HST Image of Hot Blue Stars at the Core of M15
A NASA/ESA Hubble Space Telescope (HST) image of the center of globular cluster M15 reveals anew population of about 15 very hot stars isolated at the core.
The most likely explanation for their existence is that they are the 'naked cores' of stars that have been stripped of their outer envelope of gas. This could only have happened if stars were so crowded together in the cluster's core they can gravitationally pull material form each other.
Credit:
About the Image
NASA press release
NASA caption
NASA caption
| Id: | opo9313a |
| Type: | Observation |
| Release date: | 9 June 1993, 06:00 |
| Size: | 2616 x 2190 px |
About the Object
| Name: | M 15, Messier 15, NGC 7078 |
| Type: | • Milky Way : Star : Grouping : Cluster : Globular • Star Clusters Images/Videos |
| Distance: | 35000 light years |
Colours & filters
| Band | Telescope |
| Optical | Hubble Space Telescope WFPC1 |
