Date and Time of the Query: 2019-02-20 T14:16:47 PST
Help | Comment | NED Home

You have selected the following parameters to search on:

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

NED results for object SDSS J020840.40-001642.9

1 objects found in NED.    


 Row          Object Name                 EquJ2000.0       Object  Velocity/Redshift    Mag./  Separ.               Number of                                 Row 
 No.     (* => Essential Note)       RA               DEC  Type     km/s       z   Qual Filter arcmin Refs Notes Phot Posn Vel/z Diam Assoc Images   Spectra  No. 
1    SDSS J020840.40-001642.9       02h08m40.4s -00d16m43s G       20001  0.066715      17.8g    ...    10     0   44    7     4    8     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - SDSS J020840.40-001642.9

INDEX for SDSS J020840.40-001642.9
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):

44 Photometric data point(s) and SED   
Redshift-Independent Distances
10 Reference(s)   
7 Position data point(s)
4 Redshift data point(s)   
8 Diameter data point(s)   

ESSENTIAL NOTE for SDSS J020840.40-001642.9 (Back to INDEX)

CROSS-IDENTIFICATIONS for SDSS J020840.40-001642.9 (Back to INDEX)
Object Names Type Object Names Type
SDSS J020840.40-001642.9G GALEXMSC J020840.39-001642.6 UvS
SDSS J020840.40-001643.0 G ASK 034885.0 G
SDSS J020840.40-001643.1 G APMUKS(BJ) B020606.86-003053.9G
GALEXASC J020840.35-001641.7 UvS LEDA 1147362 G

COORDINATES for SDSS J020840.40-001642.9 (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)   31.528717   -0.515125 02h06m06.892s -00d30m54.45s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)   32.168340   -0.278637 02h08m40.401s -00d16m43.09s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)   29.189557  -12.491935                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)   29.889266  -12.488244                              5.00E-01  5.00E-01    0
Galactic              160.750079  -57.366103                              5.00E-01  5.00E-01    0
SuperGalactic         301.320600  -17.782234                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
7 Position data point(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]0.1220.1020.0770.0610.0420.1200.0930.0640.0480.0360.0200.0130.0090.004
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]0.1530.1210.0930.0750.0540.1450.1060.0770.0590.0420.0250.0160.0100.004

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.030 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for SDSS J020840.40-001642.9 (Back to INDEX)
Helio. Radial Velocity     :     20001 +/-       15 km/s      
Redshift                   :  0.066715 +/- 0.000050        2003SDSS1.C...0000:
Major Diameter (arcmin)    :  0.34
Minor Diameter (arcmin)    :  0.11
Magnitude and Filter       : 17.8g
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:
4 Redshift data point(s)      44 photometric data point(s)      8 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for SDSS J020840.40-001642.9 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :   20001 +/-     15 km/s      2003SDSS1.C...0000:
V (Kinematic LSR)          :   19992 +/-     15 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :   20032 +/-     15 km/s      1991RC3.9.C...0000d
V (Local Group)            :   20084 +/-     16 km/s      1996AJ....111..794K
V (3K CMB)                 :   19737 +/-     24 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :   19915 +/-     20 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :   19710 +/-     24 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   19674 +/-     25 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   274.4 +/-   19.2 Mpc      (m-M) = 37.19 +/- 0.15 mag
D (Local Group)            :   275.1 +/-   19.3 Mpc      (m-M) = 37.20 +/- 0.15 mag
D (3K CMB)                 :   270.4 +/-   18.9 Mpc      (m-M) = 37.16 +/- 0.15 mag
D (Virgo Infall only)      :   272.8 +/-   19.1 Mpc      (m-M) = 37.18 +/- 0.15 mag
D (Virgo + GA only)        :   270.0 +/-   18.9 Mpc      (m-M) = 37.16 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   269.5 +/-   18.9 Mpc      (m-M) = 37.15 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    1330 pc/arcsec =  1.330 kpc/arcsec =  79.82 kpc/arcmin =   4.79 Mpc/degree
Scale (Local Group)        :    1334 pc/arcsec =  1.334 kpc/arcsec =  80.03 kpc/arcmin =   4.80 Mpc/degree
Scale (3K CMB)             :    1311 pc/arcsec =  1.311 kpc/arcsec =  78.65 kpc/arcmin =   4.72 Mpc/degree
Scale (Virgo Infall only)  :    1323 pc/arcsec =  1.323 kpc/arcsec =  79.36 kpc/arcmin =   4.76 Mpc/degree
Scale (Virgo + GA only)    :    1309 pc/arcsec =  1.309 kpc/arcsec =  78.54 kpc/arcmin =   4.71 Mpc/degree
Scale(Virgo + GA + Shapley):    1307 pc/arcsec =  1.307 kpc/arcsec =  78.40 kpc/arcmin =   4.70 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 = 1.276 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 20001 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.065834 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 284 Mpc (m-M) = 37.27 mag Angular-Size Distance : 250 Mpc (m-M) = 36.99 mag Co-Moving Radial Distance : 267 Mpc (m-M) = 37.13 mag Co-Moving Tangential Dist. : 267 Mpc (m-M) = 37.13 mag Co-Moving Volume : 0.0795 Gpc^3 Light Travel-Time : 0.843 Gyr Age at Redshift 0.065834 : 12.456 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 1213 pc/arcsec = 1.213 kpc/arcsec = 72.79 kpc/arcmin = 4.37 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.77489; Magnitude per Unit Area = 0.2769 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 20.2770 +/- 0.0459388 mag 2012GMSC..C...0000S-16.99 +/- 0.50 [mag] 9.11E+08 +/- 1.86E+08
Visuali (SDSS Petrosian)AB 16.926 +/- 0.018 asinh mag 2004SDSS2.C...0000:-20.34 +/- 0.50 [mag] 1.42E+10 +/- 2.85E+09
NOTE: The above quantities are derived using a Distance Modulus of 37.27 mag corresponding to
a Luminosity Distance of 284.3 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 44 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) 22.277.13176 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:29.109.31
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 1.307 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 8 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for SDSS J020840.40-001642.9 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- SDSS J020840.40-001642.9SIMBAD (CDS, Strasbourg, France)
SDSS Sky Server
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- SDSS J020840.40-001642.9GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- SDSS J020840.40-001642.9NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 02h08m40.4s, -00d16m43s (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)
Explore resources with DataScope (15 arcmin 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

Back to the list

Back to NED Home