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SANTIAGO 91, a right ascension catalogue of 3387 stars (equinox J2000).
The positions in right ascension of 3387 stars belonging to the Santiago67 Catalogue, observed with the Repsold Meridian Circle at Cerro Calan,National Astronomical Observatory, during the period 1989 to 1994, aregiven. The average mean square error of a position, for the wholeCatalogue, is +/-0.009 s. The mean epoch of the catalogue is 1991.84.
| Distribution of B5 to A5 stars at (l, b) = (253 deg, -7 deg)
A study to V of about 12 mag is conducted for the distribution ofinterstellar extinction and early type stars (up to A5) in the (l, b) =(253 deg, -7 deg) field. The space density of B5, B8-A0, and A2-A5 starsis found to be normal for a field outside the galactic plane, and thestellar and extinction data indicate that the direction in question liesout of the matter plane of the Milky Way at least to 3 kpc. The higherextinction of Bochun 15 and the absence of background galaxies, however,suggest the possible presence of the galactic warp at -7 deg, atdistances beyond about 5 kpc, as well as a total higher extinction thanthe maximum of E(B-V) = 0.53 for d greater than 10 kpc, as found at (l,b) = (245 deg, zero deg).
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Member of following groups:
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Observation and Astrometry data
| Constellation: | Πρύμνη |
| Right ascension: | 07h28m31.89s |
| Declination: | -33°28'41.5" |
| Apparent magnitude: | 9.051 |
| Proper motion RA: | -8.4 |
| Proper motion Dec: | 17 |
| B-T magnitude: | 10.606 |
| V-T magnitude: | 9.18 |
Catalogs and designations:
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INHABITED SKY
