©
villem989: C30-L
©
villem989: M108_L+HA
©
villem989: Cygnus X-1
©
villem989: Cygnus X-1-astrometry
©
villem989: Cygnus X-1-venytys
©
villem989: C30-L-astrometry
©
villem989: ngc6888-ha
©
villem989: NGC253
©
villem989: helix-ha