images

Sharpless 155 (Sh2-155) the Cave Nebula

by

K.A. Lecky Hepburn/Novapix

Reference

a-neb85-15507

Date

2015-03-17

The Cave emission nebula in Cepheus is spanning 35 light-years across and lying at a distance of 2400 light-years away; this expansive area of emission nebulosity is not associated with very active star formation but is most photogenic.