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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 0171                       00h37m21.5s -19d56m03s G        3910  0.013043      12.90    ...    81     6   31   10    12   19     0 Retrieve Retrieve 1

Detailed information for each object

Object No. 1 - NGC 0171

INDEX for NGC 0171

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

31 Photometric data point(s) and SED

Spectra
Redshift-Independent Distances
81 Reference(s)
10 Position data point(s)
12 Redshift data point(s)
19 Diameter data point(s)
6 Note(s)
ESO data
RC3 data

ESSENTIAL NOTE for NGC 0171 (Back to INDEX)

N/A

CROSS-IDENTIFICATIONS for NGC 0171 (Back to INDEX)

Object Names	Type	Object Names	Type
NGC 0171	G	ESO-LV 5400060	G
NGC 0175	G	RR 011b	G
ESO 540- G 006	G	2MIG 0073	G
ESO 003452-2012.7	G	6dF J0037215-195603	G
VV 791a	G	6dFGSv 00280	G
MCG -03-02-024	G	SSRS GROUP 85 NED03	G
2MASX J00372152-1956032	IrS	GSC 5849 00910	G
2MASXi J0037219-195609	IrS	HIPASS J0037-19	RadioS
SDSS J003721.55-195603.2	G	MRSS 540-086779	G
IRAS 00348-2012	IrS	PGC 002232	G
IRAS F00348-2012	IrS	CALIFA 023	G
SGC 003452-2012.7	G	[Sdd95] 023a	G

COORDINATES for NGC 0171 (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)    8.714995  -20.209241  00h34m51.60s  -20d12m33.3s  1.25E+00  1.25E+00    0
Equatorial (J2000.0)    9.339708  -19.934250  00h37m21.53s  -19d56m03.3s  1.25E+00  1.25E+00    0
Ecliptic   (B1950.0)  359.567876  -21.931853                              1.25E+00  1.25E+00    0
Ecliptic   (J2000.0)    0.269059  -21.931283                              1.25E+00  1.25E+00    0
Galactic               98.046785  -82.116775                              1.25E+00  1.25E+00    0
SuperGalactic         276.092143   -1.298154                              1.25E+00  1.25E+00    0

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

REDSHIFT-INDEPENDENT DISTANCES for NGC 0171 (Back to INDEX)

2 Distances found in NED View 2 Individual Distance Measurement(s) for NGC 0171

Summary Statistics computed by NED from 2 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 0171	Distance Modulus (mag)	Metric Distance (Mpc)
Mean	33.30	47.300
Std. Dev.	0.71	14.566
Min.	32.80	37.000
Max.	33.80	57.600
Median	33.30	47.300

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 0171 (Back to INDEX)

Type	As Published	NED Homogenized	Flag	Reference Code
Hierarchy	PR	Pair member, radial velocity confirmed	...	1995ApL&C..30....1R;
Kinematics	HI line width	HI line width	...	2003A&A...412...57P;
Luminosity Class	2.0	LC I-II	...	1991RC3.9.C...0000d
Galaxy Morphology	SB(r)ab	SB(r)ab	...	1991RC3.9.C...0000d
Distance Indicator	Ring Diameter	Ring Diameter	...	1981ApJS...45..541P

21 Detailed Classification(s)

FOREGROUND GALACTIC EXTINCTION for NGC 0171 (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] 0.092 0.077 0.058 0.046 0.032 0.090 0.070 0.048 0.036 0.027 0.015 0.009 0.006 0.003

  

