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You have selected the following parameters to search on:

Parameters for Distances and Cosmology: H_o= 73.0; Ω_matter = 0.27; Ω_vacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

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   *NGC 4638                       12h42m47.4s +11d26m33s G        1152  0.003843      12.1g    ...   259     9   65   22    11   12     0 Retrieve Retrieve 1

Detailed information for each object

Object No. 1 - NGC 4638

INDEX for NGC 4638

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

65 Photometric data point(s) and SED

Spectra
Redshift-Independent Distances
259 Reference(s)
22 Position data point(s)
11 Redshift data point(s)
12 Diameter data point(s)
9 Note(s)
UGC data
RC3 data

ESSENTIAL NOTE for NGC 4638 (Back to INDEX)

Identification as NGC 4667 is not certain.

CROSS-IDENTIFICATIONS for NGC 4638 (Back to INDEX)

Object Names	Type	Object Names	Type
NGC 4638	G	NSA 142017	G
NGC 4667	G	PGC 042728	G
UGC 07880	G	SSTSL2 J124247.41+112633.5	IrS
VCC 1938	G	UZC J124247.4+112633	G
CGCG 070-229 NED01	G	EVCC 2211	G
CGCG 071-006 NED01	G	CXO J124247.3+112633	XrayS
CGCG 1240.3+1143 NED01	G	1WGA J1242.7+1126	XrayS
MCG +02-32-187	G	2XMM J124247.4+112634	XrayS
2MASX J12424743+1126328	IrS	2XMMp J124247.4+112633	XrayS
2MASS J12424741+1126329	IrS	LGG 292:[G93] 025	G
SDSS J124247.42+112633.0	G	[M98j] 174 NED197	G
LDCE 0904 NED231	G	[TH2002] 020	G
HDCE 0720 NED190	G	[FCJ2006] 025	G
USGC U490 NED48	G	[PJC2008] 025	G
ACSVCS 025	G	[RG2008] J190.69760+11.44251	G
EON J190.698+11.442	G	v2MCG 51:[DMP2012] 5	G
[BEC2010] HRS 240	G	RSCG 65:[WBJ2013] D	G

COORDINATES for NGC 4638 (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)  190.067217   11.716330 12h40m16.132s +11d42m58.79s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  190.697602   11.442507 12h42m47.424s +11d26m33.03s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  184.521144   14.738183                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  185.221367   14.737103                              5.00E-01  5.00E-01    0
Galactic              295.135708   74.183189                              5.00E-01  5.00E-01    0
SuperGalactic         104.613504    0.195029                              5.00E-01  5.00E-01    0

Additional detailed measurements with references are also available by clicking below:
22 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 4638 (Back to INDEX)

17 Distances found in NED View 17 Individual Distance Measurement(s) for NGC 4638

Summary Statistics computed by NED from 17 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.

NGC 4638	Distance Modulus (mag)	Metric Distance (Mpc)
Mean	30.89	15.565
Std. Dev.	0.58	3.796
Min.	29.74	8.870
Max.	31.68	21.700
Median	31.10	16.600

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4638 (Back to INDEX)

Type	As Published	NED Homogenized	Flag	Reference Code
Hierarchy	RG	in a radial-velocity based grouping	...	1998Afz....41..308M
Galaxy Morphology	S0^- edge-on	S0^- edge-on	...	1991RC3.9.C...0000d
Distance Indicator	Tully-Fisher	Tully-Fisher	...	2007A&A...465...71T

28 Detailed Classification(s)

FOREGROUND GALACTIC EXTINCTION for NGC 4638 (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 R_v = 3.1 and different source spectrum than SFD98.



     L  a  n  d  o  l  t S  D  S  S U  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)
A_λ [mag] 0.111 0.092 0.070 0.055 0.038 0.108 0.084 0.058 0.043 0.032 0.018 0.011 0.008 0.004

  

