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Objects Session Notes
Groombridge 1830 - Nearby star Barnard's Star U Her - Mira variable
- 40 min session,cut short by rapidly developing cloud - CCD operation of -15 degC - main objectives where to acquire images as part of ongoing project on nearby stars and specific variables, in the event only 3 targets were imaged before cloud forced the session to end. - More Notes
Astrometric measurements made, as part of a ongoing study to attempt to measure proper
motion and annual parallax of Groombridge 1830.
(Groombridge 1830 Project )
Groombridge 1830 (Ursa Major) |
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Astrometry measurement of Groombridge 1830 based on
12 images (#130009-24) 1x1 binning, 20s exposure, C Filter |
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Average Position, Errors bars at +/-1 SD |
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Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of Barnard's Star. (Barnards Star Project)
Comparison of Barnard Star position at 2006-05-06 & 2006-08-24 & (0.30 year period) |
Animated CCD Images 2006-05-06 : av5 x 10s, 1x1 binning, C Filter (#122252-56) 2006-08-24 : av7 x 10s, 1x1 binning, C Filter (#134030-36) |
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Images collected as part of a ongoing study to develop a light curve for this Mira variable [U Her project]
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This Web Page: | CCD Images - Session 134 (2006-08-24) |
Last Updated : | 2015-05-16 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |