Getting plate-solving status, please wait...
IC 1805 (Heart Nebula)  Canon 200mm f3.8 lens 2 hrs in 60 sec subs with 533MC, Rick Evans

IC 1805 (Heart Nebula) Canon 200mm f3.8 lens 2 hrs in 60 sec subs with 533MC

Getting plate-solving status, please wait...
IC 1805 (Heart Nebula)  Canon 200mm f3.8 lens 2 hrs in 60 sec subs with 533MC, Rick Evans

IC 1805 (Heart Nebula) Canon 200mm f3.8 lens 2 hrs in 60 sec subs with 533MC

Equipment

Loading...

Acquisition details

Loading...

Description

Heart Nebula  imaged during high gibbous moon that was close to full.  Fortunately the L-Extreme filter minimized the light gradient the moon caused.  This Canon lens has a 72mm aperature which I stopped down, with a step down ring, to 52mm.  The gave the normal f2.8 an increase to about f3.8.  I did it to improve star sharpness and contrast. Tracking only, no guiding.

Comments

Histogram

IC 1805 (Heart Nebula)  Canon 200mm f3.8 lens 2 hrs in 60 sec subs with 533MC, Rick Evans