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
NGC 1923
This particular object is a combination of an star cluster and nebula locate\d in the constellation Dorado. Unfortunately, I couldn't find any more information on this object.



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
                          Location: El Sauce Observatory, Chile                              
                          Date: November 2024
                          Mount:
Mathis MI-1000/1250                   
                          Telescope:
Planewave CDK24 (CHI-1)                   
                          Camera:
QHY600m  @-25c
                          Exposure: 81 x 5 min for RGB
. Total: 6 hrs  45 min







RCW 104
This nebula is located in the southern constellation of Norma (the Carpenter's Square). It's known as a ring type nebula that surrounds a wolf-reyet star that emits large amounts of radiation that shapes the surrounding gas clouds. in this image, the blue represents ionized hydrogen (HII).

Image processed by Ron Yelton, original data from Telescope Live
IC 405 - The Flaming Star Nebula
 
Both an emission and reflection nebula, this nebula is only 1500 light-years away in the constellation Auriga (the Charioteer). Its diameter is about 5 light-years. The central star is thought to have originated in the area of Orion's Belt and then wandered off to Auriga.

Image processed by Ron Yelton, original data from Telescope Live
IC 405 - The Flaming Star Nebula
This one is the same image of the Flaming Star Nebula, just without the stars. Removing the stars sometimes gives the image a completely different feel.



Image processed by Ron Yelton, original data from Telescope Live
                          Location: El Sauce Observatory, Chile                              
                          Date: March 2025
                          Mount:
Mathis MI-1000/1250                   
                          Telescope:
Planewave CDK24 (CHI-1)                   
                          Camera: FLI ProLine PL9000
  @-25c (CMOS)
                          Exposure: 54 x 5 min for OHS
. Total: 4 hrs  30 min
                            Location: IC Astronomy Observatory, Spain 
                            Date: July 2023
                            Mount: 
Paramount MX+
                            Telescope:
Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 31 x 5 min for OHS    Total: 2 hrs  35 min
                            Location: IC Astronomy Observatory, Spain 
                            Date: July 2023
                            Mount: 
Paramount MX+
                            Telescope:
Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 31 x 5 min for OHS    Total: 2 hrs  35 min







RCW 16 - Skull and Crossbones Nebula
RCW 16 is an emission nebula located in the constellation Puppis. It is also known as the Skull and Crossbones Nebula or the Mandrill Nebula. It is roughly 15,000 light-years away from us and has a diameter of about 200 light-years. It is also an active star-making factory.
 
Image processed by Ron Yelton, original data from Telescope Live

                        Location:  Heaven's Mirror Observatory, Australia
                        Date: March 2025
                        Mount:
Paramount MX+                        
                        Telescope:
FSQ-106ED (AUS-2)
                        Camera: 
QHY600m @ -25c                       
                        Exposure: 80 x 5 min each for OHS   Total:6h hrs 40 min
                   
                    




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