Cepheid Variable Star in Galaxy M100
This sequence of images taken with the Hubble Space Telescope chronicles the rhythmic changes in a rare class of variable star (located in the center of each image) in the spiral galaxy M100. This class of pulsating star is called a Cepheid Variable. The Cepheid in this Hubble picture doubles in brightness (24.5 to 25.3 apparent magnitude) over a period of 51.3 days.
Credit:
About the Image
NASA press release
NASA caption
NASA caption
| Id: | opo9449b |
| Type: | Observation |
| Release date: | 26 October 1994, 19:00 |
| Size: | 800 x 600 px |
About the Object
| Name: | Messier 100 |
| Type: | • Local Universe : Star : Type : Variable • Local Universe : Galaxy : Type : Spiral |
| Distance: | 50 million light years |
Colours & filters
| Band | Telescope |
| Optical | Hubble Space Telescope WFPC2 |
