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.

Autorska prava:

ESO

O slici

Id:eso1741a
Tip:Opservacija
Datum objavljivanja:20. decembar 2017. 19:00
Povezana saopštenja:eso1741
Veličina:2000 x 2000 px

O objektu

Naziv:HD 212087, π1 Gruis
Tip:Milky Way : Star : Evolutionary Stage : Red Giant
Constellation:Grus
Kategorija:Stars

Formati slika

Veliki JPEG
166,3 KB

Zumiranje


Wallpapers

1024x768
61,6 KB
1280x1024
83,1 KB
1600x1200
111,3 KB
1920x1200
131,6 KB
2048x1536
159,0 KB

Koordinate

Position (RA):22 22 44.21
Position (Dec):-45° 56' 52.61"
Field of view:0.01 x 0.01 arcminutes
Orijentacija:Sever je -0.0°levo od vertikale

Boje i flteri

OpsegTalasna dužinaTeleskop
Infracrveni
H
1.625 μm Very Large Telescope Interferometer
PIONIER
Infracrveni
H
1.678 μm Very Large Telescope Interferometer
PIONIER
Infracrveni
H
1.73 μm Very Large Telescope Interferometer
PIONIER
Infracrveni
H
1.678 μm Very Large Telescope Interferometer
PIONIER
Infracrveni
H
1.625 μm Very Large Telescope Interferometer
PIONIER

 

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