NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-18 T07:00:19 PST
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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.

INDEX for Maffei 2
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
   
57 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
216 Reference(s)   
11 Position data point(s)
4 Redshift data point(s)   
3 Diameter data point(s)   
3 Note(s)   
1 Association(s)   
RC3 data    

ESSENTIAL NOTE for Maffei 2 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for Maffei 2 (Back to INDEX)
Object Names Type Object Names Type
Maffei 2G HFLLZOA J023 G
UGCA 039 G PGC 010217 G
WEIN 021 G 11HUGS 052 G
2MASX J02415509+5936147 IrS 87GB 023808.8+592320 RadioS
2MASXi J0241549+593614 IrS 87GB[BWE91] 0238+5923 RadioS
2MASS J02415498+5936145 IrS [WB92] 0238+5923 RadioS
IRAS 02381+5923 IrS NVSS J024155+593613 RadioS
ZOAG G136.50-00.33 G 8C 0238+593 RadioS
ZOAG G136.51-00.33 G SHARPLESS 197 HII
LDCE 0264 NED002 G TXS 0238+593 RadioS
HDCE 0173 NED002 G VERA J0241+5936 RadioS
[RC2] A0238+59 G CXO J024155.0+593615 XrayS
DW G136.5-00.3 G [SPB93] 035 G
HFLLZOA C023 G    
HFLLZOA G136.50-00.33 G    
     

COORDINATES for Maffei 2 (Back to INDEX)

Position Reference:2010ApJS..189...37E

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  39.5348510  59.3911060 02h38m08.364s +59d23m27.98s  4.40E-01  4.40E-01    0
Equatorial (J2000.0)  40.4792392  59.6042819 02h41m55.017s +59d36m15.41s  4.40E-01  4.40E-01    0
Ecliptic   (B1950.0)  58.4591652  41.3490933                              4.40E-01  4.40E-01    0
Ecliptic   (J2000.0)  59.1550584  41.3548908                              4.40E-01  4.40E-01    0
Galactic             136.4983301  -0.3254610                              4.40E-01  4.40E-01    0
SuperGalactic        359.5805216   0.8305271                              4.40E-01  4.40E-01    0
Additional detailed measurements with references are also available by clicking below:
11 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for Maffei 2 (Back to INDEX)

9 Distances found in NED View 9 Individual Distance Measurement(s) for Maffei 2

Summary Statistics computed by NED from 9 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.


Maffei 2 Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 27.83 3.747
Std. Dev. 0.44 0.837
Min. 27.24 2.800
Max. 28.74 5.600
Median 27.71 3.490

CLASSIFICATIONS (TYPES, ATTRIBUTES) for Maffei 2 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyGMGroup member...1984TarOT..73....1V
KinematicsHI line widthHI line width...1998AJ....115..584H
Luminosity Class4.0LC II-III...1991RC3.9.C...0000d
Galaxy MorphologySAB(rs)bc:SAB(rs)bc?...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...2007ApJ...655..814F
16 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for Maffei 2 (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.
WARNING: This position with |Galactic latitude| < 5 deg has unreliable extinction estimates.
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]10.5098.7926.6495.2593.64910.2788.0095.5404.1173.0621.7191.0890.7320.371
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values: WARNING: This position with |Galactic latitude| < 5 deg has unreliable extinction estimates.
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]12.63110.0307.7066.2134.51011.9838.8176.3954.8493.4382.0971.3390.8530.356

See Notes on Galactic Extinction for important caveats.

BASIC DATA for Maffei 2 (Back to INDEX)
Helio. Radial Velocity     :       -17 +/-        5 km/s      
Redshift                   : -0.000057 +/- 0.000017        1995MNRAS.277..125H
Major Diameter (arcmin)    :  5.82
Minor Diameter (arcmin)    :  1.57
Magnitude and Filter       :  9.3I
Classifications            : SAB(rs)bc:          

