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Speckle Interferometry at the US Naval Observatory. VI.
The results of 1068 speckle interferometric observations of doublestars, made with the 26 inch (0.66 m) refractor of the US NavalObservatory, are presented. These observations are averaged into 841means of 815 binary stars. The systems range in separation from 0.22" to6.01" with a mean separation of 2.21" and have a limiting secondarymagnitude of V=12.5. This is the sixth in a series of papers presentingmeasures obtained with this system, and it covers the period 1999January 1 through 2000 January 9.
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Observation and Astrometry data
| Constellation: | Libra |
| Right ascension: | 15h44m59.68s |
| Declination: | -15°10'30.2" |
| Apparent magnitude: | 8.515 |
| Distance: | 100.604 parsecs |
| Proper motion RA: | 25.6 |
| Proper motion Dec: | -40.8 |
| B-T magnitude: | 9.071 |
| V-T magnitude: | 8.561 |
Catalogs and designations:
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