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Image Data
Designation |
NGC 1313, Bennett 13 |
Object type |
Spiral galaxy |
Coordinates |
03 h 18 min
- 66° 30' Reticulum (Ret) |
Description |
In
visible light, NGC 1313 seems dominated by scattered patches of star
formation which give our picture a rather ragged appearance. The
clouds of bluish stars seem to have burst into existence at random,
without the normal trigger gravitational interaction or even a distinct
spiral to prompt them. Star formation seems to have occurred in a
series of irregular, self-sustaining bursts. However, a very
deep image shows that the outer parts of galaxy are also very
disturbed.
Seen with a radio telescope, the galaxy is rich in hydrogen, the raw
material of stars, and the gas circulates around the centre of the galaxy
in a well ordered way, apparently hardly affected by the starburst
activity or other irregularities that so colour our visual impression of
this unusual galaxy. NGC 1313 is at a distance of about 15 million
light years, close enough for some of its brightest stars to be seen as
individuals.
Entry from NGC 2000.0 (R.W. Sinnott, Ed.) © Sky
Publishing Corporation, 1988.
Click here or on the
image for a 1600 pixel screen resolution. North is towards the
bottom (180°) in this 25 x 37 arcmin field of
view.
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Exposure |
NRGB 160:80:80:80 min @ -20°C,
all exposures unbinned |
Camera |
SBIG STL-11000M selfguided with
AO-L (first light) + Astronomik Type II filterset |
Optics |
RCOS 14.5" Ritchey-Chrétien
@ f/9
(prime focus) |
Mount |
Astro-Physics AP1200GTO |
Software |
MaxIm DL/CCD, Sigma Pre
Beta 11, Registar,
Adobe
Photoshop CS |
Location - Date - Time |
San Esteban (Chile) - 22Oct2006 @
07:00 UTC |
Conditions |
Transparency 6/10, Seeing 6/10, Temperature
+ 12° C |
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