A close look at Betelgeuse

Image of the supergiant star Betelgeuse obtained with the NACO adaptive optics instrument on ESO’s Very Large Telescope. The use of NACO combined with a so-called “lucky imaging” technique, allowed the astronomers to obtain the sharpest ever image of Betelgeuse, even with Earth’s turbulent, image-distorting atmosphere in the way. The resolution is as fine as 37 milliarcseconds, which is roughly the size of a tennis ball on the International Space Station (ISS), as seen from the ground. The image is based on data obtained in the near-infrared, through different filters. The field of view is about half an arcsecond wide, North is up, East is left.

Kilde:

ESO and P. Kervella

Om bildet

ID:eso0927b
Type:Observasjon
Publiseringsdato:29. juli 2009
Relaterte pressemeldinger:eso0927
Størrelse:1230 x 1230 px

Om objektet

Navn:Betelgeuse
Type:Milky Way : Star : Evolutionary Stage : Red Giant
Avstand:650 lysår
Kategori:Stars

Bildeformater

Stor JPEG
79,5 KB
Medium JPEG
46,2 KB

Skrivebordsbakgrunner

1024x768
53,9 KB
1280x1024
75,9 KB
1600x1200
104,4 KB
1920x1200
126,1 KB
2048x1536
157,7 KB

Farger og filtre

BåndBølgelengdeTeleskop
Infrarødt
NB_1.04
1.04 μmVery Large Telescope
NACO
Infrarødt
NB_1.08 (He I)
1.083 μmVery Large Telescope
NACO
Infrarødt
NB_1.09 (P_gamma)
1.094 μmVery Large Telescope
NACO
Infrarødt
NB_1.24
1.237 μmVery Large Telescope
NACO
Infrarødt
NB_1.26 [Fe II]
1.257 μmVery Large Telescope
NACO
Infrarødt
NB_1.28 (P_beta)
1.282 μmVery Large Telescope
NACO
Infrarødt
NB_1.64 [Fe II]
1.644 μmVery Large Telescope
NACO
Infrarødt
NB_1.75
1.748 μmVery Large Telescope
NACO
Infrarødt
NB_2.12 (H2 (1-0) S(1))
2.122 μmVery Large Telescope
NACO
Infrarødt
NB_2.17 (Br_gamma)
2.166 μmVery Large Telescope
NACO

 

Se også