Show/Hide A_λ magnitudes in all 88 photometric bands based on SF11
 

Bandpass [µm] A_λ [mag]
Landolt U (0.35)  0.111
Landolt B (0.43)  0.092
Landolt V (0.54)  0.070
Landolt R (0.64)  0.055
Landolt I (0.80)  0.038
CTIO U (0.37)  0.105
CTIO B (0.43)  0.093
CTIO V (0.55)  0.068
CTIO R (0.65)  0.054
CTIO I (0.80)  0.039
UKIRT J (1.25)  0.018
UKIRT H (1.66)  0.011
UKIRT K (2.19)  0.008
UKIRT L' (3.78)  0.004
Gunn g (0.52)  0.074
Gunn r (0.66)  0.052
Gunn i (0.79)  0.040
Gunn z (0.91)  0.031
Spinrad R_S (0.69)  0.049
Stromgren u (0.35)  0.110
Stromgren b (0.47)  0.085
Stromgren v (0.41)  0.097
Stromgren beta (0.49)  0.081
Stromgren y (0.55)  0.069
SDSS u (0.36)  0.108
SDSS g (0.47)  0.084
SDSS r (0.62)  0.058
SDSS i (0.75)  0.043
SDSS z (0.89)  0.032
DSS-II g (0.46)  0.086
DSS-II r (0.65)  0.053
DSS-II i (0.81)  0.038
PS1 g (0.49)  0.081
PS1 r (0.62)  0.058
PS1 i (0.75)  0.043
PS1 z (0.87)  0.034
PS1 y (0.97)  0.028
PS1 w (0.62)  0.060
LSST u (0.37)  0.106
LSST g (0.48)  0.083
LSST r (0.62)  0.058
LSST i (0.75)  0.043
LSST z (0.87)  0.034
LSST y (0.97)  0.028
WFPC2 F300W (0.31)  0.125
WFPC2 F450W (0.46)  0.087
WFPC2 F555W (0.54)  0.070
WFPC2 F606W (0.60)  0.062
WFPC2 F702W (0.69)  0.050
WFPC2 F814W (0.79)  0.040
WFC3 F105W (1.04)  0.025
WFC3 F110W (1.12)  0.022
WFC3 F125W (1.23)  0.019
WFC3 F140W (1.37)  0.016
WFC3 F160W (1.53)  0.013
WFC3 F200LP (0.55)  0.075
WFC3 F218W (0.22)  0.198
WFC3 F225W (0.24)  0.178
WFC3 F275W (0.27)  0.140
WFC3 F300X (0.29)  0.133
WFC3 F336W (0.34)  0.114
WFC3 F350LP (0.59)  0.067
WFC3 F390W (0.40)  0.099
WFC3 F438W (0.43)  0.092
WFC3 F475W (0.48)  0.083
WFC3 F475X (0.50)  0.079
WFC3 F555W (0.53)  0.073
WFC3 F600LP (0.74)  0.045
WFC3 F606W (0.59)  0.063
WFC3 F625W (0.62)  0.058
WFC3 F775W (0.76)  0.042
WFC3 F814W (0.80)  0.039
WFC3 F850LP (0.91)  0.031
ACS clear (0.62)  0.062
ACS F435W (0.43)  0.092
ACS F475W (0.48)  0.083
ACS F550M (0.56)  0.067
ACS F555W (0.54)  0.071
ACS F606W (0.59)  0.063
ACS F625W (0.63)  0.057
ACS F775W (0.77)  0.042
ACS F814W (0.80)  0.039
ACS F850LP (0.90)  0.032
DES g (0.48)  0.083
DES r (0.64)  0.056
DES i (0.78)  0.041
DES z (0.91)  0.031
DES Y (0.99)  0.027


For completeness, we include the original SFD98 values:


     L  a  n  d  o  l  t S  D  S  S U  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)
A_λ [mag] 0.138 0.110 0.084 0.068 0.049 0.131 0.096 0.070 0.053 0.038 0.023 0.015 0.009 0.004


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming R_v = 3.1:
A_B = 0.040 mag 

See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4638 (Back to INDEX)

Helio. Radial Velocity     :      1152 +/-        5 km/s      
Redshift                   :  0.003843 +/- 0.000017        2011MNRAS.413..813C
Major Diameter (arcmin)    :  2.17
Minor Diameter (arcmin)    :  1.27
Magnitude and Filter       : 12.1g
Classifications            : S0-                 

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:
11 Redshift data point(s)      65 photometric data point(s)      12 Diameter data point(s)

QUANTITIES DERIVED FROM REDSHIFT for NGC 4638 (Details)(Back to INDEX)

Calculated and Corrected Velocities
V (Heliocentric)           :    1152 +/-      5 km/s      2011MNRAS.413..813C
V (Kinematic LSR)          :    1157 +/-      5 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    1103 +/-      5 km/s      1991RC3.9.C...0000d
V (Local Group)            :    1051 +/-      8 km/s      1996AJ....111..794K
V (3K CMB)                 :    1476 +/-     23 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     957 +/-     10 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    1012 +/-     11 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    1012 +/-     11 km/s      2000ApJ...529..786M
Note:Object in Virgo Cluster (Radius = 10 deg; Velocity Range = 600-2300 km/sec)
 Virgo Cluster mean velocity (957 km/sec) assigned.  See Local Velocity Field Model details

