N/A

Position Reference:2009ApJ...690..163R

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 283.2037709  20.5945762 18h52m48.905s +20d35m40.47s  3.00E-01  3.00E-01    0
Equatorial (J2000.0) 283.7426250  20.6594450 18h54m58.230s +20d39m34.00s  3.00E-01  3.00E-01    0
Ecliptic   (B1950.0) 287.0740489  43.2606794                              3.00E-01  3.00E-01    0
Ecliptic   (J2000.0) 287.7703927  43.2546361                              3.00E-01  3.00E-01    0
Galactic              51.8457776   8.5135224                              3.00E-01  3.00E-01    0
SuperGalactic         26.5757247  85.0494824                              3.00E-01  3.00E-01    0

 N/A 

 N/A 

Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map. 
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA; 
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with Rv = 3.1 and different source spectrum than SFD98.



    
 
L  a  n  d  o  l  t
S  D  S  S
U  K  I  R  T
Filter [µm]
U (0.35)
B (0.43)
V (0.54)
R (0.64)
I (0.80)
u (0.36)
g (0.47)
r (0.62)
i (0.75)
z (0.89)
J (1.25)
H (1.66)
K (2.19)
L' (3.78)
Aλ [mag]
1.343
1.123
0.849
0.672
0.466
1.313
1.023
0.708
0.526
0.391
0.220
0.139
0.094
0.047

  

Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
 


Bandpass [µm]
Aλ [mag]
Landolt
U
(0.35)
 1.343
Landolt
B
(0.43)
 1.123
Landolt
V
(0.54)
 0.849
Landolt
R
(0.64)
 0.672
Landolt
I
(0.80)
 0.466
CTIO
U
(0.37)
 1.272
CTIO
B
(0.43)
 1.128
CTIO
V
(0.55)
 0.831
CTIO
R
(0.65)
 0.656
CTIO
I
(0.80)
 0.470
UKIRT
J
(1.25)
 0.220
UKIRT
H
(1.66)
 0.139
UKIRT
K
(2.19)
 0.094
UKIRT
L'
(3.78)
 0.047
Gunn
g
(0.52)
 0.903
Gunn
r
(0.66)
 0.637
Gunn
i
(0.79)
 0.482
Gunn
z
(0.91)
 0.382
Spinrad
R_S
(0.69)
 0.595
Stromgren
u
(0.35)
 1.334
Stromgren
b
(0.47)
 1.038
Stromgren
v
(0.41)
 1.175
Stromgren
beta
(0.49)
 0.986
Stromgren
y
(0.55)
 0.832
SDSS
u
(0.36)
 1.313
SDSS
g
(0.47)
 1.023
SDSS
r
(0.62)
 0.708
SDSS
i
(0.75)
 0.526
SDSS
z
(0.89)
 0.391
DSS-II
g
(0.46)
 1.047
DSS-II
r
(0.65)
 0.647
DSS-II
i
(0.81)
 0.461
PS1
g
(0.49)
 0.983
PS1
r
(0.62)
 0.704
PS1
i
(0.75)
 0.521
PS1
z
(0.87)
 0.410
PS1
y
(0.97)
 0.337
PS1
w
(0.62)
 0.725
LSST
u
(0.37)
 1.284
LSST
g
(0.48)
 1.003
LSST
r
(0.62)
 0.704
LSST
i
(0.75)
 0.522
LSST
z
(0.87)
 0.410
LSST
y
(0.97)
 0.337
WFPC2
F300W
(0.31)
 1.519
WFPC2
F450W
(0.46)
 1.056
WFPC2
F555W
(0.54)
 0.853
WFPC2
F606W
(0.60)
 0.748
WFPC2
F702W
(0.69)
 0.603
WFPC2
F814W
(0.79)
 0.480
WFC3
F105W
(1.04)
 0.300
WFC3
F110W
(1.12)
 0.273
WFC3
F125W
(1.23)
 0.225
WFC3
F140W
(1.37)
 0.190
WFC3
F160W
(1.53)
 0.159
WFC3
F200LP
(0.55)
 0.916
WFC3
F218W
(0.22)
 2.404
WFC3
F225W
(0.24)
 2.165
WFC3
F275W
(0.27)
 1.700
WFC3
F300X
(0.29)
 1.620
WFC3
F336W
(0.34)
 1.379
WFC3
F350LP
(0.59)
 0.813
WFC3
F390W
(0.40)
 1.207
WFC3
F438W
(0.43)
 1.122
WFC3
F475W
(0.48)
 1.006
WFC3
F475X
(0.50)
 0.965
WFC3
F555W
(0.53)
 0.884
WFC3
F600LP
(0.74)
 0.552
WFC3
F606W
(0.59)
 0.771
WFC3
F625W
(0.62)
 0.700
WFC3
F775W
(0.76)
 0.509
WFC3
F814W
(0.80)
 0.476
WFC3
F850LP
(0.91)
 0.374
ACS
clear
(0.62)
 0.755
ACS
F435W
(0.43)
 1.118
ACS
F475W
(0.48)
 1.012
ACS
F550M
(0.56)
 0.812
ACS
F555W
(0.54)
 0.865
ACS
F606W
(0.59)
 0.765
ACS
F625W
(0.63)
 0.687
ACS
F775W
(0.77)
 0.505
ACS
F814W
(0.80)
 0.473
ACS
F850LP
(0.90)
 0.385
DES
g
(0.48)
 1.003
DES
r
(0.64)
 0.674
DES
i
(0.78)
 0.494
DES
z
(0.91)
 0.377
DES
Y
(0.99)
 0.328


