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HD 90227


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Optical identifications of IRAS point sources - The Fornax, Hydra I and Coma clusters
Optical identifications are presented for 66 IRAS point sources in theregion of the Fornax cluster of galaxies, 106 IRAS point sources in theregion of the Hydra I cluster of galaxies (Abell 1060), and 59 IRASpoint sources in the region of the Coma cluster of galaxies (Abell1656). Eight other sources in Hydra I do not have optical counterpartsand are very probably due to IR cirrus. Twenty-three (35 percent) of theFornax sources are associated with stars and 43 (65 percent) withgalaxies; 48 (42 percent) of the Hydra I sources are associated withstars and 58 (51 percent) with galaxies; 18 (31 percent) of the Comasources are associated with stars and 41 (69 percent) with galaxies. Thestellar and infrared cirrus surface density is consistent with thegalactic latitude of each field.

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Osservazione e dati astrometrici

Costellazione:Idra
Ascensione retta:10h24m26.09s
Declinazione:-25°33'56.7"
Magnitudine apparente:7.052
Distanza:221.729 parsec
Moto proprio RA:-78.6
Moto proprio Dec:16.7
B-T magnitude:8.715
V-T magnitude:7.19

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 90227
TYCHO-2 2000TYC 6623-1119-1
USNO-A2.0USNO-A2 0600-13341041
HIPHIP 50959

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