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HD 212545


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New UBVRI photometry for 900 supergiants
A description is presented of the results obtained in connection with asystematic program of supergiant photometry on the Johnson UBVRI system.During the eight years after the start of the program, almost 1000 starshave been observed, about 400 three or more times each. The originalselection of stars used the spectral type catalog of Jaschek et al.(1964) to choose supergiants. Since observations were possible from bothChile and Canada, no declination limits were imposed, and no particularselection criteria were imposed other than to eliminate carbon stars.These are so red as to require enormous extrapolations of thetransformation equations.

Recherches sur la loi d'absorption de la poussière interstellaire et sur le spectre continu des étoiles O et B
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kanatli At
Sað Açýklýk:22h24m27.40s
Yükselim:+35°25'59.3"
Görünürdeki Parlaklýk:7.307
Uzaklýk:289.855 parsek
özdevim Sað Açýklýk:-16.4
özdevim Yükselim:-21.7
B-T magnitude:9.312
V-T magnitude:7.473

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 212545
TYCHO-2 2000TYC 2742-267-1
USNO-A2.0USNO-A2 1200-19170396
HIPHIP 110603

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