Celestial Atlas
PGC 65000 - 65499 ←     PGC Objects: PGC 65500 - 65999 Link for sharing this page on Facebook     → PGC 66000 - 66499
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PGC 65685 (= PGC 130597 = ESO 286-10)
A 13th-magnitude spiral galaxy (type (R')SA(rs)a) in
Microscopium (RA 20 54 21.1, Dec -44 03 46)

Based on a recessional velocity of 5370 km/sec, PGC 65685 is about 250 million light years away. Given that and its apparent size of 2.1 by 1.7 arcmin, it is about 150 thousand light years across. Used by the de Vaucouleurs Atlas of Galaxy Types as an example of galaxy type (R')SA(r)a.

DSS image of spiral galaxy PGC 65685, also known as ESO 286-10
Above, a 3 arcmin wide closeup of PGC 65685
Below, a 12 arcmin wide region centered on the galaxy
DSS image of region near spiral galaxy PGC 65685, also known as ESO 286-10

PGC 65779
A 15th-(B)magnitude pair of galaxies (type S0/a pec + ?) in
Delphinus (RA 20 57 23.6, Dec +17 07 44)

A spectacular result of galactic collision, PGC 65779 (also known as 2ZW096, due to its inclusion in a catalog of galaxy pairs by Fritz Zwicky) is an example of a "starburst" galaxy, in which violent compression of gases due to the physical and gravitational effects of the collision has created huge numbers of hot, bright young stars which are lighting up the galaxy fragments, heating up surrounding gas, and blowing it into intergalactic space. Based on a recessional velocity of 10820 km/sec, a straightforward calculation implies that the pair is about 480 million light years away. However, for such distant objects, we must consider the expansion of the Universe during the nearly half-billion year journey of the light by which we see the object; because of this, the pair was about 15 million light years closer at the time the light was emitted. Given that and their apparent extent of 0.55 by 0.3 arcmin, the pair is about 75 thousand light years across.

Wikisky SDSS image of PGC 65779
Above, a 2.4 arcmin wide view of the colliding galaxies
Below, a HST deep-sky closeup (Credits: ESA, Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration
and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University) NASA)


Below, a 12 arcmin wide region centered on the object
Wikisky SDSS image of region near PGC 65779
Celestial Atlas
PGC 65000 - 65499 ←     PGC Objects: PGC 65500 - 65999     → PGC 66000 - 66499