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BL Lacertae

1 object(s) found in NED.    Skyplot(first 100)

Detailed information for each object

Object Names                   Type      Object Names                   Type  
BL LACERTAE                    V*        TXS 2200+420                   RadioS
[HB89] 2200+420                QSO       VRO 42.22.01                   RadioS
IRAS F22006+4202               IrS       ICRF J220243.2+421639          RadioS
MG4 J220245+4216               RadioS    IERS B2200+420                 RadioS
B3 2200+420                    RadioS    JVAS J2202+4216                RadioS
87GB 220040.2+420203           RadioS    RGB J2202+422                  RadioS
87GB[BWE91] 2200+4202          RadioS    RX J2202.7+4216                XrayS 
[WB92] 2200+4202               RadioS    1RXS J220244.4+421626          XrayS 
EGO 2200+420                   VisS      1ES 2200+420                   XrayS 
S4 2200+42                     RadioS    3EG J2202+4217                 GammaS
OY +401                        RadioS    [KWP81] 2200+42                RadioS

Position Reference:1995AJ....110..880J

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                                Major     Minor   PA(deg)
Equatorial (B1950.0) 330.1640512  42.0356931 22h00m39.3723s +42d02m08.495s  1.00E-04  8.00E-05    0
Equatorial (J2000.0) 330.6803804  42.2777719 22h02m43.2913s +42d16m39.979s  1.00E-04  8.00E-05    0
Ecliptic   (B1950.0) 353.5714127  49.5820384                              1.00E-04  8.00E-05   32
Ecliptic   (J2000.0) 354.2623396  49.5818269                              1.00E-04  8.00E-05   32
Galactic              92.5895561 -10.4410846                              1.00E-04  8.00E-05   37
SuperGalactic        339.8329650  41.9567227                              1.00E-04  8.00E-05  109

Basic Data 
Helio. radial velocity     :    20566     +/- 120      km/s;
Redshift                   :  0.06860     +/-  0.00040; 1995ApJ...452L...5V
Magnitude                  : 14.5 
Description                : Opt.var.       BLLAC

Galactic Extinction (Burstein & Heiles): A_B = 1.320 mag; 1982AJ.....87.1165B 
Galactic Extinction (Schlegel et al.):   A_B = 1.420 mag; 1998ApJ...500..525S
 E(B-V) = 0.329 mag. The following values assume an R_V = 3.1 extinction curve.
 See Cardelli et al. (1989ApJ...345..245C) for other conversion factors.
 Bandpass           U     B     V     R     I     J     H     K     L'
 Wavelength [um]  0.34  0.44  0.54  0.65  0.80  1.27  1.67  2.22  3.81
 A_lambda  [mag]  1.788 1.420 1.091 0.880 0.638 0.297 0.190 0.121 0.050
 

• image(s)
  
• 575 reference(s)
  
• 104 photometric data point(s)
  
• 7 position data point(s)
  
• 9 note(s)
  
• HB89 data
  

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