Observation by Michael Buechner, Frank Niebling: 3I Atlas 12th Sep 2025

Uploaded by

Michael Buechner

Observer

Michael Buechner, Frank Niebling

Observed

2025 Sep 12 - 19:43

Uploaded

2025 Sep 13 - 16:18

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Constellation

Libra

Field centre

RA: 15^h02^m
Dec: -13°05'
Position angle: -2°14'

Field size

0°18' × 0°14'

Equipment

TEC 140 f/7 with AP 0.72x Quad telecompressor f=5
ASI 6200MM; filter L
ASA DM60
Remote controlled

Exposure

7x300s

Location

Pixelsies Astro, Remote, Spain

Target name

3I Atlas

Title

3I Atlas 12th Sep 2025

About this image

Coma significantly enlarged, small tail photographically visible compared to observations in August

At the time of observation, Comet was between 15 degrees and 8 degrees high

Measurement with Tycho Tracker: MV 14m.6 coma: 0.8' tail: 2' PA:104

Files associated with this observation

1638.jpg (168.5 kB)

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