Observation by Alex Pratt: Video astrometry of comet C/2018 Y1 (Iwa...

Uploaded by

Alex Pratt

Observer

Alex Pratt

Observed

2019 Feb 14 - 23:24

Uploaded

2019 Feb 15 - 13:25

Objects

C/2018 Y1 (Iwamoto)

Equipment

C11 f/10 @ f/3.3
Watec 910 video camera
IOTA-VTI GPS time inserter
OccuRec (recording)
Tangra (reduction)

Exposure

0.64s integrations

Location

Z92

Target name

Comet C/2018 Y1 (Iwamoto)

Title

Video astrometry of comet C/2018 Y1 (Iwamoto)

About this image

At long last I managed to get some astrometry of this comet. Previous nights were forecast to be 'clear', but haze, thin cloud, poor transparency and occultation events delayed me from recording it.

The video camera was set to 0.64s integrations and videos of 1-minute duration were taken of a half-degree field around the comet. The MPC gave its sky motion to be 17"/min and the movement of the comet against the star background was clearly noticeable. Tangra analysed it as a Slow Flyby. In this example, 114 measures give its motion as 0.25"/sec in RA and 0.12"/sec in Dec, equating to a sky motion of 0.277"/sec (16.6"/min).

Files associated with this observation

2018Y1_20190214_2324_ARP.png (479.6 kB)

Like this image

Graham Winstanley, Jeremy Shears, David Basey, Andy Wilson, Peter Carson

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