castro.pic:
NGC 7822
castro.pic:
SH2-230 (NGC1931 IC417 IC410 IC405) - Annotated
castro.pic:
SH2-230 (NGC1931 IC417 IC410 IC405)
castro.pic:
Heart and Soul nebula - IC1805 IC1848
castro.pic:
IC405, IC410, IC417, NGC1931
castro.pic:
Herz Seelen Nebel
castro.pic:
NGC2237 h-alpha
castro.pic:
NGC2237 h-alpha 1
castro.pic:
IC1340 h-alpha
castro.pic:
NGC7000_WideField_BiColor_v3
castro.pic:
NGC7000 WideField h-alpha
castro.pic:
IC1340 HaRGB Final
castro.pic:
NGC 2264
castro.pic:
Sadr Region h-alpha
castro.pic:
IC 434
castro.pic:
IC444_Ha
castro.pic:
IC2177 h-alpha