Observation by Nick James: C/2025 A6 (Lemmon)

Uploaded by

Nick James

Observer

Nick James

Observed

2025 Sep 20 - 03:05

Uploaded

2025 Sep 20 - 08:21

Objects

C/2025 A6

Equipment

ASI6200MM + Celestron HD11

Exposure

23x60s

Location

Chelmsford

Target name

C/2026 A6

Title

C/2025 A6 (Lemmon)

About this image

Clear but hazy this morning but at least the moon has gone. A nice ion tail despite the poor conditions. The comet continues to behave well and my total magnitude estimate for this morning (from the green pixels of a colour image taken with a 72mm refractor) is 8.4. I'm increasingly confident that we will have a bright comet to observe in late October.

Nicolas Lefaudeux has done some tail simulations which suggest a nice, long gas tail pre-perihelion: https://hdr-astrophotography.com/.

Fingers crossed for clear skies around about New Moon in October.

Files associated with this observation

2025a6_20250920_030519_ndjbaa.jpg (1.2 MB)

Like this image

Mike Foulkes, Dominic Ford, Peter Mulligan, Andy Wilson

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