N/A

Position Reference:2007SDSS6.C...0000:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  128.890603   51.214652 08h35m33.745s +51d12m52.75s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  129.798215   51.038190 08h39m11.571s +51d02m17.48s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  117.438902   31.409400                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  118.139482   31.414906                              5.00E-01  5.00E-01    0
Galactic              167.852590   37.451538                              5.00E-01  5.00E-01    0
SuperGalactic          43.477905  -19.470642                              5.00E-01  5.00E-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]
0.106
0.089
0.067
0.053
0.037
0.104
0.081
0.056
0.042
0.031
0.017
0.011
0.007
0.004

  

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


Bandpass [µm]
Aλ [mag]
Landolt
U
(0.35)
 0.106
Landolt
B
(0.43)
 0.089
Landolt
V
(0.54)
 0.067
Landolt
R
(0.64)
 0.053
Landolt
I
(0.80)
 0.037
CTIO
U
(0.37)
 0.101
CTIO
B
(0.43)
 0.089
CTIO
V
(0.55)
 0.066
CTIO
R
(0.65)
 0.052
CTIO
I
(0.80)
 0.037
UKIRT
J
(1.25)
 0.017
UKIRT
H
(1.66)
 0.011
UKIRT
K
(2.19)
 0.007
UKIRT
L'
(3.78)
 0.004
Gunn
g
(0.52)
 0.071
Gunn
r
(0.66)
 0.050
Gunn
i
(0.79)
 0.038
Gunn
z
(0.91)
 0.030
Spinrad
R_S
(0.69)
 0.047
Stromgren
u
(0.35)
 0.106
Stromgren
b
(0.47)
 0.082
Stromgren
v
(0.41)
 0.093
Stromgren
beta
(0.49)
 0.078
Stromgren
y
(0.55)
 0.066
SDSS
u
(0.36)
 0.104
SDSS
g
(0.47)
 0.081
SDSS
r
(0.62)
 0.056
SDSS
i
(0.75)
 0.042
SDSS
z
(0.89)
 0.031
DSS-II
g
(0.46)
 0.083
DSS-II
r
(0.65)
 0.051
DSS-II
i
(0.81)
 0.036
PS1
g
(0.49)
 0.078
PS1
r
(0.62)
 0.056
PS1
i
(0.75)
 0.041
PS1
z
(0.87)
 0.032
PS1
y
(0.97)
 0.027
PS1
w
(0.62)
 0.057
LSST
u
(0.37)
 0.102
LSST
g
(0.48)
 0.079
LSST
r
(0.62)
 0.056
LSST
i
(0.75)
 0.041
LSST
z
(0.87)
 0.032
LSST
y
(0.97)
 0.027
WFPC2
F300W
(0.31)
 0.120
WFPC2
F450W
(0.46)
 0.084
WFPC2
F555W
(0.54)
 0.068
WFPC2
F606W
(0.60)
 0.059
WFPC2
F702W
(0.69)
 0.048
WFPC2
F814W
(0.79)
 0.038
WFC3
F105W
(1.04)
 0.024
WFC3
F110W
(1.12)
 0.022
WFC3
F125W
(1.23)
 0.018
WFC3
F140W
(1.37)
 0.015
WFC3
F160W
(1.53)
 0.013
WFC3
F200LP
(0.55)
 0.073
WFC3
F218W
(0.22)
 0.190
WFC3
F225W
(0.24)
 0.171
WFC3
F275W
(0.27)
 0.135
WFC3
F300X
(0.29)
 0.128
WFC3
F336W
(0.34)
 0.109
WFC3
F350LP
(0.59)
 0.064
WFC3
F390W
(0.40)
 0.096
WFC3
F438W
(0.43)
 0.089
WFC3
F475W
(0.48)
 0.080
WFC3
F475X
(0.50)
 0.076
WFC3
F555W
(0.53)
 0.070
WFC3
F600LP
(0.74)
 0.044
WFC3
F606W
(0.59)
 0.061
WFC3
F625W
(0.62)
 0.055
WFC3
F775W
(0.76)
 0.040
WFC3
F814W
(0.80)
 0.038
WFC3
F850LP
(0.91)
 0.030
ACS
clear
(0.62)
 0.060
ACS
F435W
(0.43)
 0.089
ACS
F475W
(0.48)
 0.080
ACS
F550M
(0.56)
 0.064
ACS
F555W
(0.54)
 0.068
ACS
F606W
(0.59)
 0.061
ACS
F625W
(0.63)
 0.054
ACS
F775W
(0.77)
 0.040
ACS
F814W
(0.80)
 0.037
ACS
F850LP
(0.90)
 0.030
DES
g
(0.48)
 0.079
DES
r
(0.64)
 0.053
DES
i
(0.78)
 0.039
DES
z
(0.91)
 0.030
DES
Y
(0.99)
 0.026


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]
0.135
0.107
0.082
0.066
0.048
0.128
0.094
0.068
0.052
0.037
0.022
0.014
0.009
0.004


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.110 mag 

See Notes on Galactic Extinction for important caveats.

