White Dwarf Stars in M4
A Hubble Space Telescope colour image of a small portion of the cluster only 0.63 light-years across reveals eight white dwarf stars among the cluster's much brighter population of yellow sun-like stars and cooler red dwarf stars.
Hubble reveals a total of 75 white dwarfs in one small area within M4, out of the total of about 40, 000 white dwarfs that the cluster is predicted to contain.
Credit:
About the Image
NASA press release
NASA caption
NASA caption
| Id: | opo9532c |
| Type: | Observation |
| Release date: | 28 August 1995, 06:00 |
| Size: | 408 x 457 px |
About the Object
| Name: | M 4, Messier 4, NGC 6121 |
| Type: | • Milky Way : Star : Grouping : Cluster : Globular • Star Clusters Images/Videos |
| Distance: | 5500 light years |
Colours & filters
| Band | Wavelength | Telescope |
| Ultraviolet U |
336 nm | Hubble Space Telescope WFPC2 |
| Optical V |
555 nm | Hubble Space Telescope WFPC2 |
| Infrared I |
814 nm | Hubble Space Telescope WFPC2 |
