula IC 2220, Astronomy and Astrophysics, vol. 63, no. 3, Feb. 1978, p. 353-362.
  5. ↑ Humphreys, R. M. & Ney, E. P., Infrared observations of HD 65750, a red giant in a reflection nebula. Astronomy and Astrophysics, (1974) Vol. 30, p. 159 - 160.
  6. ↑ ESO, Garching, Germany A close look at the Toby Jug Nebula. Astronomy magazine October 14, 2013.


This article is issued from Wikipedia - version of the 8/28/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.