Antennae Galaxies

Key facts

Constellation

Corvus

Right ascension

12 01 53.0 / 12 01 53.5

Declination

−18 ° 52 ′ 03 ″ / −18 ° 53 ′ 10 ″

Redshift

0.005 417 ± 0.000 017 / 0.005 474 ± 0.000 030

Heliocentric radial velocity

1,624 ± 5 km/s / 1,641 ± 9 km/s

Galactocentric velocity

1,467 ± 8 km/s / 1,484 ± 11 km/s

Distance

71.75 ± 9.785 Mly (22 ± 3 Mpc )

Apparent magnitude v

11.2 / 11.08

Type

SB(s)m pec / SA(s)m pecLINERSbrst

Size

634,410 ly × 456,780 ly, (194.51 kpc × 140.05 kpc), ( diameter ; 27.0 B-mag arcsec ) /, 258,320 ly × 118,820 ly, (79.20 kpc × 36.43 kpc), ( diameter ; 25.5 B-mag arcsec )

Apparent size v

5.2′ × 3.1′ / 3.1′ × 1.6′