Astronomy: General

A Dictionary of Astronomy A Dictionary of Astronomy A Dictionary of Astronomy Further reading

Eta Carinae Nebula

A Dictionary of Astronomy | 1997 | Copyright

Eta Carinae Nebula The bright diffuse nebula NGC 3372 in Carina, about 2° across, containing numerous stars and clusters. It is divided into two parts by a dark V-shaped lane. At its heart is the variable star Eta Carinae, which is concealed by the smaller Homunculus Nebula. The Eta Carinae Nebula contains the Keyhole Nebula, a smaller dark nebula silhouetted against the brighter background near Eta Carinae. Its distance is about 7500 l.y.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"Eta Carinae Nebula." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"Eta Carinae Nebula." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-EtaCarinaeNebula.html

"Eta Carinae Nebula." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-EtaCarinaeNebula.html

Learn more about citation styles

Homunculus Nebula

A Dictionary of Astronomy | 1997 | Copyright

Homunculus Nebula A cloud of gas and dust that obscures the star Eta Carinae, with a shape thought by early observers to resemble a small human. Its dimensions are about 17″ × 12″. The material was ejected by the star in 1843 and is now expanding at about 500 km/s. The nebula hides the star from view, and reradiates much of the absorbed energy at infrared wavelengths.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"Homunculus Nebula." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"Homunculus Nebula." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-HomunculusNebula.html

"Homunculus Nebula." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-HomunculusNebula.html

Learn more about citation styles

Keyhole Nebula

A Dictionary of Astronomy | 1997 | Copyright

Keyhole Nebula A dark nebula in the brightest part of the Eta Carinae Nebula, named by J. F. W.Herschel from its keyhole shape. It lies next to the star Eta Carinae itself. The name Keyhole Nebula is sometimes applied to the whole Eta Carinae Nebula.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"Keyhole Nebula." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"Keyhole Nebula." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-KeyholeNebula.html

"Keyhole Nebula." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-KeyholeNebula.html

Learn more about citation styles

Free newspaper and magazine articles

	Strange star is suddenly, inexplicably getting brighter; Eta Carinae, a star... Newspaper article from: Star Tribune (Minneapolis, MN); 6/3/1999
	The (-est).(Brief article) Magazine article from: Science News; 8/16/2008
	PLENTY OF SPACE OUT THERE; The widest picture 'ever'.(News) Newspaper article from: The Mirror (London, England); 4/25/2007