FSU100001SArtist's concept of Cygnus X-1, a luminous x-ray source in the constellation Cygnus.
WMY100077SArtist's concept of a nebula over a hypothetical planet.
ALV100033SRigel is the brightest star in the constellation Orion.
PHA100015SThe Jewel Box, Open Cluster NGC 4755 in Crux.
ATA100058SThe eclipsing binary Beta Aurigae, two bluish-white subgiants.