Observation by Alex Pratt: Video astrometry of comet C/2015 V2 (Joh...

Uploaded by

Alex Pratt

Observer

Alex Pratt

Observed

2017 Mar 26 - 01:08

Uploaded

2017 Mar 27 - 15:38

Objects

C/2015 V2 (Johnson)

Equipment

C11 @ f/3.3
Watec 910 video camera
IOTA-VTI GPS time inserter
Tangra software

Exposure

0.32s integrations

Location

Z92

Target name

Comet C/2015 V2 (Johnson)

Title

Video astrometry of comet C/2015 V2 (Johnson)

About this image

Video astrometry of comet C/2015 V2 (Johnson) was obtained during a couple of recent clear nights.

Tangra plate-solved ~200 video frames from each 1 minute recording. The comet had a sky motion <2"/min so Tangra plotted each measure of RA and Dec and their median values. Clicking on the mini-plot gives the RA and Dec (and magnitude estimate) at the selected instant and its corresponding 5-figure time for reporting to MPC.

The resultant MPC formatted lines are:-

CK15V020 C2017 03 23.88768 16 31 59.54 +47 23 09.6 12.8 N Z92

CK15V020 C2017 03 23.93029 16 31 59.90 +47 23 16.3 12.9 N Z92

CK15V020 C2017 03 26.02843 16 32 09.92 +47 27 51.4 12.6 N Z92

CK15V020 C2017 03 26.04709 16 32 09.93 +47 27 53.6 12.7 N Z92

Files associated with this observation

johnson BAA Member Page.jpg (363.2 kB)

Like this image

Peter Mulligan, Mr Leonard Entwisle, Jeremy Shears, Denis Buczynski, Peter Carson

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