NGC2770 - HST - Potw2001a
Imposter or the Real Deal? Imposter or the Real Deal?
This Picture of the Week, taken by the NASA/ESA Hubble Space Telescope, shows a close-up view of a galaxy named NGC 2770. NGC 2770 is intriguing, as over time it has hosted four different observed supernovae (not visible here).
Supernovae form in a few different ways, but always involve a dying star. These stars become unbalanced, lose control, and explode violently, briefly shining as brightly as an entire galaxy before slowly fading away.
One of the four supernovae observed within this galaxy, SN 2015bh, is especially interesting. This particular supernova initially had its identity called into question. When it was first discovered in 2015, astronomers classified SN 2015bh as a supernova imposter, believing it to be not an exploding star but simply an unpredictable outburst from a massive star in its final phase of life. Thankfully, astronomers eventually discovered the truth and the object was given its correct classification as a Type II supernova, resulting from the death of a star between eight and 50 times the mass of the Sun.
Credit:
ESA/Hubble & NASA, A. Filippenko
Coordinates Position (RA): 9 9 34.38 Position (Dec): 33° 7' 19.30" Field of view: 2.65 x 2.47 arcminutes Orientation: North is 16.1° right of vertical
Colours & filters Band Wavelength Telescope Optical V 555 nm Hubble Space Telescope WFC3 Optical B 438 nm Hubble Space Telescope WFC3 Optical r 625 nm Hubble Space Telescope WFC3 Optical I 814 nm Hubble Space Telescope WFC3.
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
Notes:
|
- Dieses Werk darf von dir
- verbreitet werden – vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden
- neu zusammengestellt werden – abgewandelt und bearbeitet werden
- Zu den folgenden Bedingungen:
- Namensnennung – Du musst angemessene Urheber- und Rechteangaben machen, einen Link zur Lizenz beifügen und angeben, ob Änderungen vorgenommen wurden. Diese Angaben dürfen in jeder angemessenen Art und Weise gemacht werden, allerdings nicht so, dass der Eindruck entsteht, der Lizenzgeber unterstütze gerade dich oder deine Nutzung besonders.
Relevante Bilder
Relevante Artikel
NGC 2770NGC 2770 ist eine Spiralgalaxie vom Typ Sc und liegt im Sternbild Luchs, die schätzungsweise 85 Millionen Lichtjahre von der Milchstraße entfernt ist. Westlich von NGC 2770 liegt das Galaxienpaar NGC 2770A mit einer visuellen Helligkeit von 15,2 mag. .. weiterlesen