Date and Time of the Query: 2019-05-20 T19:40:23 PDT
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Velocity(km/s): Unconstrained
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Parameters for Distances and Cosmology: Ho= 73.0; Ωmatter = 0.27; Ωvacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

Detailed Information for Object No. 1

INDEX for 2MASS J12565591+2727447
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

39 Photometric data point(s) and SED   
Redshift-Independent Distances
27 Reference(s)   
12 Position data point(s)
7 Redshift data point(s)   
4 Diameter data point(s)   
1 Association(s)   

ESSENTIAL NOTE for 2MASS J12565591+2727447 (Back to INDEX)

CROSS-IDENTIFICATIONS for 2MASS J12565591+2727447 (Back to INDEX)
Object Names Type Object Names Type
2MASS J12565591+2727447IrS NSA 162638 G
SDSS J125655.93+272744.6 G LEDA 126886 G
SDSS J125655.94+272744.6 G ABELL 1656:[GMP83] 5178 G
GALEXASC J125656.00+272745.6 UvS [MBC2001] 162801 G
GALEXMSC J125655.89+272742.1 UvS ABELL 1656:[TCB2001] sw03-079 G
AGC 222623 RadioSNGC 4839 GROUP:[OSR2002] c111 G
ASK 579579.0 G [HHM2010] J194.23307+27.46239 UvES
MAPS-NGP O_323_1088638 G [TTL2012] 352310 G
NGP9 F323-1097426 G [HLH2015] 1237667443511525535 G

COORDINATES for 2MASS J12565591+2727447 (Back to INDEX)

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

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  193.627432   27.732563 12h54m30.584s +27d43m57.23s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  194.233073   27.462391 12h56m55.937s +27d27m44.61s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  180.411156   30.657183                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  181.113531   30.656589                              5.00E-01  5.00E-01    0
Galactic               48.553320   88.734471                              5.00E-01  5.00E-01    0
SuperGalactic          89.973637    7.585259                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
12 Position data point(s)


TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyGMGroup member...1983MNRAS.202..113G
1 Detailed Classification(s)

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 tS D S SU 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]0.0450.0380.0290.0230.0160.0440.0340.0240.0180.0130.0070.0050.0030.002
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values:
L a n d o l tS D S SU 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]0.0560.0450.0340.0280.0200.0530.0390.0280.0220.0150.0090.0060.0040.002

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.020 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for 2MASS J12565591+2727447 (Back to INDEX)
Helio. Radial Velocity     :      7627 +/-       32 km/s      
Redshift                   :  0.025441 +/- 0.000107        1996ApJ...458..435C
Major Diameter (arcmin)    :  0.28
Minor Diameter (arcmin)    :  0.16
Magnitude and Filter       : 17.9g
Classifications            : E                   

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:
7 Redshift data point(s)      39 photometric data point(s)      4 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for 2MASS J12565591+2727447 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    7627 +/-     32 km/s      1996ApJ...458..435C
V (Kinematic LSR)          :    7635 +/-     32 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    7638 +/-     32 km/s      1991RC3.9.C...0000d
V (Local Group)            :    7610 +/-     32 km/s      1996AJ....111..794K
V (3K CMB)                 :    7899 +/-     37 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    7831 +/-     36 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    8146 +/-     42 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    8199 +/-     42 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   104.6 +/-    7.3 Mpc      (m-M) = 35.10 +/- 0.15 mag
D (Local Group)            :   104.2 +/-    7.3 Mpc      (m-M) = 35.09 +/- 0.15 mag
D (3K CMB)                 :   108.2 +/-    7.6 Mpc      (m-M) = 35.17 +/- 0.15 mag
D (Virgo Infall only)      :   107.3 +/-    7.5 Mpc      (m-M) = 35.15 +/- 0.15 mag
D (Virgo + GA only)        :   111.6 +/-    7.8 Mpc      (m-M) = 35.24 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   112.3 +/-    7.9 Mpc      (m-M) = 35.25 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     507 pc/arcsec =  0.507 kpc/arcsec =  30.44 kpc/arcmin =   1.83 Mpc/degree
Scale (Local Group)        :     505 pc/arcsec =  0.505 kpc/arcsec =  30.32 kpc/arcmin =   1.82 Mpc/degree
Scale (3K CMB)             :     525 pc/arcsec =  0.525 kpc/arcsec =  31.48 kpc/arcmin =   1.89 Mpc/degree
Scale (Virgo Infall only)  :     520 pc/arcsec =  0.520 kpc/arcsec =  31.20 kpc/arcmin =   1.87 Mpc/degree
Scale (Virgo + GA only)    :     541 pc/arcsec =  0.541 kpc/arcsec =  32.46 kpc/arcmin =   1.95 Mpc/degree
Scale(Virgo + GA + Shapley):     545 pc/arcsec =  0.545 kpc/arcsec =  32.67 kpc/arcmin =   1.96 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 = 3.061 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 7627 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.026349 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 110 Mpc (m-M) = 35.22 mag Angular-Size Distance : 105 Mpc (m-M) = 35.10 mag Co-Moving Radial Distance : 108 Mpc (m-M) = 35.16 mag Co-Moving Tangential Dist. : 108 Mpc (m-M) = 35.16 mag Co-Moving Volume : 0.00522 Gpc^3 Light Travel-Time : 0.347 Gyr Age at Redshift 0.026349 : 12.952 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 508 pc/arcsec = 0.508 kpc/arcsec = 30.50 kpc/arcmin = 1.83 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.90120; Magnitude per Unit Area = 0.113 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
UltravioletNUV (GALEX) AB 21.4993 +/- 0.138676 mag 2012GMSC..C...0000S-13.72 +/- 0.52 [mag] 4.47E+07 +/- 1.06E+07
Visualz (SDSS Model) AB 16.400 +/- 0.026 asinh mag 2007SDSS6.C...0000:-18.82 +/- 0.50 [mag] 1.21E+09 +/- 2.44E+08
Near-InfraredH (2MASS/FLWO) 15.35 +/- 0.152 mag 2006AJ....131.1163S-19.87 +/- 0.52 [mag] 5.07E+08 +/- 1.24E+08
NOTE: The above quantities are derived using a Distance Modulus of 35.22 mag corresponding to
a Luminosity Distance of 110.5 Mpc [assuming 10%uncertainty] using the Cosmology-Corrected Quantities.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 39 Photometric data point(s) available in NED.


The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
r (SDSS Isophotal) 21.2712.34166 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:11.586.72
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.545 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 4 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for 2MASS J12565591+2727447 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- 2MASS J12565591+2727447SIMBAD (CDS, Strasbourg, France)
SDSS Sky Server
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- 2MASS J12565591+2727447GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- 2MASS J12565591+2727447NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h56m55.9s, +27d27m45s (J2000)Site/Service
Query Optical and UV Mission Archives (Default search radius)Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)HEASARC (NASA/GSFC)
SDSS Sky Server
Query IRSA for WISE images (10 arcmin search radius)NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
NASA/IPAC Infrared Science Archive (IRSA)
 Size:    Contours (PS)  JPEG  FITS File 
NRAO/VLA Sky Survey (NVSS)
    Size:     GIF     FITS File  
Faint Images of the Radio Sky at Twenty-Centimeters
The NRAO Data Archive System

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