Nebulae near the hot binary star BAT99-49 in the LMC

The nebula around the hot double star BAT99-49 in the Large Magellanic Cloud (LMC), obtained in January 2002 with the FORS1 multi-mode instrument at the 8.2-m VLT MELIPAL telescope at the Paranal Observatory (Chile). It is based on three exposures through narrow-band optical (interference) filters that isolate the light from specific atoms and ions. In this rendering, the blue colour represents the light from singly ionized Helium (He II; wavelength 468.6 nm; exposure time 45 min), green corresponds to doubly ionized oxygen ([O III]; 495.7 + 500.7 nm; 5 min) and red to hydrogen atoms (H; H-alpha line at 656.2 nm; 5 min). Of these three ions, He II is the tracer of high excitation, i.e. the bluest areas of the nebula are the hottest. The sky field measures 400 x 400 square arcsec ; the original pixel size on the 2k x 2k CCD is 0.23 arcsec. North is up and east to the left.

Herkunftsnachweis:

ESO

Über das Bild

ID:eso0310c
Typ:Beobachtung
Veröffentlichungsdatum:9. April 2003
Dazugehörige Veröffentlichungen:eso0310
Größe:1914 x 1917 px

Über das Objekt

Name:BAT99-49
Typ:Local Universe : Nebula
Entfernung:180000 Lichtjahre
Constellation:Mensa
Kategorie:Nebulae

Bildformate

Großes JPEG
927,2 KB

Bildschirm-Hintergrundbilder

1024x768
571,2 KB
1280x1024
844,0 KB
1600x1200
1,0 MB
1920x1200
1,1 MB
2048x1536
1,4 MB

Koordinaten

Position (RA):5 29 33.72
Position (Dec):-70° 59' 26.94"
Field of view:6.64 x 6.64 arcminutes
Orientierung:Die Nordrichtung liegt 0.1° rechts zur Vertikale

Farben & Filter

SpektralbereichWellenlängeTeleskop
Optisch
Heii
468 nmVery Large Telescope
FORS1
Optisch
Oiii
500 nmVery Large Telescope
FORS1
Optisch
Oiii
495 nmVery Large Telescope
FORS1
Optisch
H-alpha
656 nmVery Large Telescope
FORS1