The Neil Gehrels Swift Observatory

General Information:

Swift Name:SWIFT J2258.9+4054
RA:344.7077 (J2000)
Dec:40.9320 (J2000)
S/N:10.82
Counterpart Name:UGC 12282
Ctpt RA:344.7312 (J2000)
Ctpt Dec:40.9315 (J2000)
Flux:19.44 (16.36, 22.71) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:1.73 (1.51, 1.96)
Chi2r:2.05
Redshift:0.0170
Luminosity:43.11 log[ergs s-1] (14-195 keV)
AS:1
Class:5
Type:Sy1.9

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J2258.9+4054

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J2258.9+4054

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J2258.9+4054

BAT Spectrum for SWIFT J2258.9+4054

Data last modified: 15 Sep 2025
Page last modified: 03 Jun 2025