Observation by Nick James: New comet SWAN

Uploaded by

Nick James

Observer

Nick James

Observed

2021 Feb 28 - 19:12

Uploaded

2021 Mar 01 - 07:30

Objects

C/2021 D1 (SWAN)

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Constellation

Pegasus

Field centre

RA: 23^h29^m
Dec: +13°26'
Position angle: +2°38'

Field size

2°38' × 2°55'

Equipment

Canon EOS 550D + 200mm f/2.8 L

Exposure

10x21s

Location

Chelmsford, UK

Target name

NEOCP object SWAN21D

Title

New comet SWAN

About this image

On February 25 Michael Mattiazzo (Swan Hill, Victoria, Australia) reported on comets-ml a possible comet in SWAN spacecraft data moving north through Pegasus. He noted that the comet appeared to be brightening at magnitude 11-12 and would be visible low in the northern hemisphere evening twilight. The position on Feb 25 was approximately 23h 23m, +13 deg. Various unsuccessful searches were made for the comet and it was listed on the NEOCP on February 27. I tried searching for it yesterday evening (Feb 27) using a Canon EOS550D and a 200mm, f/2.8L on a Star Adventurer mount but had no luck due to haze near the horizon.

Finally, on February 28 the comet was imaged by Krisztián Sárneczky (K88), Michael Jaeger (A71) and Luca Buzzi (204). Following Michael's alert this evening I had another go with my 200mm lens and managed to detect the comet as shown in this image. It is around 11th magnitude. Using the precise positions from tonight it appears that the comet was detected yesterday on an image taken by Nico Lefadeux using a 200mm lens but this is not confirmed.

Files associated with this observation

swan21d_20210228_1912_ndj.jpg (748.0 kB)

Like this image

David Basey, Paul G. Abel, Ron Johnson, Mike Harlow

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