3C 274

B1228+126

General Data

S178 (Jy) 1144.5Benn62
Alpha 0.79 LRL83
Spectrum LR00
ID GalaxyBSS49
ID redshift 0.0043HMS56
Cluster redshift 0.0040Atlas
5 GHz Core (mJy)   
RM (rad/m²) 872.0SKB81
Lambda½ (cm) 3TI80

Position

(Equinox 1950.0)
Right Ascension Declination ofRef
12h 28m 17s.551 ±0.014 12° 40' 01".79 ±0.14OpticalTU75A

Spectral Data

Radio Spectrum
FrequencyFlux densityErrorReference
MHzJyJy
12um0.2190.033GMN87
25um0.1870.028GMN87
60um0.5460.082GMN87
100um0.5590.084GMN87
896006.780.26KNPW79
1490028.400.42LP80
1070035.550.98LP80
500981.74.3KNPW79
500969.62.1KNPW79
500071.570.99LP80
2700120.96.1KNPW79
2695119.61.2LP80
2650126.74.0KNPW79
1400220.29.3LP80
75033717LP80
63546019KNPW79
40851078KNPW79
178114457LP80
801520230KNPW79
384210210LP80
26.34340230LP80
264400230KNPW79
22.255610500LP80
10100002400LP80

Optical Magnitudes
BandmagnitudeErrordereddened?ApertureReference
B9.68 0.10YLRLR00
V8.70 0.10YLRLR00
R(c)8.08 0.10YLRLR00

NB: "LR" in the aperture column indicates a magnitude measured on the Laing & Riley system.

Optical Line emission
LinefluxErrorReference
10-16erg/s/cm²
H-alpha+[NII]80001600.0MC88
(In S.I., the units are 10-17W m-2).


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Page created: 1998 Mar 12 22:29:13
J. P. Leahy
jpl@jb.man.ac.uk