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Measurements of 258 radial velocities in two fields near Alpha Per
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...68..515F&db_key=AST
| Identification of the optical counterpart of the X-ray source V0332 + 53
The optical counterpart of the X-ray transient V0332 + 53 is a star ofmagnitudes V = 15.13 and B - V = 2.31. The line H-alpha has a P-Cygniprofile with the absorption component at -1400 km/s. The possibility ofa 2.198 s optical periodicity, at 3.4 sigma level, is investigated.
| A spectrophotometric survey of stars along the Milky Way. IV
In the present paper a catalogue of spectrophotometric quantities,spectral types, monochromatic magnitudes and colour equivalents is givenfor all stars brighter than the magnitude m4400 = 10.5 in aregion of the Milky Way in Perseus. No absorption is found for starscloser than about r = 100 pc. The absorbing clouds are situated atdistances closer than 1 kpc and at about 2.5 kpc in the local arm andthe Perseus arm, respectively. The space between the two arms is freefrom absorption. It is also concluded that the Perseus arm continuesbeyond l = 140 deg, containing not only hydrogen gas but also dust to atleast l = 150 deg), while the content of OB stars decreases abruptly atl = 140 deg.
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Observation and Astrometry data
| Constellation: | Giraffe |
| Right ascension: | 03h33m22.69s |
| Declination: | +52°57'09.4" |
| Apparent magnitude: | 8.936 |
| Distance: | 211.416 parsecs |
| Proper motion RA: | -5.9 |
| Proper motion Dec: | -11.3 |
| B-T magnitude: | 9.275 |
| V-T magnitude: | 8.964 |
Catalogs and designations:
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