Contents
Images
Upload your image
DSS Images Other Images
Related articles
Micrometer Measures of Double Stars
Micrometer measures of 795 double stars made with the 26 inch (0.66 m)refractor of the US Naval Observatory from 1984 to 1990 are presented.
| Visual multiples. VII - MK classifications
Classifications are given for 865 components of visual multiples; theyshow no systematic differences from the MK system, and the random errorsare one subclass in type and two-thirds of a luminosity class. It isfound that at least 1% of the F-type IV and V stars are weak-lined, 32%of the A4-F1 IV and V stars are Am, and 5% of the A0-A3 IV and V starsare early-type Am. Attention is called to the large fraction (55%) ofthe A3-A9 III-V stars that are of luminosity classes III or IV, unlikethe percentage (16%) at neighboring types.
|
Submit a new article
Related links
Submit a new link
Member of following groups:
|
Observation and Astrometry data
| Constellation: | しし座 |
| Right ascension: | 11h36m14.61s |
| Declination: | +03°18'04.0" |
| Apparent magnitude: | 7.196 |
| Distance: | 215.517 parsecs |
| Proper motion RA: | -32.2 |
| Proper motion Dec: | -39.7 |
| B-T magnitude: | 8.381 |
| V-T magnitude: | 7.294 |
Catalogs and designations:
|
