PC Only With Location of Cepheids Marked
Hubble observed the spiral galaxy NGC 4603, located about 120 million light years away from Earth in the constellation Centaurus. The goal of this observation was to study Cepheid variable stars, of which about 40 were found in the galaxy. The positions of four Cepheid stars are marked on the picture.
Cepheids are 4-20 times more massive than the Sun and 100 000 times more luminous. As their luminosity and pulsation period are connected to each other they are used as to measure the distance of galaxies. Due to their immense luminosity this is possisble out to large distances.
NASA & ESA
About the Image
|Release date:||25 May 1999, 17:00|
|Size:||740 x 740 px|
About the Object
|Name:||Cepheids, IRAS 12382-4042, NGC 4603|
|Type:||• Local Universe : Star : Type : Variable|
• Local Universe : Galaxy : Type : Spiral
• X - Galaxies Images/Videos
Colours & filters
|555 nm||Hubble Space Telescope|
|814 nm||Hubble Space Telescope|