| Autor: |
A.R. Upgren, E.W. Weis, H.-H. Fu, J.T. Lee |
| Rok vydání: |
1988 |
| Zdroj: |
Symposium - International Astronomical Union. 133:469-473 |
| ISSN: |
0074-1809 |
| DOI: |
10.1017/s0074180900140045 |
| Popis: |
Measures of 25 members of the Hyades and about 260 field stars have been made for parallax and proper motion in two ways, automatically using a PDS microdensitometer and manually using a conventional measuring machine. Reductions show the parallax errors from the former are about half those of the latter method. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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