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Spiral Galaxy NGC 2997
NGC 2997, ESO 434-G35
Description: Spiral galaxy
Position (J2000): RA 9h 45m 38.82s Dec -31° 11' 28.86"
Distance: 140 million light years
Field of view: 3.43 x 3.38 arcminutes
Apparent Dimensions: 8.9' × 6.8'
Visual magnitude: 10.1
Orientation: North is 0.0° left of vertical
Image Credit: ESO
Release Date: March 6, 1999
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ABOUT THIS IMAGE:
This is a three-color composite of the spiral galaxy NGC 2997 in the southern constellation Antlia (The Air Pump), obtained with the VLT UT1 and FORS1 in the morning of March 5, 1999. It is based on three exposures in V (green; 3 min; image quality 0.35 arcsec), R (red; 3 min; 0.34 arcsec) and I (near-infrared; 5 min; 0.25 arcsec) bands, with the Moon above the horizon. The field measures 3.4 x 3.4 arcmin 2 or, at the distance of the galaxy (about 55 million light-years), 55,000 x 55,000 light-years. FORS1 was operated in high-resolution imaging mode ; the pixel size was 0.1 arsec.
2997 is a face-on unbarred spiral galaxy about 40 million light-years
away in the constellation Antlia. It is the brightest galaxy of the NGC
2997 group of galaxies. It is particularly notable for a nucleus surrounded
by a chain of hot giant clouds of ionized hydrogen.