For completeness, we include the original SFD98 values:


    
 
L  a  n  d  o  l  t
S  D  S  S
U  K  I  R  T
Filter [µm]
U (0.34)
B (0.44)
V (0.54)
R (0.65)
I (0.81)
u (0.35)
g (0.49)
r (0.63)
i (0.78)
z (0.93)
J (1.27)
H (1.67)
K (2.22)
L' (3.81)
Aλ [mag]
1.639
1.302
1.000
0.806
0.585
1.555
1.144
0.830
0.629
0.446
0.272
0.174
0.111
0.046

See Notes on Galactic Extinction for important caveats.

Helio. Radial Velocity     :    749361 +/-        0 km/s UUN  
Redshift                   :  2.499600 +/- 0.000000  UUN   2015A&A...584A..48H

Description                     : Swift               
Log Flux Density (ergs/s/cm^2^) :      
Passband                        :      
Spare 4                         :      

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.

Additional detailed measurements with references are also available by clicking below:
1 Redshift data point(s)      12 photometric data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :  749361 +/-      0 km/s UUN  2015A&A...584A..48H
V (Kinematic LSR)          :  749381 +/-      0 km/s UUN  1986MNRAS.221.1023K
V (Galactocentric GSR)     :  749548 +/-      7 km/s UUN  1991RC3.9.C...0000d
V (Local Group)            :  749593 +/-     14 km/s UUN  1996AJ....111..794K
V (3K CMB)                 :  749196 +/-     12 km/s UUN  1996ApJ...473..576F
V (Virgo Infall only)      :  749589 +/-     14 km/s UUN  2000ApJ...529..786M
V (Virgo + GA only)        :  749525 +/-     15 km/s UUN  2000ApJ...529..786M
V (Virgo + GA + Shapley)   :  749523 +/-     15 km/s UUN  2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     : 10267.8 +/-  718.7 Mpc      (m-M) = 45.06 +/- 0.15 mag
D (Local Group)            : 10268.4 +/-  718.8 Mpc      (m-M) = 45.06 +/- 0.15 mag
D (3K CMB)                 : 10263.0 +/-  718.4 Mpc      (m-M) = 45.06 +/- 0.15 mag
D (Virgo Infall only)      : 10268.3 +/-  718.8 Mpc      (m-M) = 45.06 +/- 0.15 mag
D (Virgo + GA only)        : 10267.5 +/-  718.7 Mpc      (m-M) = 45.06 +/- 0.15 mag
D (Virgo + GA + Shapley)   : 10267.4 +/-  718.7 Mpc      (m-M) = 45.06 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :   49780 pc/arcsec = 49.780 kpc/arcsec = 2986.77 kpc/arcmin = 179.21 Mpc/degree
Scale (Local Group)        :   49783 pc/arcsec = 49.783 kpc/arcsec = 2986.95 kpc/arcmin = 179.22 Mpc/degree
Scale (3K CMB)             :   49756 pc/arcsec = 49.756 kpc/arcsec = 2985.37 kpc/arcmin = 179.12 Mpc/degree
Scale (Virgo Infall only)  :   49782 pc/arcsec = 49.782 kpc/arcsec = 2986.94 kpc/arcmin = 179.22 Mpc/degree
Scale (Virgo + GA only)    :   49778 pc/arcsec = 49.778 kpc/arcsec = 2986.68 kpc/arcmin = 179.20 Mpc/degree
Scale(Virgo + GA + Shapley):   49778 pc/arcsec = 49.778 kpc/arcsec = 2986.67 kpc/arcmin = 179.20 Mpc/degree











To Search for Nearby Objects (Physical Companions):
Enter Your Preferred Values and click on "Submit Environment Search" button 

Search for Objects within +/-arcmin where 100 kpc =  0.033 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) = 749361 km/sec  






Cosmology-Corrected Quantities [Ho =  73.00 km/sec/Mpc, Ωmatter =   0.27, Ωvacuum =   0.73]
[Redshift 2.499048 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        :    20126 Mpc      (m-M) = 46.52 mag
Angular-Size Distance      :     1644 Mpc      (m-M) = 41.08 mag
Co-Moving Radial Distance  :     5752 Mpc      (m-M) = 43.80 mag
Co-Moving Tangential Dist. :     5752 Mpc      (m-M) = 43.80 mag
Co-Moving Volume           : 797 Gpc^3
Light Travel-Time          :   10.698 Gyr
Age at Redshift 2.499048   :    2.601 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):    7969 pc/arcsec =  7.969 kpc/arcsec = 478.16 kpc/arcmin =  28.69 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.00667; Magnitude per Unit Area = 5.439 mag







To change Cosmological Input Parameters for Derived Quantities:
Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button 

HoΩmatterΩvacuum
    


Correct Redshift To the Reference Frame defined by:
 3K CMB
 Virgo Infall only
 (Virgo + GA) only
 Virgo + GA + Shapley


as Input for Calculation of the Distances and Cosmology-Corrected Quantities