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

Bandpass [µm] A_λ [mag]
Landolt U (0.35)  0.092
Landolt B (0.43)  0.077
Landolt V (0.54)  0.058
Landolt R (0.64)  0.046
Landolt I (0.80)  0.032
CTIO U (0.37)  0.087
CTIO B (0.43)  0.077
CTIO V (0.55)  0.057
CTIO R (0.65)  0.045
CTIO I (0.80)  0.032
UKIRT J (1.25)  0.015
UKIRT H (1.66)  0.009
UKIRT K (2.19)  0.006
UKIRT L' (3.78)  0.003
Gunn g (0.52)  0.062
Gunn r (0.66)  0.043
Gunn i (0.79)  0.033
Gunn z (0.91)  0.026
Spinrad R_S (0.69)  0.041
Stromgren u (0.35)  0.091
Stromgren b (0.47)  0.071
Stromgren v (0.41)  0.080
Stromgren beta (0.49)  0.067
Stromgren y (0.55)  0.057
SDSS u (0.36)  0.090
SDSS g (0.47)  0.070
SDSS r (0.62)  0.048
SDSS i (0.75)  0.036
SDSS z (0.89)  0.027
DSS-II g (0.46)  0.072
DSS-II r (0.65)  0.044
DSS-II i (0.81)  0.031
PS1 g (0.49)  0.067
PS1 r (0.62)  0.048
PS1 i (0.75)  0.036
PS1 z (0.87)  0.028
PS1 y (0.97)  0.023
PS1 w (0.62)  0.050
LSST u (0.37)  0.088
LSST g (0.48)  0.068
LSST r (0.62)  0.048
LSST i (0.75)  0.036
LSST z (0.87)  0.028
LSST y (0.97)  0.023
WFPC2 F300W (0.31)  0.104
WFPC2 F450W (0.46)  0.072
WFPC2 F555W (0.54)  0.058
WFPC2 F606W (0.60)  0.051
WFPC2 F702W (0.69)  0.041
WFPC2 F814W (0.79)  0.033
WFC3 F105W (1.04)  0.020
WFC3 F110W (1.12)  0.019
WFC3 F125W (1.23)  0.015
WFC3 F140W (1.37)  0.013
WFC3 F160W (1.53)  0.011
WFC3 F200LP (0.55)  0.063
WFC3 F218W (0.22)  0.164
WFC3 F225W (0.24)  0.148
WFC3 F275W (0.27)  0.116
WFC3 F300X (0.29)  0.111
WFC3 F336W (0.34)  0.094
WFC3 F350LP (0.59)  0.056
WFC3 F390W (0.40)  0.082
WFC3 F438W (0.43)  0.077
WFC3 F475W (0.48)  0.069
WFC3 F475X (0.50)  0.066
WFC3 F555W (0.53)  0.060
WFC3 F600LP (0.74)  0.038
WFC3 F606W (0.59)  0.053
WFC3 F625W (0.62)  0.048
WFC3 F775W (0.76)  0.035
WFC3 F814W (0.80)  0.032
WFC3 F850LP (0.91)  0.026
ACS clear (0.62)  0.052
ACS F435W (0.43)  0.076
ACS F475W (0.48)  0.069
ACS F550M (0.56)  0.055
ACS F555W (0.54)  0.059
ACS F606W (0.59)  0.052
ACS F625W (0.63)  0.047
ACS F775W (0.77)  0.034
ACS F814W (0.80)  0.032
ACS F850LP (0.90)  0.026
DES g (0.48)  0.068
DES r (0.64)  0.046
DES i (0.78)  0.034
DES z (0.91)  0.026
DES Y (0.99)  0.022


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] 0.114 0.090 0.069 0.056 0.041 0.108 0.080 0.058 0.044 0.031 0.019 0.012 0.008 0.003


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming R_v = 3.1:
A_B = 0.100 mag 

See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 0171 (Back to INDEX)

Helio. Radial Velocity     :      3910 +/-        7 km/s      
Redshift                   :  0.013043 +/- 0.000022        1993ApJ...419...30C
Major Diameter (arcmin)    :  2.1 
Minor Diameter (arcmin)    :  1.9 
Magnitude and Filter       : 12.90
Classifications            : SB(r)ab        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:
12 Redshift data point(s)      31 photometric data point(s)      19 Diameter data point(s)

QUANTITIES DERIVED FROM REDSHIFT for NGC 0171 (Details)(Back to INDEX)

Calculated and Corrected Velocities
V (Heliocentric)           :    3910 +/-      7 km/s      1993ApJ...419...30C
V (Kinematic LSR)          :    3904 +/-      7 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    3935 +/-      7 km/s      1991RC3.9.C...0000d
V (Local Group)            :    3975 +/-      8 km/s      1996AJ....111..794K
V (3K CMB)                 :    3603 +/-     22 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    3816 +/-     14 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    3854 +/-     14 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    3856 +/-     14 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where H_o =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    53.9 +/-    3.8 Mpc      (m-M) = 33.66 +/- 0.15 mag
D (Local Group)            :    54.5 +/-    3.8 Mpc      (m-M) = 33.68 +/- 0.15 mag
D (3K CMB)                 :    49.4 +/-    3.5 Mpc      (m-M) = 33.47 +/- 0.15 mag
D (Virgo Infall only)      :    52.3 +/-    3.7 Mpc      (m-M) = 33.59 +/- 0.15 mag
D (Virgo + GA only)        :    52.8 +/-    3.7 Mpc      (m-M) = 33.61 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    52.8 +/-    3.7 Mpc      (m-M) = 33.61 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     261 pc/arcsec =  0.261 kpc/arcsec =  15.68 kpc/arcmin =   0.94 Mpc/degree
Scale (Local Group)        :     264 pc/arcsec =  0.264 kpc/arcsec =  15.84 kpc/arcmin =   0.95 Mpc/degree
Scale (3K CMB)             :     239 pc/arcsec =  0.239 kpc/arcsec =  14.36 kpc/arcmin =   0.86 Mpc/degree
Scale (Virgo Infall only)  :     253 pc/arcsec =  0.253 kpc/arcsec =  15.20 kpc/arcmin =   0.91 Mpc/degree
Scale (Virgo + GA only)    :     256 pc/arcsec =  0.256 kpc/arcsec =  15.36 kpc/arcmin =   0.92 Mpc/degree
Scale(Virgo + GA + Shapley):     256 pc/arcsec =  0.256 kpc/arcsec =  15.37 kpc/arcmin =   0.92 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 =  6.508 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) =   3910 km/sec  






