NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T01:58:34 PDT
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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. 1

INDEX for IC 1521
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
   
25 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
11 Reference(s)   
3 Position data point(s)
2 Redshift data point(s)   
2 Diameter data point(s)   

ESSENTIAL NOTE for IC 1521 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for IC 1521 (Back to INDEX)
Object Names Type Object Names Type
IC 1521G 6dF J2358597-070848 G
2MASX J23585964-0708484 IrS GSC 5259 00798 G
2MASXi J2358596-070847 IrS NSA 153000 G
2MASS J23585965-0708483 IrS LEDA 170418 G
GALEXASC J235859.70-070847.8 UvS NVSS J235859-070848 RadioS
IRAS F23564-0725 IrS [SLK2004] 1923 IrS
ISOSS J23590-0708 IrS    

COORDINATES for IC 1521 (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)  359.107531   -7.425184  23h56m25.81s  -07d25m30.7s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)  359.748583   -7.146778  23h58m59.66s  -07d08m48.4s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)  356.215311   -6.454626                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)  356.914626   -6.454463                              1.25E+00  1.25E+00    0
Galactic               88.629899  -66.460353                              1.25E+00  1.25E+00    0
SuperGalactic         285.585429   11.389729                              1.25E+00  1.25E+00    0
Additional detailed measurements with references are also available by clicking below:
3 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for IC 1521 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for IC 1521 (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for IC 1521 (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]0.1590.1330.1000.0790.0550.1550.1210.0840.0620.0460.0260.0160.0110.006
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]0.1950.1550.1190.0960.0700.1850.1360.0990.0750.0530.0320.0210.0130.005


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.140 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for IC 1521 (Back to INDEX)
Helio. Radial Velocity     :      8533 +/-       39 km/s      
Redshift                   :  0.028463 +/- 0.000130        1998AJ....116....1D
Major Diameter (arcmin)    :  0.9 
Minor Diameter (arcmin)    :  0.6 
Magnitude and Filter       : 14.90
Classifications            :                HII  

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:
2 Redshift data point(s)      25 photometric data point(s)      2 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for IC 1521 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    8533 +/-     39 km/s      1998AJ....116....1D
V (Kinematic LSR)          :    8532 +/-     39 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    8619 +/-     39 km/s      1991RC3.9.C...0000d
V (Local Group)            :    8679 +/-     40 km/s      1996AJ....111..794K
V (3K CMB)                 :    8181 +/-     46 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    8501 +/-     42 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    8414 +/-     42 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    8404 +/-     42 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   118.1 +/-    8.3 Mpc      (m-M) = 35.36 +/- 0.15 mag
D (Local Group)            :   118.9 +/-    8.3 Mpc      (m-M) = 35.38 +/- 0.15 mag
D (3K CMB)                 :   112.1 +/-    7.9 Mpc      (m-M) = 35.25 +/- 0.15 mag
D (Virgo Infall only)      :   116.5 +/-    8.2 Mpc      (m-M) = 35.33 +/- 0.15 mag
D (Virgo + GA only)        :   115.3 +/-    8.1 Mpc      (m-M) = 35.31 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   115.1 +/-    8.1 Mpc      (m-M) = 35.31 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     572 pc/arcsec =  0.572 kpc/arcsec =  34.35 kpc/arcmin =   2.06 Mpc/degree
Scale (Local Group)        :     576 pc/arcsec =  0.576 kpc/arcsec =  34.58 kpc/arcmin =   2.07 Mpc/degree
Scale (3K CMB)             :     543 pc/arcsec =  0.543 kpc/arcsec =  32.60 kpc/arcmin =   1.96 Mpc/degree
Scale (Virgo Infall only)  :     565 pc/arcsec =  0.565 kpc/arcsec =  33.88 kpc/arcmin =   2.03 Mpc/degree
Scale (Virgo + GA only)    :     559 pc/arcsec =  0.559 kpc/arcsec =  33.53 kpc/arcmin =   2.01 Mpc/degree
Scale(Virgo + GA + Shapley):     558 pc/arcsec =  0.558 kpc/arcsec =  33.49 kpc/arcmin =   2.01 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 = 2.986 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 8533 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.027288 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 114 Mpc (m-M) = 35.29 mag Angular-Size Distance : 108 Mpc (m-M) = 35.18 mag Co-Moving Radial Distance : 111 Mpc (m-M) = 35.24 mag Co-Moving Tangential Dist. : 111 Mpc (m-M) = 35.24 mag Co-Moving Volume : 0.0058 Gpc^3 Light Travel-Time : 0.359 Gyr Age at Redshift 0.027288 : 12.940 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 526 pc/arcsec = 0.526 kpc/arcsec = 31.56 kpc/arcmin = 1.89 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.89791; Magnitude per Unit Area = 0.1169 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 1521 (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 17.1652 +/- 0.0306395 mag 2012GASC..C...0000S-18.13 +/- 0.50 [mag] 2.60E+09 +/- 5.25E+08
Near-InfraredH 11.707 +/- 0.038 mag 20032MASX.C.......:-23.59 +/- 0.50 [mag] 1.58E+10 +/- 3.21E+09
Mid-Infrared12 microns (IRAS) <1.504E-01 Jy 1990IRASF.C...0000M < 5.88E+36 [W] < 1.53E+10
Far-Infrared170 microns (ISO) 1.7 +/- 30 % Jy 2004A&A...422...39S 4.69E+36 +/- 1.69E+36 [W] 1.22E+10 +/- 4.40E+09
Radio1.4GHz 4.6 +/- 0.5 milliJy 1998AJ....115.1693C 1.01E+31 +/- 2.30E+30 [W] 2.63E+04 +/- 5.98E+03
NOTE: The above quantities are derived using a Distance Modulus of 35.29 mag corresponding to
a Luminosity Distance of 114.5 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 25 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for IC 1521 (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]
K_s (2MASS "total") 49.3037.47100 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:27.5220.91
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.558 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 2 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for IC 1521 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- IC 1521SIMBAD (CDS, Strasbourg, France)
2MASS Extended Source Images (JHKs) -- 2MASX J23585964-0708484 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J2358596-070847 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Faint Source Catalog -- IRAS F23564-0725 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query 6dF Galaxy Redshift Survey -- 6dF J2358597-070848 6dF Galaxy Redshift Survey
NRAO/VLA Sky Survey (NVSS)
Retrieve mean data from LEDA -- PGC 170418 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- IC 1521GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- IC 1521NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 23h58m59.6s, -07d08m48s (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)
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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