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
About the Object
| Name: | M 4, Messier 4, NGC 6121 |
|---|---|
| Type: | Milky Way : Star : Grouping : Cluster : Globular |
| Distance: | 5500 light years |
| Constellation: | Scorpius |
| Category: | Star Clusters |
Coordinates
| Position (RA): | 16 23 40.48 |
|---|---|
| Position (Dec): | -26° 30' 43.77" |
| Field of view: | 0.31 x 0.35 arcminutes |
| Orientation: | North is 35.1° left of vertical |
View in ESASky:
View in WorldWide Telescope:
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 |