Variable stars close to the galactic centre

This image, captured with the VISTA infrared survey telescope, as part of the Variables in the Via Lactea (VVV) ESO public survey, shows the central part of the Milky Way. While normally hidden behind obscuring dust, the infrared capabilities of VISTA allow to study the stars close to the galactic centre.

Within this field of view astronomers detected several ancient stars, of a type known as RR Lyrae. As RR Lyrae stars typically reside in ancient stellar populations over 10 billion years old, this discovery suggests that the bulging centre of the Milky Way likely grew through the merging of primordial star clusters.

Të drejtat:

ESO/VVV Survey/D. Minniti

Rreth fotografisë

Id:eso1636a
Tipi:Vëzhgim
Data e Publikimit:Oct 12, 2016, 12:00 CEST
Publikime të ngjashme:eso1636
Përmasat:15591 x 12672 px

Rreth objektit

Emri:RR Lyr
Tipi:Milky Way : Star : Type : Variable
Constellation:Ophiuchus
Kategori:Stars

Formate Fotografish

Publikim JPEG
9,8 MB

E zmadhueshme


Wallpaper

1024x768
526,9 KB
1280x1024
903,2 KB
1600x1200
1,3 MB
1920x1200
1,6 MB
2048x1536
2,2 MB

Koordinatat

Position (RA):17 43 51.55
Position (Dec):-29° 17' 47.78"
Field of view:88.55 x 71.97 arcminutes
Orientimi:Veriu është 58.6° majtas vertikales

 

Shih dhe