David's Astronomy Pages
|
 Images (S295) |
 Images Sessions |
Home Page |
 Images (S297) |
|
Objects Session Notes
Barnard's Star (HIP 87937) - Nearby Star (5.94 ly) Astrometric & Photometric Monitoring - SS Cyg (dwarf nova)
- V2491 Cyg (nova)
- BL Lac (blazar)
- RX And, EV Lac (variables)
- Barnards Star, EV Lac, Groombridge 34, Ross 248 (Nearby Stars)
- Late evening session (1.6hr) - again cut short by developing cloud. - Warm night, ambient Temperature 15 degC - CCD operation of -15 degC
(at 86% average cooling).- main objective was to acquire images of certain selected stars for ongoing photometric and astrometric analysis. - cloud unfortunately developed before being able to image a planned set of mira variables (U Her, U And, W And)
Continued monitoring of Barnard's Star shows good results with well defined proper motion and parallax combining to give a clear annual wobble in the star's path, relative to background stars.
| Barnard's Star, HIP 87937
(Ophiuchus) 2nd closest known star system to the Sun only 5.94 light years away Star with largest known proper motion Motion of Barnard's Star ( 2006-05-06 to 2007-07-23 ) |
|
| [ Images / Graphs / Parallax calculations of Barnards Star ] |
Back to Top
Images collected for Astrometric Monitoring
of Nearby Stars Project
Images collected for Photometric Monitoring
of Variable Stars
Back to Top
| This Web Page: | CCD Images - Session 296 (2008-07-23) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
