Sh2-155 C9 Cave Nebula
Sh2-155 C9 Cave Nebula
The Cave Nebula Sh2-155 or Caldwell 9, is in the constellation Cepheus. It is approxmiatly 2400 light years away, and 35 light years across. It is a dim, and diffuse bright nebula, within a larger nebula complex containing reflection, emmison, and dark nebulosity.
Crop of the Cave Nebula
Sh2-155 20min Ha Subframes x 19 = 380 min combined image
Sh2-155 10min Red Subframes x 5 = 50 min combined image
Sh2-155 10min Green Subframes x 5 = 50 min combined image
Sh2-155 10min Blue Subframes x 27 = 270 min combined image
Scope TMB130mm
Camera Apogee U8300
Mount Atlas EQG
Filters Astrodon Ha5nm RGB Gen1
Exposures Ha 6.3hrs R1hrs G1.5hrs B4.5hrs 10min subs
Location Connellsville Pa. Home Observatory 2011
Click Here for Link to NarrowBand Cave Nebula Image