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Date and Time of the Query: 2018-11-16 T06:14:14 PST
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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 Holmberg II


1 objects found in NED.    

SOURCE LIST

 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   *Holmberg II                    08h19m05.0s +70d43m12s G         142  0.000474      11.10    ...   507    24  109   36    12    7     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - Holmberg II

INDEX for Holmberg II
Essential Data (jump to sub-section of this query report):

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

Images
   
109 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
507 Reference(s)   
36 Position data point(s)
12 Redshift data point(s)   
7 Diameter data point(s)   
24 Note(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for Holmberg II (Back to INDEX)
Position in 1999ApJS..125..409C refers to a knot east of the center.            

CROSS-IDENTIFICATIONS for Holmberg II (Back to INDEX)
Object Names Type Object Names Type
Holmberg IIG LDCE 0842 NED002 G
UGC 04305 G [RC2] A0813+70 G
ARP 268 G [RC1] A0814 G
DDO 050 G PGC 023324 G
KUG 0814+708 G SSTSL2 J081904.81+704311.7 IrS
VII Zw 223 G UZC J081912.7+704306 G
CGCG 331-034 G 11HUGS 131 G
CGCG 0814.1+7052 G HIJASS J0818+70 RadioS
CGPG 0814.1+7052 G [SPB93] 091 G
MCG +12-08-033 G LGG 176:[G93] 007 G
2MASX J08190497+7043121 IrS [MHH96] J081929+704222 XrayS
IRAS 08140+7052 IrS    
IRAS F08140+7052 IrS    
KIG 0239 G    

COORDINATES for Holmberg II (Back to INDEX)

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

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  123.468530   70.876165  08h13m52.45s  +70d52m34.2s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)  124.770750   70.720028  08h19m04.98s  +70d43m12.1s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)  106.082914   49.294292                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)  106.784081   49.300369                              1.25E+00  1.25E+00    0
Galactic              144.276768   32.688521                              1.25E+00  1.25E+00    0
SuperGalactic          33.256966   -2.357887                              1.25E+00  1.25E+00    0
Additional detailed measurements with references are also available by clicking below:
36 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for Holmberg II (Back to INDEX)

21 Distances found in NED View 21 Individual Distance Measurement(s) for Holmberg II

Summary Statistics computed by NED from 21 Distance(s) in the literature:
NOTE: These summary statistics are provided for "quick-look" reference only;
they are based exclusively on original values, as published.
No homogenization or corrections have been applied.


Holmberg II Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 27.30 3.040
Std. Dev. 0.77 0.939
Min. 25.53 1.280
Max. 28.29 4.550
Median 27.57 3.270

CLASSIFICATIONS (TYPES, ATTRIBUTES) for Holmberg II (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyG+Probable group member...1975SSS.....9..557d
KinematicsHI line widthHI line width...1998A&AS..127..269H
Luminosity Class10.0LC V-VI...1991RC3.9.C...0000d
Galaxy MorphologyImIm...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
60 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for Holmberg II (Back to INDEX)
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]0.1380.1150.0870.0690.0480.1350.1050.0730.0540.0400.0230.0140.0100.005
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]0.1760.1390.1070.0860.0630.1670.1230.0890.0670.0480.0290.0190.0120.005


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.090 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for Holmberg II (Back to INDEX)
Helio. Radial Velocity     :       142 +/-        1 km/s      
Redshift                   :  0.000474 +/- 0.000003        2004MNRAS.349..225G
Major Diameter (arcmin)    :   7.9
Minor Diameter (arcmin)    :   6.3
Magnitude and Filter       : 11.10
Classifications            : Im                  

