Distance Measurements to a Type-Ia Supernova-Bearing Galaxy

This Hubble Space Telescope image shows NGC 4639, a spiral galaxy located 78 million light-years away in the Virgo cluster of galaxies.

The blue dots in the galaxy's outlying regions indicate the presence of young stars. Among them are young, bright stars called Cepheids, which are used as reliable milepost markers to obtain accurate distances to nearby galaxies.

Credit:

Credit: A. Sandage (Carnegie Observatories), A. Saha (Space Telescope Science Institute), G.A. Tammann, and L. Labhardt (Astronomical Institute, University of Basel), F.D. Macchetto and N. Panagia (Space Telescope Science Institute and European Space Agency) and NASA

About the Image

NASA press release
NASA caption
Id:opo9621b
Type:Observation
Release date:9 May 1996, 19:00
Size:1483 x 1505 px

About the Object

Name:IRAS 12403+1331, NGC 4639, Virgo Cluster
Type:• Local Universe : Galaxy : Type : Spiral
• X - Galaxies Images/Videos
Distance:75 million light years
Constellation:Virgo

Colours & filters

BandWavelengthTelescope
Optical
V
555 nm Hubble Space Telescope
WFPC2
Infrared
I
814 nm Hubble Space Telescope
WFPC2

Image Formats

Large JPEG
442.0 KB
Screensize JPEG
160.1 KB

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