NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-19 T23:27:09 PDT
Help | Comment | NED Home

Diameter data point(s) for object NGC 7172

Diameter Data --- Published and Homogenized (arcsec) Units

  Published UnitsHomogenized Units
No.Observed Passband
REFCODE
Major Axis
(2a)
Major Axis UnitsMinor Axis
(2b)
Minor Axis UnitsAxis Ratio (b/a)Major Axis Unc.Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
Position Angle
(deg)
[published]
Reference LevelFrequency (Hz)Major Axis
(2a)
(arcsec)
Major Axis Unc.Axis Ratio (b/a)Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
cos-1(b/a)
(deg)
Position Angle
(deg)
[J2000]
1 POSS1 103a-O
1968MCG4..C...0000V
0.80 arcmin 0.30 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 48.00 ... 0.38 0.62 0.75 68 ...
2 POSS1 103a-O
1968MCG4..C...0000V
2.00 arcmin 1.20 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 120.00 ... 0.60 0.40 0.47 53 ...
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
2.50 arcmin 1.30 arcmin ... ... ... ... 100
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 150.00 ... 0.52 0.48 0.57 59 100
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
164.06 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 164.06 ... 0.48 0.52 0.63 61 101
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
211.35 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 211.35 ... 0.48 0.52 0.63 61 101
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
285.10 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 285.10 ... 0.48 0.52 0.63 61 101
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
112.20 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
70% total B light 6.81E+14 112.20 ... 0.48 0.52 0.63 61 101
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
144.54 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
80% total B light 6.81E+14 144.54 ... 0.48 0.52 0.63 61 101
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
234.42 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
90% total B light 6.81E+14 234.42 ... 0.48 0.52 0.63 61 101
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
80.35 arcsec ... ... 2.09 (a/b) ... ... ... 101.03
[B1950]
50% total B light, major dia. 6.81E+14 80.35 ... 0.48 0.52 0.63 61 101
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
58.21 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 58.21 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
23.36 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 23.36 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
25.09 arcsec ... ... 1.73 (a/b) ... ... ... 102.00
[B1950]
B exponential scale length 6.81E+14 25.09 ... 0.58 0.42 0.50 55 102
[J2000]
14 ESO-LV IIIa-F
1989ESOLV.C...0000L
11.26 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 11.26 ... ... ... ... ... ...
15 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.39 log(2a) + 1 ... ... 0.25
log(a/b)
0.02 ... ... 100
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 147.30 6.90 0.56 0.44 0.52 56 100
[J2000]
16 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.01 log(2a) + 1 ... ... ... 0.01 ... ... ... ... 6.81E+14 61.40 1.40 ... ... ... ... ...
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.39 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 147.30 ... ... ... ... ... ...
18 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
60.3 (a) arcsec ... ... 0.460 (b/a) ... ... ... -82.5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 120.60 ... 0.46 0.54 0.65 63 98
[J2000]
19 K_s (LGA/2MASS "total")
2003AJ....125..525J
97.8 (a) arcsec ... ... 0.460 (b/a) ... ... ... -82.5
[J2000]
Diameter for "total" magnitude 1.38E+14 195.60 ... 0.46 0.54 0.65 63 98
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1968MCG4..C...0000V
Published Object Name         : MCG -05-52-007                
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 0.80       arcmin                   2a = 48.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.30      arcmin              2b = 18.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.38
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.62
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.75
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 68 deg
Position Angle [Equinox]      : ...                                 ...
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : Very high surface brightness  
Frequency                     : 4050         A                      7.40E+14 Hz
Frequency Mode                : Broad-band detector (e.g. photographic plate)

Measurement Mode               
    Detector Type             : Photographic plate, print, or film
    Fitting Technique         : Eye estimate
    Measured Quantity         : "Inner" diameter
Coordinates Targeted          : 215912          -3210    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -05-52-007 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.00 arcmin 2a = 120.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.20 arcmin 2b = 72.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Intermed. surface brightness Frequency : 4050 A 7.40E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : "Outer" diameter Coordinates Targeted : 215912 -3210 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 466- G 038 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 2.50 arcmin 2a = 150.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.30 arcmin 2b = 78.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.52 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.48 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.57 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 100 deg [B1950] 100 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : About 25.5 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : "Outer" diameter Coordinates Targeted : 215907. -320636. (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 164.06 arcsec 2a = 164.06 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 342.51 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 211.35 arcsec 2a = 211.35 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 441.23 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 26.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 6 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 285.10 arcsec 2a = 285.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 595.20 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 27.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 7 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 112.20 arcsec 2a = 112.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 234.24 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 70% total B light Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 8 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 144.54 arcsec 2a = 144.54 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 301.75 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 80% total B light Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 9 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 234.42 arcsec 2a = 234.42 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 489.39 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 90% total B light Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 80.35 arcsec 2a = 80.35 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 167.75 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.09 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 101.03 deg [B1950] 101 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 50% total B light, major dia. Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 11 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 58.21 arcsec 2a = 58.21 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 50% total B light, aperture Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 23.36 arcsec 2a = 23.36 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : B disk exp. scale length Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 25.09 arcsec 2a = 25.09 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 43.33 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.73 b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 102.00 deg [B1950] 102 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : B exponential scale length Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 14 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4660380 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 11.26 arcsec 2a = 11.26 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : R exponential scale length Frequency : 6400 A 4.68E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 329.779175 -32.110001 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 15 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 466- G 038 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.39 2a = 147.30 arcsec Uncertainty : 0.02 6.90 arcsec Minor Axis (2b) : ... 2b = 82.78 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.25 b/a = 0.56 Uncertainty : 0.03 0.04 Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 100 deg [J2000] 100 deg [J2000] Uncertainty : ... ... Significance : Mean error Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 220201.6 -315207. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 16 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 466- G 038 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.01 2a = 61.40 arcsec Uncertainty : 0.01 1.40 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Mean error Diameter Reference Level : ... Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 220201.6 -315207. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 17 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 466- G 038 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.39 2a = 147.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 220201.6 -315207. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 18 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 7172 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 60.3 arcsec 2a = 120.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 55.48 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.460 b/a = 0.46 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : -82.5 deg [J2000] 98 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 20.0 K-mag arcsec^-2^ Frequency : 2.17 microns 1.38E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Ellipse fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 330.507904 -31.869890 (J2000) Qualifiers : From new, raw data NED Comment :
No. 19 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 7172 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 97.8 arcsec 2a = 195.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 89.98 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.460 b/a = 0.46 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : -82.5 deg [J2000] 98 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Diameter for "total" magnitude Frequency : 2.17 microns 1.38E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Ellipse fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 330.507904 -31.869890 (J2000) Qualifiers : From new, raw data NED Comment :

Back to NED Home