Dwarf galaxy Antlia

True-colour image of the dwarf galaxy Antlia combined from three exposures with the FORS1 multi-mode instrument at VLT UT1, in the B (blue), V (green) and R (red) optical bands. Many background galaxies are seen in the field. The total exposure times were 2400 sec, 2400 sec and 5400 sec, respectively. The seeing varied between 0.5 and 0.7 arcsec. The field measures about 7 x 7 arcmin 2. North is up and East is left. Very high quality images of Antlia were obtained in different colours by FORS1 on VLT UT1 in the period 27 - 31 January 1999. These data were taken around full moon, so they do not show as faint stars as they would under normal FORS operating conditions, but the image quality is exceptional. They represent by far the best images ever obtained of this galaxy, and they include the first deep B-band images.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso9920a
Tipo:Osservazione
Data di pubblicazione:27 Febbraio 1999
Notizie relative:eso9920, eso9913
Dimensione:1200 x 1196 px

A proposito delll'oggetto

Nome:Antlia Dwarf Galaxy
Tipo:Local Universe : Galaxy : Size : Dwarf
Distanza:4 Milione Anni luce
Constellation:Antlia
Categoria:Galaxies

Formati delle immagini

JPEG grande
1,2 MB

Sfondi

1024x768
671,3 KB
1280x1024
1,1 MB
1600x1200
1,4 MB
1920x1200
1,5 MB
2048x1536
2,0 MB

Coordinate

Position (RA):10 4 4.02
Position (Dec):-27° 20' 0.57"
Field of view:4.01 x 3.99 arcminutes
Orientazione:Il Nord è a 180.1° a destra della verticale

Colori e filtri

BandaLunghezza d'ondaTelescopio
Ottico
B
440 nmVery Large Telescope
FORS1
Ottico
V
557 nmVery Large Telescope
FORS1
Ottico
R
655 nmVery Large Telescope
FORS1