TYC 3074-817-1

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The Program to Link the HIPPARCOS Reference Frame to an Extragalactic Reference System Using the Fine Guidance Sensors of the Hubble Space Telescope
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1997AJ....114.2796H&db_key=AST

Meridian observations made in Brorfelde (Copenhagen University Observatory) 1975-76.
This catalogue presents positions for selected faint stars mainly fromAGK3 observed with the 7" transit circle at Brorfelde. The stars aredistributed in 43 selected areas around radio sources and are suitableas reference stars for measuring the optical counterparts to the radiosources. The obscr 'itioi cre carried out from 1975.16 to 1976.04, andevery star was observed at least two times giving a m.s.e. of "13 forthe catalogue positions given in the FK4 system. These positions usedtogether with AGK3 proper motions will in the period 1975 to 1980 have am.s.e. at the epoch ranging from `:13 to `:15, which is less than halfof what is expected when using AGK3 positions. Key words: transit circle- catalogue of positions

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Dades d'Observació i Astrometria

Constel·lació:	Hercules
Ascensió Recta:	16^h40^m03.82^s
Declinació:	+39Â°45'32.7"
Magnitud Aparent:	10.616
Moviment propi RA:	0
Moviment propi Dec:	-4.3
B-T magnitude:	12.49
V-T magnitude:	10.771

Catàlegs i designacions:

Noms Propis
TYCHO-2 2000	TYC 3074-817-1
USNO-A2.0	USNO-A2 1275-09019122
HIP	HIP 81609

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