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Position Reference:20032MASX.C.......:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)   44.161423   13.558404  02h56m38.74s  +13d33m30.3s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)   44.849458   13.756944  02h59m23.87s  +13d45m25.0s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)   45.699512   -3.117917                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)   46.398226   -3.112855                              1.25E+00  1.25E+00    0
Galactic              164.156419  -38.663564                              1.25E+00  1.25E+00    0
SuperGalactic         320.129170  -24.741612                              1.25E+00  1.25E+00    0

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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]
0.676
0.566
0.428
0.339
0.235
0.662
0.516
0.357
0.265
0.197
0.111
0.070
0.047
0.024

  

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


Bandpass [µm]
Aλ [mag]
Landolt
U
(0.35)
 0.676
Landolt
B
(0.43)
 0.566
Landolt
V
(0.54)
 0.428
Landolt
R
(0.64)
 0.339
Landolt
I
(0.80)
 0.235
CTIO
U
(0.37)
 0.641
CTIO
B
(0.43)
 0.568
CTIO
V
(0.55)
 0.419
CTIO
R
(0.65)
 0.331
CTIO
I
(0.80)
 0.237
UKIRT
J
(1.25)
 0.111
UKIRT
H
(1.66)
 0.070
UKIRT
K
(2.19)
 0.047
UKIRT
L'
(3.78)
 0.024
Gunn
g
(0.52)
 0.455
Gunn
r
(0.66)
 0.321
Gunn
i
(0.79)
 0.243
Gunn
z
(0.91)
 0.193
Spinrad
R_S
(0.69)
 0.300
Stromgren
u
(0.35)
 0.672
Stromgren
b
(0.47)
 0.523
Stromgren
v
(0.41)
 0.592
Stromgren
beta
(0.49)
 0.497
Stromgren
y
(0.55)
 0.419
SDSS
u
(0.36)
 0.662
SDSS
g
(0.47)
 0.516
SDSS
r
(0.62)
 0.357
SDSS
i
(0.75)
 0.265
SDSS
z
(0.89)
 0.197
DSS-II
g
(0.46)
 0.528
DSS-II
r
(0.65)
 0.326
DSS-II
i
(0.81)
 0.232
PS1
g
(0.49)
 0.495
PS1
r
(0.62)
 0.354
PS1
i
(0.75)
 0.263
PS1
z
(0.87)
 0.206
PS1
y
(0.97)
 0.170
PS1
w
(0.62)
 0.365
LSST
u
(0.37)
 0.647
LSST
g
(0.48)
 0.505
LSST
r
(0.62)
 0.355
LSST
i
(0.75)
 0.263
LSST
z
(0.87)
 0.206
LSST
y
(0.97)
 0.170
WFPC2
F300W
(0.31)
 0.765
WFPC2
F450W
(0.46)
 0.532
WFPC2
F555W
(0.54)
 0.430
WFPC2
F606W
(0.60)
 0.377
WFPC2
F702W
(0.69)
 0.304
WFPC2
F814W
(0.79)
 0.242
WFC3
F105W
(1.04)
 0.151
WFC3
F110W
(1.12)
 0.138
WFC3
F125W
(1.23)
 0.113
WFC3
F140W
(1.37)
 0.096
WFC3
F160W
(1.53)
 0.080
WFC3
F200LP
(0.55)
 0.462
WFC3
F218W
(0.22)
 1.211
WFC3
F225W
(0.24)
 1.091
WFC3
F275W
(0.27)
 0.856
WFC3
F300X
(0.29)
 0.816
WFC3
F336W
(0.34)
 0.695
WFC3
F350LP
(0.59)
 0.410
WFC3
F390W
(0.40)
 0.608
WFC3
F438W
(0.43)
 0.565
WFC3
F475W
(0.48)
 0.507
WFC3
F475X
(0.50)
 0.486
WFC3
F555W
(0.53)
 0.446
WFC3
F600LP
(0.74)
 0.278
WFC3
F606W
(0.59)
 0.388
WFC3
F625W
(0.62)
 0.353
WFC3
F775W
(0.76)
 0.256
WFC3
F814W
(0.80)
 0.240
WFC3
F850LP
(0.91)
 0.189
ACS
clear
(0.62)
 0.380
ACS
F435W
(0.43)
 0.563
ACS
F475W
(0.48)
 0.510
ACS
F550M
(0.56)
 0.409
ACS
F555W
(0.54)
 0.436
ACS
F606W
(0.59)
 0.386
ACS
F625W
(0.63)
 0.346
ACS
F775W
(0.77)
 0.254
ACS
F814W
(0.80)
 0.238
ACS
F850LP
(0.90)
 0.194
DES
g
(0.48)
 0.505
DES
r
(0.64)
 0.340
DES
i
(0.78)
 0.249
DES
z
(0.91)
 0.190
DES
Y
(0.99)
 0.165


