David's Astronomy Pages
|
 Images (S133) |
 Images Sessions |
Home Page |
 Images (S135) |
|
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) |
||||||||||||||
|
Astrometry measurement of Groombridge 1830 based on
12 images (#130009-24) 1x1 binning, 20s exposure, C Filter |
||||||||||||||
|
||||||||||||||
| Average Position, Errors bars at +/-1 SD | ||||||||||||||
Back to Top
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) |
Back to Top
Images collected as part of a ongoing study to develop a light curve for this Mira variable [U Her project]
Back to Top
| 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 |
