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.
Créditos:ESO
Sobre a imagem
Id: | eso9921a |
Tipo: | Observação |
Data de divulgação: | 6 de Março de 1999 |
Notícias relacionadas: | eso9921 |
Tamanho: | 2071 x 2044 px |
Sobre o objeto
Nome: | NGC 2997 |
Tipo: | Local Universe : Galaxy : Type : Spiral |
Distância: | 140 milhão anos-luz |
Constellation: | Antlia |
Categoria: | Galaxies |
Papéis de parede
Coordenadas
Position (RA): | 9 45 38.82 |
Position (Dec): | -31° 11' 28.86" |
Field of view: | 3.43 x 3.38 arcminutes |
Orientação: | O norte está a 0.0° à esquerda da vertical |
Cores e filtros
Banda | Comprimento de onda | Telescópio |
---|---|---|
Óptico B | 440 nm | Very Large Telescope FORS1 |
Óptico V | 557 nm | Very Large Telescope FORS1 |
Óptico R | 655 nm | Very Large Telescope FORS1 |