Source page for 3C457

FieldUnitsValue
3CRR name 3C457
IAU name 2309+184
Redshift 0.428 (r)
178-MHz flux(Jy)14.3
Sp. index 1.01
FR class II (r)
5-GHz core flux(mJy)2.1 (r)
Old radio position(reference) (r)
`Best' radio map(reference) (r)
RA(B1950)23 09 38.530
DEC(B1950)+18 29 22.00
Optical position(reference) (r)
Type 1
LAS(arcsec)210
Size(kpc)1170
Scale(kpc/arcsec)5.59
Luminosity distance(Mpc)2350
178-MHz luminosity(W/Hz/sr)757 x 1024
B magnitude(mag)--
V magnitude(mag)19.5 (r) (n)
R magnitude(mag)--
r magnitude(mag)--
Radio RA(J2000)23 12 07.588
Radio DEC(J2000)+18 45 41.76
New IAU name J2312+187

See the image of this source in the 3CRR Atlas.