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HD 22852


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MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington
MK spectral classifications are given for 591 stars which are used fortime and latitude observations at Mizusawa and Washington. Theclassifications in the MK system were made by slit spectrograms ofdispersion 73 A/mm at H-gamma which were taken with the 91 cm reflectorat the Okayama Astrophysical Observatory. Photometric observations in UBV were made with the 1-meter reflector at the Flagstaff Station of U.S.Naval Observatory. The spectrum of HD 139216 was found to show a strongabsorption line of H-beta. The following new Am stars were found:HD9550, 25271, 32784, 57245, 71494, and 219109. The following new Apstars were found: HD6116, 143806, 166894, 185171, and 209260. The threestars, HD80492, 116204, and 211376, were found to show the emission inCaII H and K lines.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Boga
Sað Açýklýk:03h40m20.51s
Yükselim:+04°55'12.1"
Görünürdeki Parlaklýk:9.422
özdevim Sað Açýklýk:38.9
özdevim Yükselim:-31.4
B-T magnitude:10.053
V-T magnitude:9.475

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 22852
TYCHO-2 2000TYC 68-455-1
USNO-A2.0USNO-A2 0900-00839687

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