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]
0.820
0.651
0.500
0.404
0.293
0.778
0.573
0.415
0.315
0.223
0.136
0.087
0.055
0.023


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.380 mag 

See Notes on Galactic Extinction for important caveats.

Helio. Radial Velocity     :     23290 +/-       25 km/s SUN  
Redshift                   :  0.077687 +/- 0.000083  SUN   1993AJ....106..831H
Major Diameter (arcmin)    :      
Minor Diameter (arcmin)    :      
Magnitude and Filter       : 18.02
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)      27 photometric data point(s)      2 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :   23290 +/-     25 km/s SUN  1993AJ....106..831H
V (Kinematic LSR)          :   23281 +/-     25 km/s SUN  1986MNRAS.221.1023K
V (Galactocentric GSR)     :   23328 +/-     25 km/s SUN  1991RC3.9.C...0000d
V (Local Group)            :   23383 +/-     26 km/s SUN  1996AJ....111..794K
V (3K CMB)                 :   23084 +/-     29 km/s SUN  1996ApJ...473..576F
V (Virgo Infall only)      :   23250 +/-     27 km/s SUN  2000ApJ...529..786M
V (Virgo + GA only)        :   22995 +/-     33 km/s SUN  2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   22950 +/-     33 km/s SUN  2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   319.6 +/-   22.4 Mpc      (m-M) = 37.52 +/- 0.15 mag
D (Local Group)            :   320.3 +/-   22.4 Mpc      (m-M) = 37.53 +/- 0.15 mag
D (3K CMB)                 :   316.2 +/-   22.1 Mpc      (m-M) = 37.50 +/- 0.15 mag
D (Virgo Infall only)      :   318.5 +/-   22.3 Mpc      (m-M) = 37.52 +/- 0.15 mag
D (Virgo + GA only)        :   315.0 +/-   22.1 Mpc      (m-M) = 37.49 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   314.4 +/-   22.0 Mpc      (m-M) = 37.49 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    1549 pc/arcsec =  1.549 kpc/arcsec =  92.96 kpc/arcmin =   5.58 Mpc/degree
Scale (Local Group)        :    1553 pc/arcsec =  1.553 kpc/arcsec =  93.18 kpc/arcmin =   5.59 Mpc/degree
Scale (3K CMB)             :    1533 pc/arcsec =  1.533 kpc/arcsec =  91.98 kpc/arcmin =   5.52 Mpc/degree
Scale (Virgo Infall only)  :    1544 pc/arcsec =  1.544 kpc/arcsec =  92.65 kpc/arcmin =   5.56 Mpc/degree
Scale (Virgo + GA only)    :    1527 pc/arcsec =  1.527 kpc/arcsec =  91.63 kpc/arcmin =   5.50 Mpc/degree
Scale(Virgo + GA + Shapley):    1524 pc/arcsec =  1.524 kpc/arcsec =  91.45 kpc/arcmin =   5.49 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 =  1.093 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) =  23290 km/sec  






Cosmology-Corrected Quantities [Ho =  73.00 km/sec/Mpc, Ωmatter =   0.27, Ωvacuum =   0.73]
[Redshift 0.076999 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        : 335 Mpc      (m-M) = 37.63 mag
Angular-Size Distance      : 289 Mpc      (m-M) = 37.30 mag
Co-Moving Radial Distance  : 311 Mpc      (m-M) = 37.47 mag
Co-Moving Tangential Dist. : 311 Mpc      (m-M) = 37.47 mag
Co-Moving Volume           : 0.126 Gpc^3
Light Travel-Time          :    0.978 Gyr
Age at Redshift 0.076999   :   12.321 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):    1401 pc/arcsec =  1.401 kpc/arcsec =  84.05 kpc/arcmin =   5.04 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.74326; Magnitude per Unit Area = 0.3222 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 

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