| Autor: |
Laugalys V., Boyle R. P., Kazlauskas A., Vrba F. J., Philip A. G. Davis, Straižys V. |
| Jazyk: |
angličtina |
| Rok vydání: |
2003 |
| Předmět: |
|
| Zdroj: |
Open Astronomy, Vol 12, Iss 4, Pp 497-502 (2003) |
| Druh dokumentu: |
article |
| ISSN: |
2543-6376 |
| DOI: |
10.1515/astro-2017-0071 |
| Popis: |
The accuracy of new CCD photometry in the Vilnius system of the M67 cluster is analyzed. The observational material is obtained during six observing runs in 1994-2001 with the 1 meter telescope of the USNO Flagstaff Station. The main task was to establish CCD standards of high accuracy and to eliminate large-scale errors from our CCD photometry. We compare our results with the published CCD photometric data in other photometric systems. The comparison reveals considerable systematic errors in some datasets. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