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)      57 photometric data point(s)      3 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for Maffei 2 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :     -17 +/-      5 km/s      1995MNRAS.277..125H
V (Kinematic LSR)          :     -14 +/-      5 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     136 +/-      8 km/s      1991RC3.9.C...0000d
V (Local Group)            :     212 +/-     15 km/s      1996AJ....111..794K
V (3K CMB)                 :    -170 +/-     12 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     244 +/-     15 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     227 +/-     15 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     227 +/-     15 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    1.86 +/-   0.17 Mpc      (m-M) = 26.35 +/- 0.19 mag
D (Local Group)            :    2.90 +/-   0.29 Mpc      (m-M) = 27.31 +/- 0.20 mag
D (3K CMB)                 :     N/A   
D (Virgo Infall only)      :    3.34 +/-   0.25 Mpc      (m-M) = 27.62 +/- 0.15 mag
D (Virgo + GA only)        :    3.11 +/-   0.23 Mpc      (m-M) = 27.47 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    3.11 +/-   0.23 Mpc      (m-M) = 27.46 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :       9 pc/arcsec =  0.009 kpc/arcsec =   0.54 kpc/arcmin =   0.03 Mpc/degree
Scale (Local Group)        :      14 pc/arcsec =  0.014 kpc/arcsec =   0.84 kpc/arcmin =   0.05 Mpc/degree
Scale (3K CMB)             :     N/A 
Scale (Virgo Infall only)  :      16 pc/arcsec =  0.016 kpc/arcsec =   0.97 kpc/arcmin =   0.06 Mpc/degree
Scale (Virgo + GA only)    :      15 pc/arcsec =  0.015 kpc/arcsec =   0.91 kpc/arcmin =   0.05 Mpc/degree
Scale(Virgo + GA + Shapley):      15 pc/arcsec =  0.015 kpc/arcsec =   0.90 kpc/arcmin =   0.05 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 = 110.703 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = -17 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift -0.000565 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Cosmology Computations unstable or undefined

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for Maffei 2 (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)]
VisualI (Cousins) 9.29 +/- 0.06 mag 2007ApJ...655..814F-18.54 +/- 0.38 [mag] 8.11E+08 +/- 1.29E+08
Near-InfraredK_tot (2MASS LGA) 5.215 +/- 0.026 mag 2003AJ....125..525J-22.61 +/- 0.37 [mag] 3.30E+09 +/- 4.98E+08
Mid-Infrared25 microns (IRAS) 25.0 Jy 1986A&A...166L...8C 5.04E+35 [W] 1.31E+09
Far-Infrared100 microns (IRAS) 225 Jy 1986A&A...166L...8C 1.13E+36 [W] 2.95E+09
Sub-Millimeter350 microns 8.5 +/- 0.9 Jy 1986A&A...166L...8C 1.22E+34 +/- 2.24E+33 [W] 3.18E+07 +/- 5.82E+06
Millimeter1.3 mm 1.1 +/- 0.3 Jy 1986A&A...166L...8C 4.27E+32 +/- 1.33E+32 [W] 1.11E+06 +/- 3.45E+05
Radio38 MHz (8C) 8.4 +/- 3.6 Jy 1995MNRAS.274..447H 5.33E+29 +/- 2.40E+29 [W] 1.39E+03 +/- 6.23E+02
NOTE: The above quantities are derived using an estimated Distance Modulus of (27.83 +/- 0.44) mag corresponding to
a Metric Distance of (3.747 +/- 0.837) 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 57 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for Maffei 2 (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]
RC3 D_25; R_25 (blue) 60.00...... 25.0 B-mag arcsec^-2^ 1991RC3.9.C...0000d1.09...
K_s (LGA/2MASS "total") 912.40419.7035 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J16.577.62
NOTE: Physical diameters are derived using a scale of 0.0182 kpc/arcsec based on Average NED-D Metric Distance of (3.747 +/- 0.837) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 3 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for Maffei 2 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- Maffei 2SIMBAD (CDS, Strasbourg, France)
2MASS Extended Source Images (JHKs) -- 2MASX J02415509+5936147 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J0241549+593614 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 02381+5923 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 010217 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 010217 The Lyon/Meudon Extragalactic Database (LEDA)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 0238+593 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- Maffei 2GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- Maffei 2NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 02h41m55.0s, +59d36m15s (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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