Cygnus OB2-12
POI type: Stellar Feature
System ref.: HIP 101364
Description: Cygnus OB2-12 is a blue hypergiant belonging to the massive Cygnus OB2 Association. The association is estimated to hold more than 2000 stars of spectral types OBA. It is one of the heaviest areas of star formation in the Milky Way. Because the giant star lies beyond the Eddington Limit (the threshold where radiation pressure exceeds gravitational forces), vast amounts of its stellar material must already have been blown off through massive stellar winds. However, the star is still more than 2 million times as luminous as Sol, making it one of the brightest stars in the galaxy.
Screenshot:
First discovery credits go to Cmdr Polunochnik
Sarpanit
POI type: Stellar Feature
System ref.: Blau Thaa AA-A h0
Description: Sarpanit was a Babylonian mother goddess and the consort of Marduk. Her name means "the shining one" and this is very fitting. The system is a trinary, and its main star is a blue hypergiant of some 450 solar radii, easily outshining its O-type and B-type companions. All in all, the system holds some 140 solar masses ans is located some 500 light years above the galactic plane and is supposed to belong to the massive Cygnus OB2 Association.
Screenshot:
In the screenshot above, the hypergiant is some 2,800 light seconds away (~4 times the distance Sol - Earth), whereas the upper O-type star is 180 ls and the lower B-type is 200 ls away.
First discovery credits go to Cmdr Heliona
HD 193634
POI type: Stellar Feature
Description: HD 193634 is a double X-ray binary star system, where the main star, an A-type supergiant, is orbited by a rapid pulse neutron star and the companion star by a black hole. The system probably belongs to the massive Cygnus OB2 Association, one of the most massive areas of star formation known in the galaxy. Since the main star will expand considerably during the next millions of years by becoming a red supergiant, it will either consume the neutron star in the process, which will lead to massive gamma ray bursts, or it will itself be consumed by the neutron star's rapid pulse tidal forces, which will likely trigger a supernova.
Screenshot: