N/A

Position Reference:1998A&A...337...17A

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)    87.24825   -24.78448  05h48m59.58s  -24d47m04.1s  5.00E+00  5.00E+00    0
Equatorial (J2000.0)    87.76042   -24.77233  05h51m02.50s  -24d46m20.4s  5.00E+00  5.00E+00    0
Ecliptic   (B1950.0)    86.25098   -48.19445                              5.00E+00  5.00E+00    0
Ecliptic   (J2000.0)    86.94920   -48.18791                              5.00E+00  5.00E+00    0
Galactic               229.75577   -23.67579                              5.00E+00  5.00E+00    0
SuperGalactic          262.71909   -72.49330                              5.00E+00  5.00E+00    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]
0.133
0.112
0.084
0.067
0.046
0.131
0.102
0.070
0.052
0.039
0.022
0.014
0.009
0.005

  

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


Bandpass [µm]
Aλ [mag]
Landolt
U
(0.35)
 0.133
Landolt
B
(0.43)
 0.112
Landolt
V
(0.54)
 0.084
Landolt
R
(0.64)
 0.067
Landolt
I
(0.80)
 0.046
CTIO
U
(0.37)
 0.126
CTIO
B
(0.43)
 0.112
CTIO
V
(0.55)
 0.083
CTIO
R
(0.65)
 0.065
CTIO
I
(0.80)
 0.047
UKIRT
J
(1.25)
 0.022
UKIRT
H
(1.66)
 0.014
UKIRT
K
(2.19)
 0.009
UKIRT
L'
(3.78)
 0.005
Gunn
g
(0.52)
 0.090
Gunn
r
(0.66)
 0.063
Gunn
i
(0.79)
 0.048
Gunn
z
(0.91)
 0.038
Spinrad
R_S
(0.69)
 0.059
Stromgren
u
(0.35)
 0.133
Stromgren
b
(0.47)
 0.103
Stromgren
v
(0.41)
 0.117
Stromgren
beta
(0.49)
 0.098
Stromgren
y
(0.55)
 0.083
SDSS
u
(0.36)
 0.131
SDSS
g
(0.47)
 0.102
SDSS
r
(0.62)
 0.070
SDSS
i
(0.75)
 0.052
SDSS
z
(0.89)
 0.039
DSS-II
g
(0.46)
 0.104
DSS-II
r
(0.65)
 0.064
DSS-II
i
(0.81)
 0.046
PS1
g
(0.49)
 0.098
PS1
r
(0.62)
 0.070
PS1
i
(0.75)
 0.052
PS1
z
(0.87)
 0.041
PS1
y
(0.97)
 0.033
PS1
w
(0.62)
 0.072
LSST
u
(0.37)
 0.128
LSST
g
(0.48)
 0.100
LSST
r
(0.62)
 0.070
LSST
i
(0.75)
 0.052
LSST
z
(0.87)
 0.041
LSST
y
(0.97)
 0.034
WFPC2
F300W
(0.31)
 0.151
WFPC2
F450W
(0.46)
 0.105
WFPC2
F555W
(0.54)
 0.085
WFPC2
F606W
(0.60)
 0.074
WFPC2
F702W
(0.69)
 0.060
WFPC2
F814W
(0.79)
 0.048
WFC3
F105W
(1.04)
 0.030
WFC3
F110W
(1.12)
 0.027
WFC3
F125W
(1.23)
 0.022
WFC3
F140W
(1.37)
 0.019
WFC3
F160W
(1.53)
 0.016
WFC3
F200LP
(0.55)
 0.091
WFC3
F218W
(0.22)
 0.239
WFC3
F225W
(0.24)
 0.215
WFC3
F275W
(0.27)
 0.169
WFC3
F300X
(0.29)
 0.161
WFC3
F336W
(0.34)
 0.137
WFC3
F350LP
(0.59)
 0.081
WFC3
F390W
(0.40)
 0.120
WFC3
F438W
(0.43)
 0.112
WFC3
F475W
(0.48)
 0.100
WFC3
F475X
(0.50)
 0.096
WFC3
F555W
(0.53)
 0.088
WFC3
F600LP
(0.74)
 0.055
WFC3
F606W
(0.59)
 0.077
WFC3
F625W
(0.62)
 0.070
WFC3
F775W
(0.76)
 0.051
WFC3
F814W
(0.80)
 0.047
WFC3
F850LP
(0.91)
 0.037
ACS
clear
(0.62)
 0.075
ACS
F435W
(0.43)
 0.111
ACS
F475W
(0.48)
 0.101
ACS
F550M
(0.56)
 0.081
ACS
F555W
(0.54)
 0.086
ACS
F606W
(0.59)
 0.076
ACS
F625W
(0.63)
 0.068
ACS
F775W
(0.77)
 0.050
ACS
F814W
(0.80)
 0.047
ACS
F850LP
(0.90)
 0.038
DES
g
(0.48)
 0.100
DES
r
(0.64)
 0.067
DES
i
(0.78)
 0.049
DES
z
(0.91)
 0.037
DES
Y
(0.99)
 0.033


