NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-16 T22:29:34 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 IC 3655


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    IC 3655                        12h41m14.4s +20d39m58s G        6596  0.022001      17.13    ...    16     0   36    6     1    6     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - IC 3655

INDEX for IC 3655
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
   
36 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
16 Reference(s)   
6 Position data point(s)
1 Redshift data point(s)   
6 Diameter data point(s)   

ESSENTIAL NOTE for IC 3655 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for IC 3655 (Back to INDEX)
Object Names Type Object Names Type
IC 3655G MAPS-NGP O_378_0681503 G
2MASX J12411443+2039581 IrS NGP9 F378-0694557 G
2MASXi J1241144+203958 IrS NPM1G +20.0332 G
2MASS J12411445+2039583 IrS NSA 118594 G
SDSS J124114.46+203958.1 G LEDA 1633163 G
SDSS J124114.46+203958.2 G KIG 0548:[VOV2007] 004 G
GALEXASC J124114.54+203958.2 UvS [TTL2012] 309359 G
ASK 657039.0 G    

COORDINATES for IC 3655 (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)  189.687954   20.940324 12h38m45.109s +20d56m25.17s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  190.310253   20.666189 12h41m14.461s +20d39m58.28s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  180.123878   22.980747                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  180.825154   22.980178                              5.00E-01  5.00E-01    0
Galactic              282.569105   83.131114                              5.00E-01  5.00E-01    0
SuperGalactic          95.640765    2.375499                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
6 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for IC 3655 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for IC 3655 (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for IC 3655 (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]0.1470.1230.0930.0730.0510.1440.1120.0770.0580.0430.0240.0150.0100.005
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]0.1850.1470.1130.0910.0660.1750.1290.0930.0710.0500.0310.0200.0120.005


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.160 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for IC 3655 (Back to INDEX)
Helio. Radial Velocity     :      6596 km/s       
Redshift                   :  0.022001            2011ApJ...735..125S
Major Diameter (arcmin)    :  0.28
Minor Diameter (arcmin)    :  0.26
Magnitude and Filter       : 17.13
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:
1 Redshift data point(s)      36 photometric data point(s)      6 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT(Details)
Calculated and Corrected Velocities
V (Heliocentric)           :    6596  km/s                2011ApJ...735..125S
V (Kinematic LSR)          :    6602  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :    6576 +/-      1 km/s      1991RC3.9.C...0000d
V (Local Group)            :    6537 +/-      4 km/s      1996AJ....111..794K
V (3K CMB)                 :    6899 +/-     21 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    6769 +/-     17 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    7148 +/-     31 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    7190 +/-     31 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :    90.1 +/-    6.3 Mpc      (m-M) = 34.77 +/- 0.15 mag
D (Local Group)            :    89.5 +/-    6.3 Mpc      (m-M) = 34.76 +/- 0.15 mag
D (3K CMB)                 :    94.5 +/-    6.6 Mpc      (m-M) = 34.88 +/- 0.15 mag
D (Virgo Infall only)      :    92.7 +/-    6.5 Mpc      (m-M) = 34.84 +/- 0.15 mag
D (Virgo + GA only)        :    97.9 +/-    6.9 Mpc      (m-M) = 34.95 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    98.5 +/-    6.9 Mpc      (m-M) = 34.97 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     437 pc/arcsec =  0.437 kpc/arcsec =  26.20 kpc/arcmin =   1.57 Mpc/degree
Scale (Local Group)        :     434 pc/arcsec =  0.434 kpc/arcsec =  26.05 kpc/arcmin =   1.56 Mpc/degree
Scale (3K CMB)             :     458 pc/arcsec =  0.458 kpc/arcsec =  27.49 kpc/arcmin =   1.65 Mpc/degree
Scale (Virgo Infall only)  :     450 pc/arcsec =  0.450 kpc/arcsec =  26.97 kpc/arcmin =   1.62 Mpc/degree
Scale (Virgo + GA only)    :     475 pc/arcsec =  0.475 kpc/arcsec =  28.48 kpc/arcmin =   1.71 Mpc/degree
Scale(Virgo + GA + Shapley):     477 pc/arcsec =  0.477 kpc/arcsec =  28.65 kpc/arcmin =   1.72 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 = 3.491 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 6596 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.023011 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 96.2 Mpc (m-M) = 34.92 mag Angular-Size Distance : 91.9 Mpc (m-M) = 34.82 mag Co-Moving Radial Distance : 94.1 Mpc (m-M) = 34.87 mag Co-Moving Tangential Dist. : 94.1 Mpc (m-M) = 34.87 mag Co-Moving Volume : 0.00349 Gpc^3 Light Travel-Time : 0.303 Gyr Age at Redshift 0.023011 : 12.996 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 446 pc/arcsec = 0.446 kpc/arcsec = 26.75 kpc/arcmin = 1.60 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.91302; Magnitude per Unit Area = 0.0988 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 IC 3655 (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 17.9654 +/- 0.0598199 mag 2012GASC..C...0000S-16.95 +/- 0.50 [mag] 8.81E+08 +/- 1.83E+08
Visualz (SDSS Model) AB 15.291 +/- 0.007 asinh mag 2007SDSS6.C...0000:-19.63 +/- 0.50 [mag] 2.56E+09 +/- 5.12E+08
Near-InfraredH 13.809 +/- 0.108 mag 20032MASX.C.......:-21.11 +/- 0.51 [mag] 1.61E+09 +/- 3.63E+08
NOTE: The above quantities are derived using a Distance Modulus of 34.92 mag corresponding to
a Luminosity Distance of 96.2 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 36 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for IC 3655 (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]
r (SDSS Isophotal) 35.4229.048 25.0 mag arcsec^-2^ 2007SDSS6.C...0000:16.9113.87
K_s (2MASS "total") 20.4020.4090 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:9.749.74
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.477 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 6 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for IC 3655 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- IC 3655SIMBAD (CDS, Strasbourg, France)
2MASS Extended Source Images (JHKs) -- 2MASX J12411443+2039581 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1241144+203958 NASA/IPAC Infrared Science Archive (IRSA)
version
SDSS Sky Server
Retrieve mean data from LEDA -- PGC 1633163 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- IC 3655GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- IC 3655NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h41m14.4s, +20d39m58s (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)
version
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)
The NRAO Data Archive System

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