NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-10 T02:35:53 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 CGCG 254-021


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   *CGCG 254-021                   18h10m29.2s +49d55m17s G       15354  0.051215      14.2V    ...    22     0   21   10     3    4     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - CGCG 254-021

INDEX for CGCG 254-021
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
   
21 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
22 Reference(s)   
10 Position data point(s)
3 Redshift data point(s)   
4 Diameter data point(s)   

ESSENTIAL NOTE for CGCG 254-021 (Back to INDEX)
87GB source with large sky, narrow minor axis, or very bad confusion.           

CROSS-IDENTIFICATIONS for CGCG 254-021 (Back to INDEX)
Object Names Type Object Names Type
CGCG 254-021G NPM1G +49.0374 G
CGCG 1809.2+4954 G PGC 061490 G
MCG +08-33-026 G UZC J181029.2+495518 G
2MASX J18102922+4955167 IrS 87GB 180913.6+495458 RadioS
2MASXi J1810292+495516 IrS 87GB[BWE91] 1809+4954 RadioS
2MASS J18102920+4955166 IrS NVSS J181029+495517 RadioS
WINGS J181029.20+495517.0 G 10W 215 RadioS
WINGS J181029.21+495517.0 G    
NFP J181029.2+495517 G    

COORDINATES for CGCG 254-021 (Back to INDEX)

Position Reference:1987AJ.....94..501K

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  272.311350   49.909303 18h09m14.724s +49d54m33.49s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  272.621678   49.921298 18h10m29.203s +49d55m16.67s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  275.189674   73.313443                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  275.884639   73.307037                              5.00E-01  5.00E-01    0
Galactic               77.714770   26.791532                              5.00E-01  5.00E-01    0
SuperGalactic          38.847421   54.616725                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
10 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for CGCG 254-021 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for CGCG 254-021 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Galaxy Morphologycompactcompact...1966CGCG3.C...0000Z
1 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for CGCG 254-021 (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]0.1850.1540.1170.0920.0640.1800.1410.0970.0720.0540.0300.0190.0130.007
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]0.2230.1770.1360.1100.0800.2110.1560.1130.0860.0610.0370.0240.0150.006


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.190 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for CGCG 254-021 (Back to INDEX)
Helio. Radial Velocity     :     15354 +/-       19 km/s      
Redshift                   :  0.051215 +/- 0.000063        2004AJ....128.1558S
Major Diameter (arcmin)    :  0.5 
Minor Diameter (arcmin)    :  1.84
Magnitude and Filter       : 14.2V
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:
3 Redshift data point(s)      21 photometric data point(s)      4 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for CGCG 254-021 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :   15354 +/-     19 km/s      2004AJ....128.1558S
V (Kinematic LSR)          :   15373 +/-     19 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :   15561 +/-     21 km/s      1991RC3.9.C...0000d
V (Local Group)            :   15615 +/-     25 km/s      1996AJ....111..794K
V (3K CMB)                 :   15260 +/-     20 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :   15672 +/-     25 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :   15611 +/-     25 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   15635 +/-     25 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   213.2 +/-   14.9 Mpc      (m-M) = 36.64 +/- 0.15 mag
D (Local Group)            :   213.9 +/-   15.0 Mpc      (m-M) = 36.65 +/- 0.15 mag
D (3K CMB)                 :   209.0 +/-   14.6 Mpc      (m-M) = 36.60 +/- 0.15 mag
D (Virgo Infall only)      :   214.7 +/-   15.0 Mpc      (m-M) = 36.66 +/- 0.15 mag
D (Virgo + GA only)        :   213.9 +/-   15.0 Mpc      (m-M) = 36.65 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   214.2 +/-   15.0 Mpc      (m-M) = 36.65 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    1033 pc/arcsec =  1.033 kpc/arcsec =  62.01 kpc/arcmin =   3.72 Mpc/degree
Scale (Local Group)        :    1037 pc/arcsec =  1.037 kpc/arcsec =  62.22 kpc/arcmin =   3.73 Mpc/degree
Scale (3K CMB)             :    1013 pc/arcsec =  1.013 kpc/arcsec =  60.81 kpc/arcmin =   3.65 Mpc/degree
Scale (Virgo Infall only)  :    1041 pc/arcsec =  1.041 kpc/arcsec =  62.45 kpc/arcmin =   3.75 Mpc/degree
Scale (Virgo + GA only)    :    1037 pc/arcsec =  1.037 kpc/arcsec =  62.21 kpc/arcmin =   3.73 Mpc/degree
Scale(Virgo + GA + Shapley):    1038 pc/arcsec =  1.038 kpc/arcsec =  62.30 kpc/arcmin =   3.74 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 = 1.605 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 15354 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.050900 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 217 Mpc (m-M) = 36.69 mag Angular-Size Distance : 197 Mpc (m-M) = 36.47 mag Co-Moving Radial Distance : 207 Mpc (m-M) = 36.58 mag Co-Moving Tangential Dist. : 207 Mpc (m-M) = 36.58 mag Co-Moving Volume : 0.0371 Gpc^3 Light Travel-Time : 0.658 Gyr Age at Redshift 0.050900 : 12.641 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 954 pc/arcsec = 0.954 kpc/arcsec = 57.26 kpc/arcmin = 3.44 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.81989; Magnitude per Unit Area = 0.2156 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 CGCG 254-021 (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)]
VisualV 14.126 mag 2011A&A...526A..45F-22.56 [mag] 6.25E+10
Near-InfraredH 11.213 +/- 0.046 mag 20032MASX.C.......:-25.47 +/- 0.50 [mag] 8.97E+10 +/- 1.83E+10
Radio4.85 GHz 28 +/- 15 % milliJy 1991ApJS...75....1B 7.68E+32 +/- 1.92E+32 [W] 2.00E+06 +/- 4.99E+05
NOTE: The above quantities are derived using a Distance Modulus of 36.69 mag corresponding to
a Luminosity Distance of 217.4 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 21 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for CGCG 254-021 (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 30.0030.00... Very low surface brightness 1962MCG1..C...0000V31.1531.15
K_s (2MASS "total") 74.3065.3835 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:77.1567.89
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 1.038 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 CGCG 254-021 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- CGCG 254-021 (Z 254-021)SIMBAD (CDS, Strasbourg, France)
Original Zwicky Catalog -- CGCG 254-021VizieR 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 +08-33-026 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J18102922+4955167 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1810292+495516 NASA/IPAC Infrared Science Archive (IRSA)
Catalogue of Principal Galaxies -- PGC 061490 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 061490 The Lyon/Meudon Extragalactic Database (LEDA)
NRAO/VLA Sky Survey (NVSS)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- CGCG 254-021GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- CGCG 254-021NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 18h10m29.2s, +49d55m17s (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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