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]
0.167
0.133
0.102
0.082
0.060
0.158
0.117
0.085
0.064
0.045
0.028
0.018
0.011
0.005


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.000 mag 

See Notes on Galactic Extinction for important caveats.

Helio. Radial Velocity     :     30549 +/-       89 km/s SUN  
Redshift                   :  0.101900 +/- 0.000298  SUN   1998A&A...337...17A
Major Diameter (arcmin)    :      
Minor Diameter (arcmin)    :      
Magnitude and Filter       : 18.8 
Classifications            :                     

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)      4 photometric data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :   30549 +/-     89 km/s SUN  1998A&A...337...17A
V (Kinematic LSR)          :   30529 +/-     89 km/s SUN  1986MNRAS.221.1023K
V (Galactocentric GSR)     :   30379 +/-     90 km/s SUN  1991RC3.9.C...0000d
V (Local Group)            :   30347 +/-     90 km/s SUN  1996AJ....111..794K
V (3K CMB)                 :   30624 +/-     89 km/s SUN  1996ApJ...473..576F
V (Virgo Infall only)      :   30305 +/-     90 km/s SUN  2000ApJ...529..786M
V (Virgo + GA only)        :   30377 +/-     90 km/s SUN  2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   30398 +/-     90 km/s SUN  2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   416.1 +/-   29.2 Mpc      (m-M) = 38.10 +/- 0.15 mag
D (Local Group)            :   415.7 +/-   29.1 Mpc      (m-M) = 38.09 +/- 0.15 mag
D (3K CMB)                 :   419.5 +/-   29.4 Mpc      (m-M) = 38.11 +/- 0.15 mag
D (Virgo Infall only)      :   415.1 +/-   29.1 Mpc      (m-M) = 38.09 +/- 0.15 mag
D (Virgo + GA only)        :   416.1 +/-   29.2 Mpc      (m-M) = 38.10 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   416.4 +/-   29.2 Mpc      (m-M) = 38.10 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    2018 pc/arcsec =  2.018 kpc/arcsec = 121.05 kpc/arcmin =   7.26 Mpc/degree
Scale (Local Group)        :    2015 pc/arcsec =  2.015 kpc/arcsec = 120.93 kpc/arcmin =   7.26 Mpc/degree
Scale (3K CMB)             :    2034 pc/arcsec =  2.034 kpc/arcsec = 122.03 kpc/arcmin =   7.32 Mpc/degree
Scale (Virgo Infall only)  :    2013 pc/arcsec =  2.013 kpc/arcsec = 120.76 kpc/arcmin =   7.25 Mpc/degree
Scale (Virgo + GA only)    :    2017 pc/arcsec =  2.017 kpc/arcsec = 121.05 kpc/arcmin =   7.26 Mpc/degree
Scale(Virgo + GA + Shapley):    2019 pc/arcsec =  2.019 kpc/arcsec = 121.13 kpc/arcmin =   7.27 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 =  0.826 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) =  30549 km/sec  






Cosmology-Corrected Quantities [Ho =  73.00 km/sec/Mpc, Ωmatter =   0.27, Ωvacuum =   0.73]
[Redshift 0.102152 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        : 453 Mpc      (m-M) = 38.28 mag
Angular-Size Distance      : 373 Mpc      (m-M) = 37.86 mag
Co-Moving Radial Distance  : 411 Mpc      (m-M) = 38.07 mag
Co-Moving Tangential Dist. : 411 Mpc      (m-M) = 38.07 mag
Co-Moving Volume           : 0.29 Gpc^3
Light Travel-Time          :    1.276 Gyr
Age at Redshift 0.102152   :   12.023 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):    1806 pc/arcsec =  1.806 kpc/arcsec = 108.37 kpc/arcmin =   6.50 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.67769; Magnitude per Unit Area = 0.4224 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