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

Uploaded by

Nick James

Observer

Nick James

Observed

2025 Sep 24 - 03:44

Uploaded

2025 Sep 24 - 05:26

Objects

C/2025 A6

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Constellation

Lynx

Field centre

RA: 08^h59^m
Dec: +37°21'
Position angle: +2°07'

Field size

3°09' × 2°15'

Equipment

72mm, f/4.8 refr. + ASI294MC

Exposure

31x120s

Location

Chelmsford

Target name

C/2025 A6 (Lemmon)

Title

C/2025 A6 (Lemmon) tail

About this image

The long ion tail of C/2025 A6 (Lemmon) stretches out of the frame of this 3 x 2 deg image. This camera is aligned with my main telescope (which took this sequence of the billowing tail at the same time) so the coma has to be in the centre of field. Otherwise I would have offset it to the lower left.

My estimate for the current total magnitude is 7.7. What will the comet look like when it is at its best in late October?

Files associated with this observation

2025a6_20250924_034421_ndj.jpg (2.2 MB)

Like this image

James Weightman, Peter Mulligan, Nick Quinn, Dominic Ford, Andy Wilson, Tim Haymes, Brendan Tynan

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