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

Uploaded by

Nick James

Observer

Nick James

Observed

2025 Sep 23 - 03:00

Uploaded

2025 Sep 23 - 06:31

Objects

C/2025 A6

Equipment

ASI6200MM + Celestron HD11

Exposure

7x20x60s

Location

Chelmsford, UK

Target name

C/2025 A6 (Lemmon)

Title

C/2025 A6 (Lemmon) tail motion

About this image

This animation of the gas tail of C/2025 A6 shows motion over a period of just over one hour. A blob of gas is moving down the tail away from the head. Each frame of this animation is 20 minutes long and the stack mid-times are separated by 10 minutes. I have a longer sequence from this morning (almost 2.5 hours) but I'll process that later.

I get a total magnitude of 8.0 this morning.

Files associated with this observation

2025a6_20250923_0300_ndj.gif (4.0 MB)

Like this image

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Comments

Nick James, 2025 Sep 23 - 20:12 UTC

Here is a longer version of this animation with the satellite trails removed and here is a longer stack processed with a log stretch to show detail in the inner coma.

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