Bar in spiral galaxy NGC 2903 (WFPC2)

This colourful image, obtained by the Wide Field and Planetary Camera 2 (WFPC2) onboard the NASA/ESA Hubble Space Telescope, shows a close-up of the barred spiral galaxy NGC 2903. The galaxy bears a close resemblance to our Milky Way, which is also believed to be a barred spiral galaxy. Huge dust lanes appearing dark in the image and lots of young stars gathered in hot blue clusters, are sprinkled all over the spiral arms. Barred spirals are excellent laboratories with which to study the processes that trigger star formation. An international group of astronomers has used Hubble to study how the galaxys bar (seen as the reddish glow running diagonally through the image) feeds material to form new stars near the centre. The newly born stars show up partly in a so-called circumnuclear ring around the bright yellowish core of the galaxy and partly as bright star clusters (white knots in the circumnuclear ring). The image was combined from three separate exposures in visible light lasting 820 seconds. The red part of the image was exposed through a 820 nm filter, the green through a 520 nm filter and the blue through a 331 nm filter. Acknowledgements: The data that went into this Hubble image were originally obtained by: John Trauger (Jet Propulsion Laboratory), John Hoessel (University of Wisconsin  Madison), Richard Griffiths (Carnegie Mellon University), Dave Crisp (Jet Propulsion Laboratory), John Clarke (University of Michigan), Christopher Burrows (Space Telescope Science Institute), J. Westphal (California Institute of Technology), Jeff Hester (Arizona State University), Jeremy Mould (National Optical Astronomy Observatories, AURA) and Jon Holtzman (New Mexico State University).

Credit:

About the Image

Id:heic0102a
Type:Observation
Release date:27 February 2001, 15:00
Related releases:heic0102
Size:1478 x 1502 px

About the Object

Name:IRAS 09293+2143, NGC 2903
Type:• Local Universe : Galaxy : Type : Spiral
• Local Universe : Galaxy : Type : Barred
• X - Galaxies Images/Videos
Distance:30 million light years

Colours & filters

BandWavelengthTelescope
Ultraviolet
U
331 nm Hubble Space Telescope
WFPC2
Optical
V
520 nm Hubble Space Telescope
WFPC2
Infrared
I
820 nm Hubble Space Telescope
WFPC2

Image Formats

Large JPEG
730.8 KB
Screensize JPEG
292.9 KB

Print Layout

Screensize JPEG
299.3 KB

Wallpapers

1024x768
298.0 KB
1280x1024
480.8 KB
1600x1200
690.2 KB

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