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Spectral types for early-type stars observed by SKYLAB
MK spectral types are presented for 246 early-type stars observed withthe S-019 ultraviolet stellar astronomy experiment on Skylab. K-linetypes are also given where applicable, and various peculiar stars areidentified. The peculiar stars include five silicon stars, a shell star,a helium-rich star, a silicon-strontium star, a chromium-europium star,and two marginal metallic-line stars.
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Observation and Astrometry data
| Constellation: | Cygnus |
| Right ascension: | 20h08m48.51s |
| Declination: | +39°47'54.0" |
| Apparent magnitude: | 7.185 |
| Distance: | 510.204 parsecs |
| Proper motion RA: | 2.2 |
| Proper motion Dec: | -2.1 |
| B-T magnitude: | 7.067 |
| V-T magnitude: | 7.176 |
Catalogs and designations:
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