SOURCE LISTRow 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 0172 00h37m13.6s -22d35m13s G 3047 0.010164 15.09 ... 55 2 46 11 13 19 0 Retrieve Retrieve 1 |
INDEX for NGC 0172 | |||
|
Detailed Data (NED queries): |
ESSENTIAL NOTE for NGC 0172 (Back to INDEX)N/A |
CROSS-IDENTIFICATIONS for NGC 0172 (Back to INDEX)
|
COORDINATES for NGC 0172 (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) 8.684273 -22.862044 00h34m44.22s -22d51m43.4s 1.25E+00 1.25E+00 0 Equatorial (J2000.0) 9.306708 -22.587028 00h37m13.61s -22d35m13.3s 1.25E+00 1.25E+00 0 Ecliptic (B1950.0) 358.305866 -24.317533 1.25E+00 1.25E+00 0 Ecliptic (J2000.0) 359.007367 -24.317103 1.25E+00 1.25E+00 0 Galactic 86.799105 -84.431821 1.25E+00 1.25E+00 0 SuperGalactic 273.535331 -2.009784 1.25E+00 1.25E+00 0Additional detailed measurements with references are also available by clicking below: 11 Position data point(s) |
REDSHIFT-INDEPENDENT DISTANCES for NGC 0172 (Back to INDEX) 9 Distances found in NED View 9 Individual Distance Measurement(s) for NGC 0172 Summary Statistics computed by NED from 9 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.
|
CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 0172 (Back to INDEX)
|
FOREGROUND GALACTIC EXTINCTION for NGC 0172 (Back to INDEX)Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration
For completeness, we include the original SFD98 values:
Galactic Extinction based on H I Column Densities and Galaxy Counts (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1: AB = 0.090 mag See Notes on Galactic Extinction for important caveats. |
BASIC DATA for NGC 0172 (Back to INDEX)Helio. Radial Velocity : 3047 +/- 3 km/s Redshift : 0.010164 +/- 0.000010 1998A&AS..130..333T Major Diameter (arcmin) : 2.0 Minor Diameter (arcmin) : 0.3 Magnitude and Filter : 15.09 Classifications : SB(r)bc? sp HII NOTE: This information is indicative only. With the exception of the |
QUANTITIES DERIVED FROM REDSHIFT for NGC 0172 (Details)(Back to INDEX)Calculated and Corrected Velocities V (Heliocentric) : 3047 +/- 3 km/s 1998A&AS..130..333T V (Kinematic LSR) : 3041 +/- 3 km/s 1986MNRAS.221.1023K V (Galactocentric GSR) : 3063 +/- 3 km/s 1991RC3.9.C...0000d V (Local Group) : 3099 +/- 4 km/s 1996AJ....111..794K V (3K CMB) : 2748 +/- 21 km/s 1996ApJ...473..576F V (Virgo Infall only) : 2950 +/- 11 km/s 2000ApJ...529..786M V (Virgo + GA only) : 3012 +/- 12 km/s 2000ApJ...529..786M V (Virgo + GA + Shapley) : 3016 +/- 12 km/s 2000ApJ...529..786M Hubble Flow Distance and Distance Modulus (where Ho = 73.0 +/- 5 km/sec/Mpc) D (Galactocentric GSR) : 42.0 +/- 2.9 Mpc (m-M) = 33.11 +/- 0.15 mag D (Local Group) : 42.5 +/- 3.0 Mpc (m-M) = 33.14 +/- 0.15 mag D (3K CMB) : 37.6 +/- 2.7 Mpc (m-M) = 32.88 +/- 0.15 mag D (Virgo Infall only) : 40.4 +/- 2.8 Mpc (m-M) = 33.03 +/- 0.15 mag D (Virgo + GA only) : 41.3 +/- 2.9 Mpc (m-M) = 33.08 +/- 0.15 mag D (Virgo + GA + Shapley) : 41.3 +/- 2.9 Mpc (m-M) = 33.08 +/- 0.15 mag Scale at Hubble Flow Distances Scale (Galactocentric GSR) : 203 pc/arcsec = 0.203 kpc/arcsec = 12.20 kpc/arcmin = 0.73 Mpc/degree Scale (Local Group) : 206 pc/arcsec = 0.206 kpc/arcsec = 12.35 kpc/arcmin = 0.74 Mpc/degree Scale (3K CMB) : 182 pc/arcsec = 0.182 kpc/arcsec = 10.95 kpc/arcmin = 0.66 Mpc/degree Scale (Virgo Infall only) : 196 pc/arcsec = 0.196 kpc/arcsec = 11.75 kpc/arcmin = 0.71 Mpc/degree Scale (Virgo + GA only) : 200 pc/arcsec = 0.200 kpc/arcsec = 12.00 kpc/arcmin = 0.72 Mpc/degree Scale(Virgo + GA + Shapley): 200 pc/arcsec = 0.200 kpc/arcsec = 12.02 kpc/arcmin = 0.72 Mpc/degree |
QUICK-LOOK PHOTOMETRY and LUMINOSITIES for NGC 0172 (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).
a Metric Distance of (41.433 +/- 5.629) 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 46 Photometric data point(s) available in NED. |
QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 0172 (Back to INDEX) The largest diameters in the Visual and Near-Infrared spectral regions, when available:
The quantities quoted above have not necessarily been corrected for foreground extinction. View details for 19 Diameter data point(s) available in NED. |