File:IC 755 HST.jpg
Original file (3,928 × 1,807 pixels, file size: 3.87 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionIC 755 HST.jpg |
English: The NASA/ESA Hubble Space Telescope has imaged an elongated stream of stars, gas and dust called IC 755, which is actually a spiral galaxy that we are seeing edge-on.
In 1999 a star within IC 755 was seen to explode as a supernova and named SN 1999an. The supernova was discovered by the Beijing Astronomical Observatory Supernova Survey and three years later Hubble was used to study the environment in which the explosion took place. The inclination of the galaxy made the supernova a challenging target as many other intervening objects obscured the view. Valuable data were obtained and suggest that before detonation the star may have been around 20 times more massive than our Sun, and that it was likely to have been in the region of 14 million years old. Supernovae like SN 1999an are classified as Type IIs and they are dramatic events that mark the end of the lives of massive stars. They have an important role to play in galaxy evolution as many elements are formed during the explosion and are ejected with such force that they are distributed far and wide. Shockwaves also help to mix material within the host galaxy and may spark new rounds of star formation. Billions of stars make up galaxies like IC 755 and many will become supernovae, using their final moments to breathe new life into the rest of the Universe. This picture was created from multiple images taken with the Wide Field Camera of Hubble’s Advanced Camera for Surveys. Exposures through a blue filter (F435W) are coloured blue, exposures through a yellow-green filter (F555W) are coloured green and images through a near-infrared filter (F814W) are shown as red. The total exposure times per filter are 430 s and the field of view is 3.3 x 1.5 arcminutes. Cross Identifications: NGC 4019, IC 755, UGC 7001, MCG 2-31-14, PGC 37912, FGC 1347, IRAS11585 1423, ZWG 69.24 (Revised NGC Data for NGC 4019) |
Date | |
Source | http://www.spacetelescope.org/images/potw1129a/ |
Author | ESA/Hubble & NASA |
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 10:28, 18 July 2011 | 3,928 × 1,807 (3.87 MB) | Jmencisom (talk | contribs) |
You cannot overwrite this file.
File usage on Commons
The following 2 pages use this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on arz.wikipedia.org
- Usage on az.wikipedia.org
- Usage on be.wikipedia.org
- Usage on bn.wikipedia.org
- Usage on ce.wikipedia.org
- Usage on de.wikipedia.org
- Usage on diq.wikipedia.org
- Usage on el.wikipedia.org
- Usage on en.wikipedia.org
- Usage on eo.wikipedia.org
- Usage on eu.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on hr.wikipedia.org
- Usage on ja.wikipedia.org
- Usage on kk.wikipedia.org
- Usage on lb.wikipedia.org
- Usage on mk.wikipedia.org
- Usage on nl.wikipedia.org
- Usage on pl.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on ru.wikipedia.org
- Usage on sk.wikipedia.org
- Usage on sr.wikipedia.org
- Usage on tr.wikipedia.org
- Usage on tt.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on uz.wikipedia.org
- Usage on www.wikidata.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
_error | 0 |
---|