Spiral galaxy NGC 2997
This is a three-colour 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.
Crédit:ESO
À propos de l'image
Identification: | eso9921a |
Type: | Observation |
Date de publication: | 6 mars 1999 |
Communiqués de presse en rapport: | eso9921 |
Taille: | 2071 x 2044 px |
À propos de l'objet
Nom: | NGC 2997 |
Type: | Local Universe : Galaxy : Type : Spiral |
Distance: | 140 million années lumière |
Constellation: | Antlia |
Catégorie: | Galaxies |
Fonds d'écran
Coordinates
Position (RA): | 9 45 38.82 |
Position (Dec): | -31° 11' 28.86" |
Field of view: | 3.43 x 3.38 arcminutes |
Orientation: | North is 0.0° left of vertical |
Couleurs & filtres
Domaine | Longueur d'onde | Télescope |
---|---|---|
Visible B | 440 nm | Very Large Telescope FORS1 |
Visible V | 557 nm | Very Large Telescope FORS1 |
Visible R | 655 nm | Very Large Telescope FORS1 |