Ribbons and pearls

This week’s picture shows spectacular ribbons of gas and dust wrapping around the pearly centre of the barred spiral galaxy NGC 1398. This galaxy is located in the constellation of Fornax (The Furnace), approximately 65 million light-years away.

Rather than beginning at the very middle of the galaxy and swirling outwards, NGC 1398’s graceful spiral arms stem from a straight bar, formed of stars, that cuts through the galaxy’s central region. Most spiral galaxies — around two thirds — are observed to have this feature, but it’s not yet clear whether or how these bars affect a galaxy’s behaviour and development.

This image comprises data gathered by the FOcal Reducer/low dispersion Spectrograph 2 (FORS2) instrument, mounted on ESO’s Very Large Telescope (VLT) at Paranal Observatory, Chile. It shows NGC 1398 in striking detail, from the dark lanes of dust mottling its spiral arms, through to the pink-hued star-forming regions sprinkled throughout its outer regions.

This image was created as part of the ESO Cosmic Gems programme, an outreach initiative to produce images of interesting, intriguing or visually attractive objects using ESO telescopes, for the purposes of education and public outreach. The programme makes use of telescope time that cannot be used for science observations. All data collected may also be suitable for scientific purposes, and are made available to astronomers through ESO’s science archive.

Të drejtat:

ESO

Rreth fotografisë

Id:potw1801a
Tipi:Vëzhgim
Data e Publikimit:Jan 1, 2018, 06:00 CET
Përmasat:3416 x 3463 px

Rreth objektit

Emri:NGC 1398
Tipi:Local Universe : Galaxy : Type : Spiral
Distanca:65 milion vite dritë
Constellation:Fornax
Kategori:Galaxies

Formate Fotografish

JPEG i madh
2,6 MB

E zmadhueshme


Wallpaper

1024x768
203,7 KB
1280x1024
317,2 KB
1600x1200
471,3 KB
1920x1200
592,5 KB
2048x1536
793,3 KB

Koordinatat

Position (RA):3 38 51.93
Position (Dec):-26° 20' 13.29"
Field of view:7.17 x 7.27 arcminutes
Orientimi:Veriu është -0.0° majtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Optik
B
440 nmVery Large Telescope
FORS2
Optik
V
557 nmVery Large Telescope
FORS2
Optik
R
655 nmVery Large Telescope
FORS2
Optik
H-alpha
660 nmVery Large Telescope
FORS2