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HD 2647


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VRI photometry of selected SAO stars
Johnson V, R, and I photoelectric photometry has been obtained for 199SAO stars in support of the Near Infrared Photographic Sky Survey. Thesedata are utilized in the calibration of survey photographs and arepresented here to assist other programs reliant upon access tophotometry in the photographic infrared.

Photoelectric measurements of lunar occultations. VIII
Photoelectric timings are reported for 276 lunar occultation eventswhich were observed between March 1975 and February 1976. The timings(in UTC) are based on Loran G equipment of a lunar laser-ranging groupor on WWV signals. Angular diameters are determined for HR 5301, HD176124, Chi-1-Orionis, and HR 601. Twenty cases of possible or actualdouble stars, including Beta Capricorni, are noted along with oneprobable triple system (51 Piscium). Several technical and computationaldifficulties encountered in this program are discussed.

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Osservazione e dati astrometrici

Costellazione:Pesci
Ascensione retta:00h30m07.38s
Declinazione:+06°28'03.5"
Magnitudine apparente:9.529
Moto proprio RA:-16.8
Moto proprio Dec:-6.6
B-T magnitude:10.13
V-T magnitude:9.579

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 2647
TYCHO-2 2000TYC 16-551-1
USNO-A2.0USNO-A2 0900-00117160
HIPHIP 2356

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