British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community Member Pages Alex Pratt
Image search

Video astrometry of comet 41P/Tuttle-Giacobini-Kresak

Image

Expand image

About this observation
Observer
Alex Pratt
Time of observation
26/03/2017 - 20:28
Object
Comet 41P/Tuttle-Giacobini-Kresak
Observing location
Z92
Equipment
C11 @ f/3.3
Watec 910 video camera
IOTA-VTI GPS time inserter
Tangra software
Exposure
0.32s integrations
Tags
Like This Image
Share

Video astrometry of comet 41P was obtained during the recent clear nights.

Tangra plate-solved ~200 video frames from each 1 minute recording. The comet had a sky motion of about 5"/min so Tangra computes a least squares fit to the movements in RA and Dec. Clicking on the mini-plot gives the motion-fitted RA and Dec (and magnitude estimate) at the selected instant and its corresponding 'normal' time, which is a 6-figure microday time format used by MPC when reporting GPS time tagged video observations.

The resultant MPC formatted lines are:-

0041P         n2017 03 20.87768010 57 22.05 +53 18 35.4          13.3 N      Z92

0041P         n2017 03 20.90628410 57 35.42 +53 21 00.4          13.4 N      Z92

0041P         n2017 03 23.85462211 25 17.05 +57 17 39.7          12.2 N      Z92

0041P         n2017 03 23.87514711 25 29.85 +57 19 16.1          12.6 N      Z92

0041P         n2017 03 26.02071511 50 48.06 +59 54 23.0          12.9 N      Z92

0041P         n2017 03 26.04208511 51 04.06 +59 55 48.6          12.8 N      Z92

0041P         n2017 03 26.85289712 02 01.36 +60 48 29.1          12.7 N      Z92

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.