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HD 57450


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Photoelectric observations of lunar occultations. XI
Occultation observations of 466 events are presented. These includediameter measures of Aldebaran under very bad conditions and a gooddiameter measure of 82 Vir. The list includes 91 reappearances andobservations of 34 double or multiple stars, both new and previouslyknown. The inconsistencies of the observations of Kui 88 are discussed.Further observations are most desirable.

Photoelectric observations of lunar occultations. X
Photoelectric occulation results for 461 events observed during 15months are reported. They include 77 reappearances, 4 determinations ofangular diameter, 38 analyses of double or multiple stars including twopreviously unknown bright stars, and 8 previously known bright double ormultiple stars.

Vitesses radiales dans 4 champs de petite latitude galactique.
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Osservazione e dati astrometrici

Costellazione:Gemelli
Ascensione retta:07h21m54.77s
Declinazione:+16°40'44.2"
Magnitudine apparente:9.299
Moto proprio RA:0
Moto proprio Dec:-3.5
B-T magnitude:9.278
V-T magnitude:9.298

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 57450
TYCHO-2 2000TYC 1347-195-1
USNO-A2.0USNO-A2 1050-05064472

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