Q1147845

galaxy

Key facts

Constellation: Aquila
Right ascension: 19 42 40.6
Declination: −10 ° 19 ′ 25 ″
Redshift: 1563 ± 2 km / s
Distance: 70.6 ± 1.3 Mly (21.65 ± 0.40 Mpc )
Type: SAB(rs)bc
Size: 13.67 kpc (44,570 ly ) ( diameter; D 25 isophote )
Apparent size v: 3.0 ′ × 2.8 ′

via Wikipedia infobox

Wikidata facts

Constellation: Aquila
Distance from Earth: 22.40
Image: A spiral snowflake.jpg

Show 13 more facts

Commons category: NGC 6814
time of discovery or invention: 1788-00-00
discoverer or inventor: William Herschel
catalog code: Gaia DR2 4193315354369607680
apparent magnitude: 7.657
galaxy morphological type: Sbc
redshift: 0.0053
right ascension: 295.66910721059520
declination: -10.32363948163840
radial velocity: 1563
epoch: J2000.0
right ascension component of proper motion: 0.519
declination component of proper motion: -0.094

via Wikidata · CC0

~1 min read

Encyclopedic overview

NGC 6814 is an intermediate spiral galaxy in constellation Aquila. It is located at a distance of about 75 million light years from Earth, which, given its apparent dimensions, means that NGC 6814 is about 45,000 light years across. NGC 6814 has an extremely bright nucleus and is a type 1.5 Seyfert galaxy. The galaxy is also a highly variable source of X-ray radiation. The ultraviolet and optical emission also varies, although more smoothly, with time lag of two days. The cause of the lag and the smoothing of light curves is considered to be the reprocessing of the X-rays in the accretion disk. The cause of the active galactic nucleus is suspected to be a supermassive black hole with a mass about 18 million times that of the Sun. Many regions of ionised gas are studded along the dusty spiral arms.

Gallery

Excerpted from Wikipedia’s “Q1147845” article, available under the CC BY-SA 4.0 licence.

Available in 31 languages

Show 12 more

via Wikidata sitelinks · CC0