The surface of the red giant star π1 Gruis from PIONIER on the VLT

Astronomers using ESO’s Very Large Telescope have directly observed granulation patterns on the surface of a star outside the Solar System — the ageing red giant π1 Gruis. This remarkable new image from the PIONIER instrument reveals the convective cells that make up the surface of this huge star. Each cell covers more than a quarter of the star’s diameter and measures about 120 million kilometres across.

Të drejtat:

ESO

Rreth fotografisë

Id:eso1741a
Tipi:Vëzhgim
Data e Publikimit:Dhj 20, 2017, 19:00 CET
Publikime të ngjashme:eso1741
Përmasat:2000 x 2000 px

Rreth objektit

Emri:HD 212087, π1 Gruis
Tipi:Milky Way : Star : Evolutionary Stage : Red Giant
Constellation:Grus
Kategori:Stars

Formate Fotografish

JPEG i madh
166,3 KB

E zmadhueshme


Wallpaper

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159,0 KB

Koordinatat

Position (RA):22 22 44.21
Position (Dec):-45° 56' 52.61"
Field of view:0.01 x 0.01 arcminutes
Orientimi:Veriu është -0.0° majtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Infra të kuqe
H
1.625 μm Very Large Telescope Interferometer
PIONIER
Infra të kuqe
H
1.678 μm Very Large Telescope Interferometer
PIONIER
Infra të kuqe
H
1.73 μm Very Large Telescope Interferometer
PIONIER
Infra të kuqe
H
1.678 μm Very Large Telescope Interferometer
PIONIER
Infra të kuqe
H
1.625 μm Very Large Telescope Interferometer
PIONIER

 

Shih dhe