Helio. Radial Velocity     :        27 +/-       22 km/s SLS  
Redshift                   :  0.000089 +/- 0.000072  SLS   2016SDSSD.C...0000:

Spectral Type              : Point Src [SDSS]    
Magnitude and Filter       : 20.9g
Spare 3                    :  0.07
Spare 4                    :  0.05

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)      5 photometric data point(s)      4 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :      27 +/-     22 km/s SLS  2016SDSSD.C...0000:
V (Kinematic LSR)          :      26 +/-     22 km/s SLS  1986MNRAS.221.1023K
V (Galactocentric GSR)     :      63 +/-     22 km/s SLS  1991RC3.9.C...0000d
V (Local Group)            :      79 +/-     22 km/s SLS  1996AJ....111..794K
V (3K CMB)                 :     174 +/-     24 km/s SLS  1996ApJ...473..576F
V (Virgo Infall only)      :      89 +/-     22 km/s SLS  2000ApJ...529..786M
V (Virgo + GA only)        :      94 +/-     22 km/s SLS  2000ApJ...529..786M
V (Virgo + GA + Shapley)   :      94 +/-     22 km/s SLS  2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    0.86 +/-   0.30 Mpc      (m-M) = 24.67 +/- 0.65 mag
D (Local Group)            :    1.08 +/-   0.31 Mpc      (m-M) = 25.16 +/- 0.55 mag
D (3K CMB)                 :    2.38 +/-   0.37 Mpc      (m-M) = 26.88 +/- 0.31 mag
D (Virgo Infall only)      :    1.21 +/-   0.31 Mpc      (m-M) = 25.42 +/- 0.49 mag
D (Virgo + GA only)        :    1.29 +/-   0.31 Mpc      (m-M) = 25.55 +/- 0.47 mag
D (Virgo + GA + Shapley)   :    1.29 +/-   0.31 Mpc      (m-M) = 25.56 +/- 0.47 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :       4 pc/arcsec =  0.004 kpc/arcsec =   0.25 kpc/arcmin =   0.01 Mpc/degree
Scale (Local Group)        :       5 pc/arcsec =  0.005 kpc/arcsec =   0.31 kpc/arcmin =   0.02 Mpc/degree
Scale (3K CMB)             :      12 pc/arcsec =  0.012 kpc/arcsec =   0.69 kpc/arcmin =   0.04 Mpc/degree
Scale (Virgo Infall only)  :       6 pc/arcsec =  0.006 kpc/arcsec =   0.35 kpc/arcmin =   0.02 Mpc/degree
Scale (Virgo + GA only)    :       6 pc/arcsec =  0.006 kpc/arcsec =   0.37 kpc/arcmin =   0.02 Mpc/degree
Scale(Virgo + GA + Shapley):       6 pc/arcsec =  0.006 kpc/arcsec =   0.38 kpc/arcmin =   0.02 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 = 265.776 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) =     27 km/sec  






Cosmology-Corrected Quantities [Ho =  73.00 km/sec/Mpc, Ωmatter =   0.27, Ωvacuum =   0.73]
[Redshift 0.000579 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        : 2.38 Mpc      (m-M) = 26.88 mag
Angular-Size Distance      : 2.38 Mpc      (m-M) = 26.88 mag
Co-Moving Radial Distance  : 2.38 Mpc      (m-M) = 26.88 mag
Co-Moving Tangential Dist. : 2.38 Mpc      (m-M) = 26.88 mag
Co-Moving Volume           : 5.63e-08 Gpc^3
Light Travel-Time          :    0.008 Gyr
Age at Redshift 0.000579   :   13.291 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):      12 pc/arcsec =  0.012 kpc/arcsec =   0.69 kpc/arcmin =   0.04 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.99769; Magnitude per Unit Area = 0.002513 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