Abell 33 - The Diamond Ring Nebula
The Diamond Ring Nebula is a very faint spherical planetary nebula in the constellation Hydra. It gets its bluish color from doubly ionized oxygen. The star in the lower-right corner of the nebula is not associated with the nebula, but actually considerably closer to us. Since the nebula is so faint, one can only see it with a timed exposure. It lies about 2700 light-years away from us.

Image processed by Ron Yelton, original data from Telescope Live
Gamma Cygni Nebula
The image of this nebula is just part of the nebulosity that surrounds the star Navi, in the constellation Cassiopeia. The hot stars embedded in the nebulosity excite (heat) the surrounding gasses enough that the gasses begin to glow. That makes most of the nebula an emission nebula. This one is about 1500 light-years away. 

Image processed by Ron Yelton, original data from Telescope Live

                          Location: El Sauce Observatory, Chile                              
                          Date: January 2025
                          Mount:
Mathis MI-1000/1250                   
                          Telescope:
Planewave CDK24 (CHI-1)                   
                          Camera:
QHY600m  @-25c
                          Exposure: 18 x 5 min for LRGB
. Total: 1 hrs  30 min
                            Location: IC Astronomy Observatory, Spain 
                            Date: June 2024
                            Mount: 
Paramount MX+
                            Telescope:
Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: SHO 36 x5 min   Total: 3 hrs





Except as noted all images Copyright © by Ron Yelton and may not be used without permission.