2025r2 20250913 fromanov

On 2025-09-13 I confirmed the new bright comet SWAN25B remotely using iTelescope.Net T59 (0.51-m f/6.8 reflector + CCD) located at the Siding Spring Observatory, Australia.

I measured: magnitude of the coma = +8.9 mag., coma diameter = 2 arcminutes with a straight tail (which becomes wider away from the coma) at least 18 arcminutes in length (to the edge of the frame), PA = 112 degrees.
 
 
 
My astrometric data:
 
 
 
     SWAN25B  C2025 09 13.36290913 12 24.128-09 42 11.79                     Q62
     SWAN25B  C2025 09 13.36554513 12 24.836-09 42 15.51                     Q62
     SWAN25B  C2025 09 13.36819213 12 25.499-09 42 19.53          8.9 G      Q62

Images: stacked 3x10 sec. (RGB) and single 60 sec. (Luminance filter).