CTB1 Super Nova Remnant in Cassiopiea
with 10" f/3.9 Astrograph / MiniCat 51 Context
Uploaded 12/17/25

 

            
CTB1 in Cassiopiea is
            an incredibly dim super nova remnant, a real challenge to get
            a clean image of amonst the huge number of stars in this part
            of the sky. Its age is about 12,000 years and size around 3ly.
            There have been many names for this object. Originally, it was
            called the "Medulla Nebula" for its brain like shape.
            Other names include the "Garlic Nebula", and "Popped
            Balloon Nebula".

            
The second wider field
            context image was taken at the same time with the MiniCat51,
            and reveals the it is surrounded by a host of other Sharpless
            nebula, dark LDN clouds, and many colorful Milky Way stars.

            
10 inch f/3.9 Newtonian

Select an image size for a larger view:

1600 x 1290

            
MiniCat 51 Petzval Astrograph

Select an image size for a larger view:

1600 x 1290

     

Technical Data 10 inch:
Subject: CTB1 Supernova remnant in Cassiopiea
Date: 12/16/25
Scope: 10" f/3.9 Newtonian Astrograph
Camera: Atik 16200 CCD
Integration: 12.8 Hours total integration
Location: Payson, Az
By: C. Schur

Technical Data MiniCat51 Context Astrograph:
Subject: CTB1 wide field
Date: 12/16/25 (Simultaneously with 10")
Scope: MiniCat 51mm f/3.5 astrograph
Camera: ASI2600 MC
Integration: 10 Hours total integration

Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Photoshop CS2: Production finishing 

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