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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"
The Dumbbell Nebula in Hydrogen and Oxygen
13/01/2003
NGC 6369: The Little Ghost Nebula
08/11/2002
Accretion Disk Simulation
27/09/2002
X-Rays From Tycho's Supernova Remnant
12/09/2002
Nebula Nova Cygni Turns On
25/08/2002
Henize 3-401: An Elongated Planetary Nebula
31/07/2002
IC 4406: A Seemingly Square Nebula
18/06/2002
MyCn18: An Hourglass Nebula
15/06/2002
X-Ray Milky Way
10/01/2002
M2-9: Wings of a Butterfly Nebula
06/01/2002
The Center of Globular Cluster Omega Centauri
10/10/2001
Hen 1357: New Born Nebula
06/10/2001
The Making of the Rotten Egg Nebula
03/09/2001
NGC 2440: Cocoon of a New White Dwarf
05/08/2001
The Red Spider Planetary Nebula
24/07/2001
X-Ray Stars of 47 Tucanae
24/05/2001
M27: The Dumbbell Nebula
06/03/2001
Resolving Mira
21/01/2001
M2-9: Wings of a Butterfly Nebula
17/12/2000
BZ Cam Bow Shock
28/11/2000
Globular Cluster Omega Centauri
15/10/2000
X-Rays From Sirius B
06/10/2000
White Dwarf Stars Cool
10/09/2000
The Helix Nebula from CFHT
28/08/2000
Unusual Giant Galaxy NGC 1316
16/08/2000
NGC 2440: Cocoon of a New White Dwarf
30/07/2000
Shapley 1: An Annular Planetary Nebula
25/06/2000
Sirius: The Brightest Star in the Night
11/06/2000
MyCn18: An Hourglass Nebula
04/06/2000
M4: The Closest Known Globular Cluster
23/05/2000