The universe loves to keep us guessing, and this latest image is no exception. A near-perfect question mark is a fun reminder of how much we still have to learn about the cosmos.
This unique emission nebula, located in the constellation of Cepheus, lies approximately 2,900 light-years from Earth.
34 hours and 20 min total integration
Ha subs 37 * 1,200sec = 12 hours 20 minutes
OIII subs 38 * 1,200sec = 12 hours 40 minutes
SII subs 28 8 1,200sec = 9 hours 20 minutes
Imaging Equipment:
Askar ALC200 focal length 200mm
Rainbow Astro RST-135,
ZWOASI2600MM Pro camera
3nm Ha, OIII &SII filters