Cosmology-Corrected Quantities [H_o =  73.00 km/sec/Mpc, Ω_matter =   0.27, Ω_vacuum =   0.73]
[Redshift 0.012019 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        : 49.8 Mpc      (m-M) = 33.49 mag
Angular-Size Distance      : 48.7 Mpc      (m-M) = 33.44 mag
Co-Moving Radial Distance  : 49.2 Mpc      (m-M) = 33.46 mag
Co-Moving Tangential Dist. : 49.2 Mpc      (m-M) = 33.46 mag
Co-Moving Volume           : 0.0005 Gpc^3
Light Travel-Time          :    0.160 Gyr
Age at Redshift 0.012019   :   13.139 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):     236 pc/arcsec =  0.236 kpc/arcsec =  14.15 kpc/arcmin =   0.85 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.95334; Magnitude per Unit Area = 0.05189 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 0171 (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)]
Visual	R (Cousins) (R_T)	11.73 +/- 0.09 mag	1989ESOLV.C...0000L	-21.57 +/- 1.09 [mag]	2.04E+10 +/- 9.04E+09
Near-Infrared	H	9.567 +/- 0.025 mag	20032MASX.C.......:	-23.73 +/- 1.09 [mag]	1.94E+10 +/- 8.46E+09
Mid-Infrared	12 microns (IRAS)	<2.316E-01 Jy	1990IRASF.C...0000M	< 1.55E+36 [W]	< 4.04E+09
Far-Infrared	100 microns (IRAS)	2.473E+00 +/- 10 % Jy	1990IRASF.C...0000M	1.98E+36 +/- 8.86E+35 [W]	5.16E+09 +/- 2.31E+09

NOTE: The above quantities are derived using an estimated Distance Modulus of (33.30 +/- 0.71) mag corresponding to
a Metric Distance of (47.300 +/- 14.566) 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 31 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 0171 (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]
ESO-LV "Quick Blue" IIa-O	184.08	150.95	108	27.0 B-mag arcsec^-2^	1989ESOLV.C...0000L	42.21	34.61
K_s (2MASS "total")	190.20	76.08	120	Diameter for "total" magnitude 20032MASX.C.......:	20032MASX.C.......:	43.62	17.45

NOTE: Physical diameters are derived using a scale of 0.2293 kpc/arcsec based on Average NED-D Metric Distance of (47.300 +/- 14.566) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 19 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 0171 Help (Back to INDEX)

Resources for Object Names	Site/Service
Query SIMBAD by primary NED object name -- NGC 0171	SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 0171	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Revised New General Catalogue -- NGC 0175	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
ESO/Uppsala Survey -- ESO 540- G 006	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG -03-02-024	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J00372152-1956032	NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J0037219-195609	NASA/IPAC Infrared Science Archive (IRSA)
version	SDSS Sky Server
IRAS Point Source Catalog -- IRAS 00348-2012	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F00348-2012	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The ESO-LV catalog-- ESO-LV 5400060	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query 6dF Galaxy Redshift Survey -- 6dF J0037215-195603	6dF Galaxy Redshift Survey
Query 6dF Galaxy Redshift Survey -- 6dFGSv 00280	6dF Galaxy Redshift Survey
Catalogue of Principal Galaxies -- PGC 002232	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 002232	The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2" search radius) -- NGC 0171	GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10"search radius) -- NGC 0171	NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 00h37m21.5s, -19d56m03s (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' search radius)	HEASARC (NASA/GSFC)
Query IRSA for WISE images (10' 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 0171

1 objects found in NED.

Detailed information for each object