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White Dwarf
The dense, hot core left behind after a low- or intermediate-mass star expels its outer layers. White dwarfs are composed mostly of electron-degenerate matter and no longer undergo fusion.
Source: chandra.harvard.edu
APODs including "White Dwarf"
M27: The Dumbbell Nebula
02/11/2016
The Helix Nebula in Infrared
20/09/2016
M2-9: Wings of a Butterfly Nebula
24/07/2016
The Rise and Fall of Supernova 2015F
Video
09/02/2016
Cygnus: Bubble and Crescent
04/12/2015
The Medusa Nebula
12/06/2015
Globular Star Cluster 47 Tuc
19/05/2015
NGC 2440: Pearl of a New White Dwarf
17/05/2015
MyCn18: An Hourglass Planetary Nebula
10/05/2015
Cataclysmic Dawn
11/01/2015
M27: The Dumbbell Nebula
14/09/2014
No X-rays from SN 2014J
16/08/2014
SN 1006 Supernova Remnant
12/07/2014
Planetary Nebula Abell 36
30/05/2014
Bright Supernova in M82
24/01/2014
Naked Eye Nova Centauri 2013
07/12/2013
Planetary Nebula Abell 7
05/12/2013
M2-9: Wings of a Butterfly Nebula
15/09/2013
Nova Delphini 2013
16/08/2013
Kepler's Supernova Remnant in X-Rays
15/05/2013
X-rays from Supernova Remnant SN 1006
23/04/2013
NGC 1365: Majestic Spiral with Supernova
24/11/2012
Planetary Nebula PK 164 +31.1
30/10/2012
The Red Spider Planetary Nebula
29/10/2012
The Medusa Nebula
25/10/2012
Spherical Planetary Nebula Abell 39
08/10/2012
The Helix Nebula from the VISTA Telescope
31/01/2012
NGC 6369: The Little Ghost Nebula
14/01/2012
The Case of the Missing Supernova Companion
12/01/2012
M27: The Dumbbell Nebula
27/12/2011