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HD 84220


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The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.

Photoelectric observations of lunar occultations. XV
The last (or possibly penultimate) paper in a series on lunaroccultations presents observations of 404 phenomena, preceded by somegeneral remarks of a retrospective nature. The series of observationsbegan in 1968. Data for 20 doubles or suspected doubles are presented,ranked in order of certainty, with designation 3 representing thesurest. Thirteen of the cases refer to stars not previously noted asdoubles. Seven determinations of angular diameters are presented, ofwhich three have been previously observed.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Aslan
Sað Açýklýk:09h44m00.98s
Yükselim:+17°40'24.2"
Görünürdeki Parlaklýk:8.424
Uzaklýk:216.92 parsek
özdevim Sað Açýklýk:-4.4
özdevim Yükselim:-21.4
B-T magnitude:9.677
V-T magnitude:8.528

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 84220
TYCHO-2 2000TYC 1413-199-1
USNO-A2.0USNO-A2 1050-06116206
HIPHIP 47745

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