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NGC 492


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Galaxy coordinates. II. Accurate equatorial coordinates for 17298 galaxies
Using images of the Digitized Sky Survey we measured coodinates for17298 galaxies having poorly defined coordinates. As a control, wemeasured with the same method 1522 galaxies having accurate coordinates.The comparison with our own measurements shows that the accuracy of themethod is about 6 arcsec on each axis (RA and DEC).

H I 21 centimeter observations and I-band CCD surface photometry of spiral galaxies behind the Virgo Cluster and toward its antipode
Sample selection, radio and optical data acquisition and reduction, andobservation results are presented for spiral galaxies behind the VirgoCluster and toward its antipode. I-band CCD photometry was obtained forall the bright galaxies and part of the sample of faint galaxies in thetwo local volumes was studied. The statistical properties of the galaxysamples are discussed.

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Miembro de los siguientes grupos:

Datos observacionales y astrométricos

Constelación:Piscis, Peces
Ascensión Recta:01h22m13.60s
Declinación:+05°25'01.0"
Dimensión Aparente:0.617′ × 0.513′

Catálogos y designaciones:
Nombres Propios   (Edit)
NGC 2000.0NGC 492
HYPERLEDA-IPGC 4976
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