Portals
A-Z
Categories
Random
John Vanbrugh
Charles Barkley
Herrerasaurus
F-105 Thunderchief
Flag of the Philippines
Terri Schiavo
Dakota, Minnesota and Eastern Railroad
Yotsuya Kaidan
The Fairy-Queen
William Edington
edit page
history/authors
discussion

Tarantula Nebula




Tarantula Nebula

The Tarantula Nebula
taken by the Spitzer space telescope
Observation data: J2000 epoch
TypeEmission
Right ascension05h 38m 38s[1]
Declination-69° 05.7′[1]
Distance179 kly (49 kpc)[2]
Apparent magnitude (V)+8[2]
Apparent dimensions (V)40′ × 25′[2]
ConstellationDorado
Physical characteristics
Radius500 ly
Absolute magnitude (V)?
Notable featuresIn LMC
Other designationsNGC 2070[2]
Doradus Nebula,[1] Dor Nebula[1]
See also: Diffuse nebula, Lists of nebulae
This box: view  talk  edit

The Tarantula Nebula (also known as 30 Doradus, or NGC 2070) is an H II region in the Large Magellanic Cloud. It was originally thought to be a star, but in 1751 Nicolas Louis de Lacaille recognized its nebular nature.

Central region of the Tarantula Nebula — a mosaic of 15 Hubble images. Credit: NASA/ESA.
Central region of the Tarantula Nebula — a mosaic of 15 Hubble images. Credit: NASA/ESA.

The Tarantula Nebula has an apparent magnitude of 8. Considering its distance of about 160,000 light years, this is an extremely luminous object. Its luminosity is so bright that if it were as close to Earth as the Orion Nebula, the Tarantula Nebula would cast shadows. In fact, it is the most active starburst region known in the Local Group of galaxies. The nebula resides on the leading edge of the LMC, where ram pressure stripping, and the compression of the interstellar medium likely resulting from this, is at a maximum. At its core lies the extremely compact cluster of stars - R136a - that produces most of the energy that makes the nebula visible.

The closest supernova since the invention of the telescope, Supernova 1987A, occurred in the outskirts of the Tarantula Nebula.

See also the star cluster in Tarantula catalogued as Hodge 301.

[edit] External links

[edit] References

  1. ^ a b c d SIMBAD Astronomical Database. Results for Tarantula Nebula. Retrieved on 2006-12-22.
  2. ^ a b c d SEDS Students for the Exploration and Development of Space. Results for Tarantula Nebula. Retrieved on 2007-05-08.

Copyright © 2009. Knowledgehunter.
Other Links:
Wissen im Web
Shopping 0nline
Dictionary of Meaning