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HD 102066


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A second list of wide visual binaries
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A second list of wide visual binaries
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Common proper motion stars in the AGK 3
A search was made of common-proper-motion (CPM) systems among AGK 3stars. The selection of physical systems was based upon the ratiobetween the angular separation (rho) and the proper motion (mu); the CPMstars found are presented in two tables. Table I lists systems withrho/mu less than 1000 years. It contains 326 entries, and the proportionof optical pairs is estimated to be 1 percent. Table II lists systemswith rho/mu in the range 1000 to 3500 years; it contains 113 systems,but only 60 percent of them are physical. Nevertheless, these systemsoften have separations larger than 10,000 AU and are the mostinteresting for the study of the tail of the distribution function ofthe semimajor axes.

Sur un changement de forme de la queue de la Comète Jarlof-Achmarof-Hassel 1939 III et sa liaison probable avec deux éruptions solaires
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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Leone
Ascensione retta:11h44m50.79s
Declinazione:+11°23'07.9"
Magnitudine apparente:8.922
Distanza:117.647 parsec
Moto proprio RA:41.3
Moto proprio Dec:-146.7
B-T magnitude:9.555
V-T magnitude:8.975

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 102066
TYCHO-2 2000TYC 867-664-1
USNO-A2.0USNO-A2 0975-06796564
HIPHIP 57292
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