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:QHY600m  @-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  		NGC 3324 (IC 2599)
NGC 3324 is actually an open star cluster that is mistakenly associated with IC 2599 which is an emission nebula. Together they have been nicknamed The Gabriela Mistral Nebula. The entire area is an active star-making region. Its age has been estimated at about 12 million years old. It is 9,100 light-years away from Earth. Post-processed in the OHS palette.





Image processed by Ron Yelton, original data from Telescope Live 		Messier 42 - The Great Orion Nebula
This famous nebula is an emission nebula and an active star-making region in the constellation Orion (The Hunter). It is so bright that it is usually mistaken as the middle "star" in Orion's sword. Inside the bright spot in the center are a number of stars that are referred to as the Trapezium. With a good medium sized telescope, at least 4 stars can be seen there. All of the stars in this nebula are relatively young, very hot stars, whose radiant energy heats the surrounding gasses to the point that they glow. it is one of the most observed and photographed deep sky objects. 1344 ly away and 25 ly across. Just above the nebula is another nebula by the name of The Running Man Nebula.

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 		                          Location: El Sauce Observatory, Chile                              
                          Date: April 2025
                          Mount: Mathis MI-1000/1250                   
                          Telescope: Planewave CDK24 (CHI-1)                   
                          Camera:QHY600m  @-25c (CMOS)
                          Exposure: 32 x 5 min for OHS. Total: 2 hrs  40 min		                         Location:  Heaven's Mirror Observatory, Australia
                        Date: May 2024
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 131 x 5 min each for LRGB   Total:10h hrs 55 min







Messier 42 - The Great Orion Nebula
One of the most popular observing and imaging objects in our nighttime sky is the Orion Nebula. Please see the info in the preceding panel. Usually, this object is imaged using visible light filters. This version was done using narrowband filters in the OHS scheme (Ha, OIII and SII).


Image processed by Ron Yelton, original data from Telescope Live
 		IC-359
  I was unable to find any information on this nebula. This data set from Telescope Live is labeled as IC 359, but the only thing I could find online is a galaxy designated as IC 359. Anyway, this looks to me to be a field of dust. There is is some nebulosity around the three blue stars that appear to be not close enough to the dusty areas to make this a reflection nebula.

Image processed by Ron Yelton, original data from Telescope Live 		IC 4628 - The Prawn Nebula
  This one is an emission nebula located in the constellation Scorpius. It sits about 6,000 light-years from Earth.




Image processed by Ron Yelton, original data from Telescope Live
                        Location:  Heaven's Mirror Observatory, Australia
                        Date: August 2023
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 150 x 30 sec each for OHS   Total:1h hrs 15 min		                   Location: IC Astronomy Observatory, Spain
                  Date: December 2021
                  Mount: Paramount MX+
                  Telescope: Takahashi FSQ-106ED  (SPA-1)   (CCD)                        
                  Camera: FLI PL16083
                  Exposure: 48 x 5 min for Ha, OIII and SII. Total: 8 hrs 		                        Location:  Heaven's Mirror Observatory, Australia
                        Date: March 2024
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 63 x 5 min each for OHS   Total: 5 hrs 15 min







IC 2944
This is another instance where I've processed an image twice in two different palettes. This one was done in SHO.
Most of the image is taken up by the Running Chicken emission nebula, while IC 2944 is actually the open cluster up near the top of the image. In the lower part of the blue region there are a number of Bok globules (small black dots), which are active star making areas. It sits about 6,500 light-years away from us.

Image processed by Ron Yelton, original data from Telescope Live
 		IC 2944
This Here is the other version of IC 2944 to the left. This one was processed using the OHS palette.






Image processed by Ron Yelton, original data from Telescope Live 		NGC 6888 - The Crescent Nebula (HOO)
This is a wide-field view of the Crescent Nebula and its surroundings. It is located in the constellation Cygnus (The Swan) and lies about 5000 light-years away from us. This one was post-processed in the HOO palette. That is, Hydrogen assigned to the red channel and Oxygen to both the Green and Blue channels, which makes for some interesting colors. There is a little red circle down at the bottom-left of the image. That is Sharpless-104 (Sh2-104), which is a small emission nebula.

Image processed by Ron Yelton, original data from Telescope Live
                        Location:  Heaven's Mirror Observatory, Australia
                        Date: April 2025
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 91 x 5 min each for SHO   Total: 7 hrs 35 min		                         Location:  Heaven's Mirror Observatory, Australia
                        Date: April 2025
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 91 x 5 min each for SHO   Total: 7 hrs 35 min		                             Location: IC Astronomy Observatory, Spain 
                            Date: May 2023
                            Mount:  Paramount MX+
                            Telescope: Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 61 x 5 min for HOO    Total: 5 hrs  5 min







NGC 6888 - The Crescent Nebula (HOO)
This a cropped version of the preceding image of NGC 6888. If you click on the the image you can see a blown-up version. Just to the Crescent's 8 o'clock position is another small nebula. This one is called the Soap Bubble Nebula. It is very faint and difficult to see except with a moderately large telescope and long exposure times.. It was discovered in 2007 by amateur astronomer Dave Jurasevich using an Astro-Physics 100 mm refractor telescope. This little nebula is a plnetary nebula.