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:
12 Redshift data point(s)      109 photometric data point(s)      7 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for Holmberg II (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :     142 +/-      1 km/s      2004MNRAS.349..225G
V (Kinematic LSR)          :     147 +/-      1 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     254 +/-      5 km/s      1991RC3.9.C...0000d
V (Local Group)            :     296 +/-      9 km/s      1996AJ....111..794K
V (3K CMB)                 :     188 +/-      3 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     357 +/-     10 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     364 +/-     10 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     365 +/-     10 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    3.48 +/-   0.25 Mpc      (m-M) = 27.71 +/- 0.15 mag
D (Local Group)            :    4.06 +/-   0.31 Mpc      (m-M) = 28.04 +/- 0.16 mag
D (3K CMB)                 :    2.58 +/-   0.19 Mpc      (m-M) = 27.06 +/- 0.15 mag
D (Virgo Infall only)      :    4.89 +/-   0.35 Mpc      (m-M) = 28.45 +/- 0.15 mag
D (Virgo + GA only)        :    4.98 +/-   0.35 Mpc      (m-M) = 28.49 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    5.00 +/-   0.35 Mpc      (m-M) = 28.50 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      17 pc/arcsec =  0.017 kpc/arcsec =   1.01 kpc/arcmin =   0.06 Mpc/degree
Scale (Local Group)        :      20 pc/arcsec =  0.020 kpc/arcsec =   1.18 kpc/arcmin =   0.07 Mpc/degree
Scale (3K CMB)             :      12 pc/arcsec =  0.012 kpc/arcsec =   0.75 kpc/arcmin =   0.04 Mpc/degree
Scale (Virgo Infall only)  :      24 pc/arcsec =  0.024 kpc/arcsec =   1.42 kpc/arcmin =   0.09 Mpc/degree
Scale (Virgo + GA only)    :      24 pc/arcsec =  0.024 kpc/arcsec =   1.45 kpc/arcmin =   0.09 Mpc/degree
Scale(Virgo + GA + Shapley):      24 pc/arcsec =  0.024 kpc/arcsec =   1.45 kpc/arcmin =   0.09 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 = 68.747 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 142 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.000627 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 2.58 Mpc (m-M) = 27.06 mag Angular-Size Distance : 2.57 Mpc (m-M) = 27.05 mag Co-Moving Radial Distance : 2.58 Mpc (m-M) = 27.06 mag Co-Moving Tangential Dist. : 2.58 Mpc (m-M) = 27.06 mag Co-Moving Volume : 7.16e-08 Gpc^3 Light Travel-Time : 0.008 Gyr Age at Redshift 0.000627 : 13.290 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 12 pc/arcsec = 0.012 kpc/arcsec = 0.75 kpc/arcmin = 0.04 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.99749; Magnitude per Unit Area = 0.002724 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: as Input for Calculation of the Distances and Cosmology-Corrected Quantities

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for Holmberg II (Back to INDEX)

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).

Spectral
Region
Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
UltravioletNUV (GALEX) AB 12.176 +/- 0.001 mag 2009ApJ...703.1569M-15.12 +/- 0.34 [mag] 1.86E+08 +/- 2.50E+07
VisualI 0.38 Jy 2007ApJ...655..863D 1.55E+35 [W] 4.04E+08
Near-InfraredH_tot (2MASS LGA) 8.916 +/- 0.031 mag 2003AJ....125..525J-18.38 +/- 0.34 [mag] 1.46E+08 +/- 2.01E+07
Mid-Infrared25 microns (IRAS) 0.27 +/- 0.03 Jy 2007A&A...462..507L 3.58E+33 +/- 6.26E+32 [W] 9.32E+06 +/- 1.63E+06
Far-Infrared160 microns (MIPS) 0.711 +/- 0.020 log(Jy) 2009ApJ...703.1569M 1.09E+34 +/- 1.55E+33 [W] 2.84E+07 +/- 4.04E+06
Sub-Millimeter350 microns (SPIRE) 8.04E-1 +/- 1.08E-1 Jy 2012ApJ...745...95D 7.62E+32 +/- 1.45E+32 [W] 1.98E+06 +/- 3.77E+05
Radio22 cm (WSRT) 0.027 +/- 0.001 Jy 2014AJ....147..103H 4.06E+28 +/- 5.68E+27 [W] 1.06E+02 +/- 1.48E+01
NOTE: The above quantities are derived using an estimated Distance Modulus of (27.30 +/- 0.77) mag corresponding to
a Metric Distance of (3.040 +/- 0.939) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 109 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for Holmberg II (Back to INDEX)

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

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
PA
[degrees]
(J2000.0)
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
POSS1 103a-O 558.00396.1815 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N8.225.84
K_s (LGA/2MASS "total") 208.20208.20165 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J3.073.07
NOTE: Physical diameters are derived using a scale of 0.0147 kpc/arcsec based on Average NED-D Metric Distance of (3.040 +/- 0.939) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 7 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for Holmberg II Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- Holmberg IISIMBAD (CDS, Strasbourg, France)
Uppsala General Catalog -- UGC 04305 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 331-034 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
Morphological Catalog of Galaxies -- MCG +12-08-033 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J08190497+7043121 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 08140+7052 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F08140+7052 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 023324 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 023324 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- Holmberg IIGALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- Holmberg IINASA/IPAC Infrared Science Archive (IRSA)
Resources for position 08h19m05.0s, +70d43m12s (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)
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)
The NRAO Data Archive System

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