Credit & Copyright: Robert Gendler
Explanation:
This intriguing trio of galaxies is sometimes
called the NGC 5985/Draco Group
and so (quite reasonably) is located in the northern
constellation
Draco.
From left to right are
face-on spiral NGC 5985,
elliptical galaxy NGC 5982, and
edge-on spiral NGC 5981 --
all within this single
telescopic
field of view spanning a little more than
half the width of the full moon.
While this grouping is far too small to be a
galaxy cluster
and has not been
cataloged
as a compact group,
these galaxies do lie roughly 100 million light-years from planet Earth.
On close examination with spectrographs, the bright core of the
striking face-on spiral NGC 5985 shows
prominent emission in specific wavelengths of light, prompting astronomers
to classify it as a
Seyfert, a type of active galaxy.
Not as well known as other tight
groupings of galaxies,
the contrast in
visual
appearance makes this triplet an attractive subject for
avid astrophotographers.
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Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr' |
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Publikacii s klyuchevymi slovami:
Seifertovskaya galaktika - Seyfert galaxy - NGC 5892 - NGC 5985 - NGC 5981
Publikacii so slovami: Seifertovskaya galaktika - Seyfert galaxy - NGC 5892 - NGC 5985 - NGC 5981 | |
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