Image processed by Ron Yelton, original data from Telescope Live 		NGC 6888 - The Crescent Nebula (OHS)
Here we are continuing this series on the Crescent Nebula.With this one and the next, I've changed the color palette to OHS: red = oxygen, green = hydrogen and blue = sulphur. You can get some pretty interesting and whacky looking images, but with a palette change you can always see a completely new set of details in the image.


Image processed by Ron Yelton, original data from Telescope Live 		NGC 6888 - The Crescent Nebula (OHS)
A zoomed-in view of the image to the left.






Image processed by Ron Yelton, original data from Telescope Live
                            Location: IC Astronomy Observatory, Spain 
                            Date: May 2023
                            Mount:  Paramount MX+
                            Telescope: Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 61 x 5 min for HOO    Total: 5 hrs  5 min
                             Location: IC Astronomy Observatory, Spain 
                            Date: May 2023
                            Mount:  Paramount MX+
                            Telescope: Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 61 x 5 min for OHS    Total: 5 hrs  5 min 		                            Location: IC Astronomy Observatory, Spain 
                            Date: May 2023
                            Mount:  Paramount MX+
                            Telescope: Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 61 x 5 min for OHS    Total: 5 hrs  5 min







NGC 3324 _The Gabriela Mistral Nebula (HSO)
At a distance of 9100 light-years from Earth, in the southern constellation of Carina (the keel of the ship Argo Navis from the story of Jason and the Argonauts), is the Gabriela Mistral Nebula. It was named after the Chilean poet. Carina also holds the second brightest star in out nighttime sky, Canopus. The nebula is about 12 million years old.


Image processed by Ron Yelton, original data from Telescope Live 		RCW 49 - The Whirling Dervish Nebula (OHS)
This nebula is located in the constellation Carina and consists of a large cloud of hydrogen gas. It lies about 13,700 light-years away and is between 300-400 light-years across. Also known as the Whirling Dervish Nebula it contains about 2200 new stars, making it an active star making factory.



Image processed by Ron Yelton, original data from Telescope Live
 RCW 100 - The Fine Ring Nebula
This unusual planetary nebula is in the very small southern constellation of Norma (the Latin word for a carpenter's square, ruler or level). it's about 2500 light-years away from us. What makes it unusual is that it was formed from a star that was part of a binary system. Most planetary nebulae are either spherical, elliptical or bi-polar (displaying two symmetric lobes). This binary pair are almost face-on to us and have an orbital time of 2.9 days.

Image processed by Ron Yelton, original data from Telescope Live
                          Location: El Sauce Observatory, Chile                              
                          Date: April 2025
                          Mount: Mathis MI-1000/1250                   
                          Telescope: Planewave CDK24 (CHI-1)                   
                          Camera:QHY600m  @-25c (CMOS)
                          Exposure: 47 x 5 min for HSO. Total: 3 hrs  55 min		                           Location: El Sauce Observatory, Chile                              
                          Date: April 2025
                          Mount: Mathis MI-1000/1250                   
                          Telescope: Planewave CDK24 (CHI-1)                   
                          Camera:QHY600m  @-25c (CMOS)
                          Exposure: 81 x 5 min for OHS. Total: 6 hrs  45 min 		                          Location: El Sauce Observatory, Chile                              
                          Date: April 2025
                          Mount: Mathis MI-1000/1250                   
                          Telescope: Planewave CDK24 (CHI-1)                   
                          Camera:QHY600m  @-25c (CMOS)
                          Exposure: 90 x 5 min for OHS. Total: 7 hrs  30 min







NGC 6302 - The Bug Nebula
This is a bipolar planetary nebula located in the constellation Scorpius. Scientists are still unsure as to why a star would end its life in this fashion as opposed to the more common spherical planetary nebula. the surface of this white dwarf is around 250,000 degrees Celsius, which makes it one of the hottest bodies known to us. This particular image is new rendering of the ones on the Nebula 5 page.

Image processed by Ron Yelton, original data from Telescope Live 		RCW 19 (GUM 10)
This is an emission nebula in the southern constellation of Puppis. It is part of an enormous molecular cloud complex and sits about 10,760 light-years away. There is a lot of active star formation in its interior.




Image processed by Ron Yelton, original data from Telescope Live 		RCW 19 (GUM 10)
This is a different view of the object to the left. That one was processed with the HSO palette. This one is done with the OHS palette.





