Also Known as: UGC 12779/12780. PGC 72382/72387, Arp 86
Object Type: Galaxies
Constellation: Pegasus
Distance from Earth: 272 million light years
Apparent Magnitude: 15.0 and 12.8
Coordinates: RA 23H 46M 58.5S DEC 29deg 27min 32sec / RA 23H 47M 04.8S DEC 29deg 29min 00sec
Actual Size: 126,5000 light years & 60,000 light years
Apparent Dimensions: 0.8 arc-minutes x 0.5 arc-minutes & 3.3 arc-minutes x 2.1 arc-minutes
Discovered by: The galaxy NGC 7753 was discovered on 12 September 1784 by the German-British astronomer William Herschel with his 18.7 inch reflecting telescope. He cataloged it as II.
The discovery of the neighboring small galaxy NGC 7752 by RJ Mitchell had to wait until 22 November 1854. He observed the galaxy with the large 72 inch reflecting telescope of his employer William Parsons, 3rd Earl of Rosse..
Description: NGC 7753 is the primary galaxy.
It is a barred spiral galaxy with a small nucleus. NGC 7752 is the satellite galaxy of NGC 7753. It is a barred lenticular galaxy that is apparently attached to one of NGC 7753's spiral arms.
They resemble the Whirlpool Galaxy (M51A) and its satellite NGC 5195 (M51B).
Arp 86 is composed of the two galaxies NGC 7752 and NGC 7753 β NGC 7753 is the large spiral galaxy dominating this image, and NGC 7752 is its smaller companion.
The diminutive companion galaxy almost appears attached to NGC 7753, and it is this peculiarity that has earned the designation βArp 86β β signifying that the galaxy pair appears in the Atlas of Peculiar Galaxies compiled by the astronomer Halton Arp in 1966.
The gravitational dance between the two galaxies will eventually result in NGC 7752 being tossed out into intergalactic space or entirely engulfed by its much larger neighbor.
Click Below Image(s) for Full Size:
NGC 7753 is a Intermediate Spiral Galaxy in the Pegasus constellation. NGC 7753 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.
Given its NGC 7753 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.
Platesolve
NGC 7752 & NGC 7753 Galaxies