HST PHAT wide image of M31
This image is 7,900 light-years across and reveals the Andromeda galaxy's crowded central region. The bright area near the centre of the image is a grouping of stars nestled around the galaxy's black hole. The blue dots sprinkled throughout the image are ultra-blue stars whose population increases around the crowded hub. The blue stars are old Sun-like stars that have prematurely cast off their outer layers of material, exposing their extremely blue-hot cores.
Credit:
About the Image
About the Object
| Name: | Andromeda Galaxy, M 31, Messier 31, NGC 224 |
| Type: | • Local Universe : Galaxy : Component : Center/Core • Galaxies Images/Videos |
Colours & filters
| Band | Wavelength | Telescope |
| Ultraviolet U |
336 nm | Hubble Space Telescope WFC3 |
| Optical g |
336 nm | Hubble Space Telescope ACS |
| Infrared I |
814 nm | Hubble Space Telescope ACS |
| Infrared I |
814 nm | Hubble Space Telescope WFC3 |
