EtaCarinae

Författare/Upphovsman:

Nathan Smith (University of California, Berkeley), and NASA

Kreditera:

File:Eta Carinae.jpg and File:Etacarinae-001.jpg

Kort länk:

https://sewiki.info/b/3957d

Källa:

Wikimedia Commons

Upplösning:

2000 x 2000 Pixel (1048641 Bytes)

Beskrivning:

A huge, billowing pair of gas and dust clouds are captured in this stunning NASA Hubble Space Telescope image of the supermassive star Eta Carinae. Eta Carinae was observed by Hubble in September 1995 with the Wide Field and Planetary Camera 2 (WFPC2). Images taken through red and near-ultraviolet filters were subsequently combined to produce the color image shown. A sequence of eight exposures was necessary to cover the object's huge dynamic range: the outer ejecta blobs are 100,000 times fainter than the brilliant central star. Eta Carinae suffered a giant outburst about 160 years ago, when it became one of the brightest stars in the southern sky. Though the star released as much visible light as a supernova explosion, it survived the outburst. The explosion produced two lobes and a large, thin equatorial disk, all moving outward at about 1 million kilometers per hour.

Licens:

Public domain