Images of the silhouette disc and the bipolar reflection Nebula

Collection of images of the silhouette disc and, perpendicular to that, the bipolar reflection nebula of a young, massive star in M 17. These images were obtained in different optical and near-infrared wavebands with different instruments: EMMI at the ESO New Technology Telescope on La Silla (top row; wavelengths 0.45 [B-band], 0.55 [V-band], 0.8 µm [I-band], respectively) and ISAAC at the ESO Very Large Telescope on Cerro Paranal (bottom row; 1.25 [J], 1.65 [H] and 2.2 µm [K]). All images are centred on the central massive protostar and cover an area of 30 x 30 square arcsec, corresponding to 1.0 x 1.0 square light-years at the distance of M 17 (about 7,000 light-years). The obscuration diminishes with increasing wavelength and the background emission of the H II region becomes more and more evident (represented by entirely black colours at K).

Crediti:

ESO

Riguardo l'immagine

Identificazione:eso0416e
Tipo:Osservazione
Data di rilascio:12 Maggio 2004
Notizie relative:eso0416
Grandezza:895 x 599 px

Riguardo all'oggetto

Nome:Messier 17
Tipo:Milky Way : Star
Milky Way : Nebula : Type : Star Formation
Distanza:5500 Anni luce
Categoria:Nebulae

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Colori e filtri

BandaLunghezza d'ondaTelescopio
Ottico
B
450 nmNew Technology Telescope
EMMI
Ottico
V
550 nmNew Technology Telescope
EMMI
Infrarosso
I
800 nmNew Technology Telescope
EMMI
Infrarosso
J
1.25 μmVery Large Telescope
ISAAC
Infrarosso
H
1.65 μmVery Large Telescope
ISAAC
Infrarosso
K
2.2 μmVery Large Telescope
ISAAC