Hubble image archive
White Dwarfs in Globular Cluster M4
This graph shows the relationship between the temperature and brightness of a sampling of stars in the globular cluster M4. The line of dots at upper right represents main-sequence stars, those whose cores are fusing hydrogen. Normal stars like our Sun fall in the middle of this...
- Date
- Jan 1, 2002
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2002-10-1176-image
This graph shows the relationship between the temperature and brightness of a sampling of stars in the globular cluster M4. The line of dots at upper right represents main-sequence stars, those whose cores are fusing hydrogen. Normal stars like our Sun fall in the middle of this line.
The white dwarfs are not part of the main-sequence stars because they have used up their hydrogen fuel. These dying stars are fainter and yet hotter than their main-sequence relatives. NASA's Hubble Space Telescope hunted for the faintest and coolest of the white dwarfs [bottom of white dwarf population.]
Credits
NASA and A. Feild (STScI)Image Details
| About The Object | |
|---|---|
| Object Name | M4, NGC 6121 |
Source
Image and source material are credited to the official mission archive linked below.
View on NASA.gov