New bright comet SWAN25B
Taken by Filipp Romanov on September 13, 2025 @
Siding Spring Observatory, Australia
Click photo for larger image
| |
Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
|
|
| More images
Details:
On 2025-09-13 I confirmed 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.
Images: stacked 3x10 sec. (RGB) and single 60 sec. (Luminance filter).
Photographer's website:
https://bsky.app/profile/filipp-romanov.bsky.social
|
|
|