Hubble Flow Distance and Distance Modulus (where H_o =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    15.1 +/-    1.1 Mpc      (m-M) = 30.90 +/- 0.15 mag
D (Local Group)            :    14.4 +/-    1.0 Mpc      (m-M) = 30.79 +/- 0.15 mag
D (3K CMB)                 :    20.2 +/-    1.5 Mpc      (m-M) = 31.53 +/- 0.15 mag
D (Virgo Infall only)      :    13.1 +/-    0.9 Mpc      (m-M) = 30.59 +/- 0.15 mag
D (Virgo + GA only)        :    13.9 +/-    1.0 Mpc      (m-M) = 30.71 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    13.9 +/-    1.0 Mpc      (m-M) = 30.71 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      73 pc/arcsec =  0.073 kpc/arcsec =   4.39 kpc/arcmin =   0.26 Mpc/degree
Scale (Local Group)        :      70 pc/arcsec =  0.070 kpc/arcsec =   4.19 kpc/arcmin =   0.25 Mpc/degree
Scale (3K CMB)             :      98 pc/arcsec =  0.098 kpc/arcsec =   5.88 kpc/arcmin =   0.35 Mpc/degree
Scale (Virgo Infall only)  :      64 pc/arcsec =  0.064 kpc/arcsec =   3.81 kpc/arcmin =   0.23 Mpc/degree
Scale (Virgo + GA only)    :      67 pc/arcsec =  0.067 kpc/arcsec =   4.03 kpc/arcmin =   0.24 Mpc/degree
Scale(Virgo + GA + Shapley):      67 pc/arcsec =  0.067 kpc/arcsec =   4.03 kpc/arcmin =   0.24 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 = 24.786 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) =   1152 km/sec  






Cosmology-Corrected Quantities [H_o =  73.00 km/sec/Mpc, Ω_matter =   0.27, Ω_vacuum =   0.73]
[Redshift 0.004924 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        : 20.3 Mpc      (m-M) = 31.54 mag
Angular-Size Distance      : 20.1 Mpc      (m-M) = 31.52 mag
Co-Moving Radial Distance  : 20.2 Mpc      (m-M) = 31.53 mag
Co-Moving Tangential Dist. : 20.2 Mpc      (m-M) = 31.53 mag
Co-Moving Volume           : 3.45e-05 Gpc^3
Light Travel-Time          :    0.066 Gyr
Age at Redshift 0.004924   :   13.233 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):      97 pc/arcsec =  0.097 kpc/arcsec =   5.85 kpc/arcmin =   0.35 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.98054; Magnitude per Unit Area = 0.02133 mag







To change Cosmological Input Parameters for Derived Quantities:
Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button 

H_oΩ_matterΩ_vacuum
    


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 NGC 4638 (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 νL_ν [W]	νL_ν [L_☉(Bolometric)]
X-Ray	0.2-4 keV (EINSTEIN)	1.91E-13 ergs sec^-1^ cm^-2^	1992ApJS...80..531F	5.54E+32 [W]	1.44E+06
Visual	F850LP (HST/ACS) AB	10.38 mag	2006ApJS..164..334F	-20.51 [mag]	6.12E+09
Near-Infrared	H	8.462 +/- 0.012 mag	20032MASX.C.......:	-22.43 +/- 0.30 [mag]	5.79E+09 +/- 6.88E+08
Mid-Infrared	24 microns (MIPS)	19.24 milliJy	2012ApJ...744..152L	7.07E+33 [W]	1.84E+07
Radio	2380 MHz	6. +/- 4. milliJy	1978ApJS...36...53D	4.14E+29 +/- 2.80E+29 [W]	1.08E+03 +/- 7.29E+02

NOTE: The above quantities are derived using an estimated Distance Modulus of (30.89 +/- 0.58) mag corresponding to
a Metric Distance of (15.565 +/- 3.796) 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 65 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4638 (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	Refcode	Physical Major Axis (2a) [kpc]	Physical Minor Axis (2b) [kpc]
POSS1 103a-O	174.00	114.84	124	About 25.0 B-mag arcsec^-2^	1973UGC...C...0000N	13.13	8.67
K_s (2MASS "total")	162.60	94.31	120	Diameter for "total" magnitude 20032MASX.C.......:	20032MASX.C.......:	12.27	7.12

NOTE: Physical diameters are derived using a scale of 0.0755 kpc/arcsec based on Average NED-D Metric Distance of (15.565 +/- 3.796) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 12 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 4638 Help (Back to INDEX)

Resources for Object Names	Site/Service
Query SIMBAD by primary NED object name -- NGC 4638	SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4638	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Revised New General Catalogue -- NGC 4667	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 07880	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG +02-32-187	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J12424743+1126328	NASA/IPAC Infrared Science Archive (IRSA)
version	SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 042728	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 042728	The Lyon/Meudon Extragalactic Database (LEDA)
Query UZC Spectral Archive (60 arcsec search radius)	Updated Zwicky Catalog Data (Harvard/SAO)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4638	GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4638	NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h42m47.4s, +11d26m33s (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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NED results for object NGC 4638

1 objects found in NED.

Detailed information for each object