Observation by Nick James: C/2023 A3 Tsuchinshan-ATLAS at 3.0 au ou...

Uploaded by

Nick James

Observer

Nick James

Observed

2025 Mar 16 - 04:28

Uploaded

2025 Mar 16 - 22:15

Objects

C/2023 A3 (Tsuchinshan-ATLAS)

Planetarium overlay

Enable overlay
Show stars
Label stars
Show deep sky objects
Label deep sky objects
Show constellation boundaries
Show constellation sticks
Show constellation labels
Show RA/Dec grid

Constellation

Delphinus

Field centre

RA: 20^h25^m
Dec: +15°51'
Position angle: -0°24'

Field size

0°28' × 0°20'

Equipment

ASI6200MM + Celestron HD11

Exposure

31x60s

Location

Chelmsford, UK

Target name

C/2023 A3 (Tsuchinshan-ATLAS)

Title

C/2023 A3 Tsuchinshan-ATLAS at 3.0 au outbound

About this image

A mere shadow of its former self this comet is now a 15th mag object moving slowly through the Milky Way in Delphinus. It is nicely placed in the morning sky and I set my telescope to wake up at 4am to get an image between astro and nautical twilight. The sky was very bright since the nearly full Moon was setting in the west. The comet is now around 3.0 au from the Sun outbound and 3.5 au from the Earth. It was this distance from the Sun inbound in 2024 April but quite a bit closer to the Earth (2.1 au) and it looked very different then. It is nicely placed for us to follow for the rest of the year.

Files associated with this observation

2023a3_20250316_042837_ndj.jpg (801.5 kB)

Like this image

Dominic Ford, Andy Wilson, Steve Knight

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.