Original post on mastodon.social

Sh2-171 – The Question Mark Nebula in Cepheus. A two-panel mosaic covering over 100 light-years of active star formation, powered by Berkeley 59 — a cluster just 2 million years old. Its O5V star BD+66 1673 burns at 45,000 Kelvin, sculpting the dark pillars visible throughout the frame […]

SH2-171 in SHO An astrophotograph by Stefan Kellner on AstroBin

Here’s SH2-171, an emission nebula in Cepheus.
This nebula is located about 3,000 light-years away.
#Astrophotography #Nebula #SH2171 #DeepSky #SHO #AstroPhotography #Cepheus #backyardastronomy #bortle8 #berlin

Large: astrob.in/qz0mch/0/