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NGC 3545B


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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).

Velocity measurements in the Coma filament of galaxies
58 new velocity measurements of galaxies located in the Coma filamentcarried out with the 2.5-m Issac Newton telescope at La Palma arepresented. These optical observations complete a sample of 21-cm lineobservations in the same region up to the 15.0th magnitude.

Photoelectric Observations of Interacting and Compact Galaxies
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Radial velocities of double galaxies
Spectral observations of 92 galaxies in isolated pairs have been carriedout. In 52 cases radial velocities were measured. The mean value of theorbital mass-to-luminosity ratio for 18 pairs is (16.2 plus or minus10.0) times the solar value.

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Observation and Astrometry data

Constellation:Ursa Major
Right ascension:11h10m13.20s
Declination:+36°57'59.0"
Aparent dimensions:0.447′ × 0.447′

Catalogs and designations:
Proper Names   (Edit)
NGC 2000.0NGC 3545B
HYPERLEDA-IPGC 33893
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