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.
Źródło:ESO
O zdjęciu
Identyfikator: | eso9921a |
Typ: | Obserwacje |
Data publikacji: | 6 marca 1999 |
Powiązane komunikaty: | eso9921 |
Rozmiar: | 2071 x 2044 px |
O obiekcie
Nazwa: | NGC 2997 |
Typ: | Local Universe : Galaxy : Type : Spiral |
Odległość: | 140 milion lat świetlnych |
Constellation: | Antlia |
Kategoria: | Galaxies |
Współrzędne
Pozycja (RA): | 9 45 38.82 |
Pozycja (Dec): | -31° 11' 28.86" |
Pole widzenia: | 3.43 x 3.38 arcminutes |
Orientacja: | North is 0.0° lewo of vertical |
Kolory i filtry
Pasmo | Długość fali | Teleskop |
---|---|---|
Optyczny B | 440 nm | Very Large Telescope FORS1 |
Optyczny V | 557 nm | Very Large Telescope FORS1 |
Optyczny R | 655 nm | Very Large Telescope FORS1 |