NICMOS finds a golden ring at the heart of a galaxy (NICMOS image)
The revived Near Infrared Camera and Multi-Object Spectrometer (NICMOS) aboard the NASA/ESA Hubble telescope has penetrated the dusty disc of the 'edge-on' galaxy NGC 4013 and looked right into the galactic core. To the surprise of astronomers, NICMOS found a brilliant band-like structure, that may be a ring of newly formed stars [yellow band in photo] seen edge-on.
NICMOS enables the Hubble telescope to see near-infrared wavelengths of light, so that it can penetrate the dust that obscures the inner hub of the galaxy. The ring-like structure seen by NICMOS encircles the core and is about 720 light-years wide, which is the typical size of most star-forming rings found in disc galaxies.
The human eye cannot see infrared light so colours have been assigned to correspond to near-infrared wavelengths. The blue light represents shorter near-infrared wavelengths and the red light corresponds to longer wavelengths.
NGC 4013, which looks similar to our Milky Way Galaxy, resides in the constellation Ursa Major, 55 million light-years from Earth.
This image, taken on 12 May 2002, is a colour composite image that was made by combining photographs taken through J-band, H-band, and Paschen-alpha filters.
Credit:About the Image
| Id: | heic0207f | 
|---|---|
| Type: | Observation | 
| Release date: | 5 June 2002, 15:00 | 
| Related releases: | heic0207 | 
| Size: | 1008 x 1008 px | 
About the Object
| Name: | IRAS 11559+4413, NGC 4013 | 
|---|---|
| Type: | Local Universe : Galaxy : Type : Spiral | 
| Distance: | 60 million light years | 
| Constellation: | Ursa Major | 
| Category: | Galaxies | 
Wallpapers
Coordinates
| Position (RA): | 11 58 31.17 | 
|---|---|
| Position (Dec): | 43° 56' 51.65" | 
| Field of view: | 0.85 x 0.85 arcminutes | 
| Orientation: | North is 5.7° left of vertical | 
Colours & filters
| Band | Wavelength | Telescope | 
|---|---|---|
| Infrared J  | 1.1 μm | 
                
                    
                        Hubble Space Telescope
                    
                    
                         NICMOS  | 
| Infrared H  | 1.6 μm | 
                
                    
                        Hubble Space Telescope
                    
                    
                         NICMOS  | 
| Infrared Pa-alpha  | 1.87 μm | 
                
                    
                        Hubble Space Telescope
                    
                    
                         NICMOS  | 

