Observation by Nigel Evans: The changing tail of Comet Lemmon

Uploaded by

Nigel Evans

Observer

Nigel Evans

Observed

2025 Oct 01 - 03:10

Uploaded

2025 Oct 02 - 14:47

Objects

C/2025 A6

Equipment

200mm EdgeHD +ASI6200

Exposure

Sigma clip 10, step 5 on 30sec subframes

Location

Ipswich Suffolk

Target name

C/2025A6 Lemmon

Title

The changing tail of Comet Lemmon

About this image

The movie version!

Steve. Thanks for that advice. First time I have used PIPP

Files associated with this observation

251001 C2025A6Lemmon NSE 500.gif (9.5 MB)

Like this image

Martin Mobberley, Steve Knight, David Strange, Mike Foulkes, Dominic Ford, James Weightman, Karen Smith, Andy Wilson

Comments

Nigel Evans, 2025 Oct 02 - 14:58 UTC

FoV 47.9' x 36.3'

Steve Knight, 2025 Oct 02 - 15:41 UTC

That is incredible Nigel. Can you set the GIF to loop? If you created it in PIPP there is a setting to do that.

Nick James, 2025 Oct 02 - 20:23 UTC

Very nice, and an excellent demonstration of why you need very fast optics or a very bright comet to get good images of the ion tail. The tail changes so rapidly that long exposures just smear everything out.

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.