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HD 30881


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Fast digital spectrophometry of celestial bodies
An original digital slitless spectrophotometer with transparentdiffraction gratings has constructed, adjusted, and tested at theCrimean Astrophysical Observatory. It is mounted on the 0.5-m meniscustelescope, has high sensitivity, and enables spectrophotometricobservations of celestial bodies in the region 370-740 nm with exposureof several minutes and absolute photometric accuracy of several percent.The spectrophotometer is intended for studies of rapid variations in thespectra of stars, asteroids, comet nuclei, bright galactic nuclei, etc.

Regional Spectrophotometric Standards of Intermediate Brightness - Standards around the Northern Celestial Pole
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Interstellar Absorption in the North Equatorial Polar Region.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1962ApJ...136..363A&db_key=AST

Photographic magnitudes of stars brighter than 7m.75 between +75° and +80° declination (Errata: 11 270)
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Osservazione e dati astrometrici

Costellazione:Cefeo
Ascensione retta:05h24m13.91s
Declinazione:+86°17'23.0"
Magnitudine apparente:8.012
Distanza:244.499 parsec
Moto proprio RA:6.1
Moto proprio Dec:-25.8
B-T magnitude:8.052
V-T magnitude:8.016

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 30881
TYCHO-2 2000TYC 4625-291-1
USNO-A2.0USNO-A2 1725-00229330
HIPHIP 25267

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