Why so blue?

The colour blue has many associations — coldness, sadness, serenity. However, the colour holds a completely different meaning for astronomers, as demonstrated by the edge-on spiral galaxy Messier 98.

Messier 98, also known as NGC 4192, is located approximately 50 million light-years away in the constellation of Coma Berenices (Berenice's Hair). In this spectacular image from ESO’s New Technology Telescope (NTT), the galaxy’s perimeter, rippled with gas and dust, is dotted with pockets of blueish light. These are regions filled with very young stars, which are so hot that they glow with a bright blue hue. These young stars are burning at such high temperatures that they are emitting fierce radiation, burning away some of the dense material that surrounds them. In total, Messier 98 is thought to contain one trillion stars!

The NTT is a 3.58-metre telescope at the La Silla Observatory, which pioneered the use of active optics and was the first in the world to have a computer-controlled main mirror.

Autorska prava:

ESO
Acknowledgements: Flickr user jbarring

O slici

Id:potw1636a
Tip:Opservacija
Datum objavljivanja:5. septembar 2016. 06:00
Veličina:1020 x 850 px

O objektu

Naziv:Messier 98, NGC 4192
Tip:Local Universe : Galaxy : Type : Spiral
Udaljenost:50 milion svetlosnih godina
Constellation:Coma Berenices
Kategorija:Galaxies

Formati slika

Veliki JPEG
258,9 KB

Zumiranje


Wallpapers

1024x768
219,4 KB
1280x1024
333,3 KB
1600x1200
468,1 KB
1920x1200
559,3 KB
2048x1536
694,1 KB

Koordinate

Position (RA):12 13 48.77
Position (Dec):14° 54' 7.97"
Field of view:7.48 x 6.23 arcminutes
Orijentacija:Sever je 90.9°levo od vertikale

 

Takođe pogledajte