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Lithium in the Coma star cluster
Lithium content of five Am stars and 18 F dwarfs of the Coma cluster wasinvestigated, using high-resolution spectral observations with thecoudespectrograph of the Canada-France-Hawaii telescope. Abundances ofboth Li and Fe were determined by a model atmosphere abundance analysis.It was found that two F stars that have T(eff) range of 6400-6700 K arevery depleted in Li. The five Am stars show real differences relative toone another, in both Li content and Li-line strength, presumably due todiffusion and mass loss.
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Observation and Astrometry data
| Constellation: | Centaurus |
| Right ascension: | 12h26m56.62s |
| Declination: | -47°23'48.4" |
| Apparent magnitude: | 8.247 |
| Distance: | 212.314 parsecs |
| Proper motion RA: | 37.9 |
| Proper motion Dec: | -20.1 |
| B-T magnitude: | 9.911 |
| V-T magnitude: | 8.385 |
Catalogs and designations:
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INHABITED SKY