Image processed by Ron Yelton, original data from Telescope Live
                          Location: El Sauce Observatory, Chile                              
                          Date: August 2024
                          Mount: Mathis MI-1000/1250                   
                          Telescope: Planewave CDK24 (CHI-1)                   
                          Camera:QHY600m  @-25c (CMOS)
                          Exposure: 85 x 5 min for OHS. Total: 7 hrs  5 min		                         Location:  Heaven's Mirror Observatory, Australia
                        Date: May 2025
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 90 x 5 min each for HSO   Total: 7 hrs 30 min 		                        Location:  Heaven's Mirror Observatory, Australia
                        Date: May 2025
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 90 x 5 min each for OHS   Total: 7 hrs 30 min







NGC 3324
Buried in the heart of the Gabriela Mistral Nebula, is the open cluster NGC 3324. Just down and left of center is a round, orange area. The cluster (difficult to see) is inside this bright area. The surrounding nebula is an emission nebula. Its age is estimated to be around 12 million years.





Image processed by Ron Yelton, original data from Telescope Live		 NGC 2264
This nebula is in the constellation Monoceros. It lies about 2700 light-years away from us. NGC 2264 actually refers to two objects The Cone Nebula and the Christmas Tree Nebula. Also within this huge reflection nebula are the Fox Fur and Snowflake Nebulae. I did a real-time processing of this object as a presentation for our local astronomy club in April 2024. I processed it at least once a day for a month in order to recreate the first version. Never could duplicate that first effort, but this one turned out just as nice. I've done this image a number of times all with different telescopes and cameras

Image processed by Ron Yelton, original data from Telescope Live 		LDN 1667
This dark nebula is part of the greater Orion Molecular Cloud Complex. It sits about 600 light-years away from us.







Image processed by Ron Yelton, original data from Telescope Live
                        Location:  Heaven's Mirror Observatory, Australia
                        Date: May 2025
                        Mount: Paramount MX+                        
                        Telescope: FSQ-106ED (AUS-2)
                        Camera: QHY600m @ -25c                       
                        Exposure: 90 x 5 min each for HSO   Total: 7 hrs 30 min		                             Location: IC Astronomy Observatory, Spain 
                            Date: February 2023
                            Mount:  Paramount MX+
                            Telescope: Takahashi FSQ-106ED   (SPA-1)
                            Camera: QHY600m CMOS @ -25c
                            Exposure: 62 x 5 min for HSO    Total: 5 hrs  10 min 		                     Location: Heaven's Mirror Observatory, Australia
                     Date: December 2022
                     Mount: Paramount MX+
                     Telescope: FSQ-106ED (AUS-2)
                     Camera: FLI PL16083 @ -25c
                     Exposure: 50 x 10 min each for Ha, OIII and SII. Total:8 hr 20 min.







NGC 281
A bright emission nebula resides in the northern part of the
constellation Cassiopeia. It is also known as the Pac Man Nebula and sits about 9500 light-years away.








Image processed by Ron Yelton, original data from Telescope Live 		CTB 1 (Abell 85) - The Medula Nebula
About 10,000 yrs ago a massive star exploded in the constellation Cassiopeia. What remained afterward, was this supernova remnant and a high-velocity pulsar at its center. The outer, expanding shell is a rich radio and x-ray source. It sits just shy of 10,000 light-years away from us and has a diameter of about 98 light-years. Its very low surface brightness makes it a difficult object to image. It is also known as the Garlic Nebula. If you look closely at the shell's 4 o'clock position. there is an interesting "small" cloud of dark nebulosity.




Image processed by Ron Yelton, original data from Telescope Live
 iC 443 - The Jellyfish Nebula
tC 443 also known as the Jellyfish Nebula and Sh3-248 is a galactic supernova remnant (SNR) in the constellation Gemini. It is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth. IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created its neutron star, the collapsed remnant of the stellar core. IC 443 is one of the best studied cases of supernova remnants interacting with its surrounding molecular clouds. This image has almost 50 hours of exposure an was taken with a telescope with a wider field of view than my original image on the Nebula-2 page. It was taken with both Hydrogen and Oxygen filters.

Image processed by Ron Yelton, original data from Telescope Live
                         Location: IC Astronomy Observatory, Spain                            
                         Date: August 2023
                         Mount: Officina Stellare EQ Mount
                         Telescope: Officina Stellare Pro RC 700 (27" f/8) (SPA-2)
                         Camera: FLI PL16803 23' x 23'   @-25c
                         Exposure: 129 x 10 min each SHO Total: 4 hrs  20 min 		                       Location: Italy                            
                       Date: July 2025
                       Mount: Unknown
                       Telescope: ASA N10 250  FL 900mm F/3.6   (T-23)
                       Camera: Player One Mono 571
                       Exposure: 511 x 10 min each (HOO)HaO Total: 17hrs 25min 		                  Location: Italy                            
                  Date: December 2025
                  Mount: Unknown
                  Telescope: ASA N10 250  FL 900mm F/3.6   (T-23)
                  Camera: Player One Mono 571
                  Exposure: 258 x 10 min each (HOO)HaO Total: 42hrs 40min









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