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Date and Time of the Query: 2019-08-18 T23:28:47 PDT
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Diameter data point(s) for object NGC 4945

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 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
26.00 arcmin 6.00 arcmin ... ... ... ... 43
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 1560.00 ... 0.23 0.77 0.90 77 43
[J2000]
2 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1396.37 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 1396.37 ... 0.23 0.77 0.90 77 43
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1927.53 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 1927.53 ... 0.23 0.77 0.90 77 43
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
2511.89 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 2511.89 ... 0.23 0.77 0.90 77 43
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1023.29 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
70% total B light 6.81E+14 1023.29 ... 0.23 0.77 0.90 77 43
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1288.25 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
80% total B light 6.81E+14 1288.25 ... 0.23 0.77 0.90 77 43
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1717.91 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
90% total B light 6.81E+14 1717.91 ... 0.23 0.77 0.90 77 43
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
683.91 arcsec ... ... 4.33 (a/b) ... ... ... 43.00
[B1950]
50% total B light, major dia. 6.81E+14 683.91 ... 0.23 0.77 0.90 77 43
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
441.57 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 441.57 ... ... ... ... ... ...
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
210.07 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 210.07 ... ... ... ... ... ...
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
20.38 arcsec ... ... 3.56 (a/b) ... ... ... 40.97
[B1950]
B exponential scale length 6.81E+14 20.38 ... 0.28 0.72 0.85 74 41
[J2000]
12 ESO-LV IIIa-F
1989ESOLV.C...0000L
69.35 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 69.35 ... ... ... ... ... ...
13 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
2.30 log(2a) + 1 ... ... 0.72
log(a/b)
0.02 ... ... 43
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 1197.20 56.40 0.19 0.81 0.93 79 43
[J2000]
14 RC3 D_0 (blue)
1991RC3.9.C...0000d
2.38 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 1439.30 ... ... ... ... ... ...
15 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
423.5 (a) arcsec ... ... 0.240 (b/a) ... ... ... 43.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 847.00 ... 0.24 0.76 0.89 76 43
[J2000]
16 K_s (LGA/2MASS "total")
2003AJ....125..525J
591.2 (a) arcsec ... ... 0.240 (b/a) ... ... ... 43.0
[J2000]
Diameter for "total" magnitude 1.38E+14 1182.40 ... 0.24 0.76 0.89 76 43
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1982ESOU..C...0000L
Published Object Name         : ESO 219- G 024                
Frequency Targeted            : ESO-Uppsala "Quick Blue" IIa-O
Major Axis (2a)               : 26.00      arcmin                   2a = 1560.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =   6.00     arcmin              2b = 360.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.23
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.77
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.90
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 77 deg
Position Angle [Equinox]      :  43    deg [B1950]                  43 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          : 130231.         -491212.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1396.37 arcsec 2a = 1396.37 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 6044.89 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 3 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1927.53 arcsec 2a = 1927.53 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 8344.29 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 2511.89 arcsec 2a = 2511.89 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 10873.98 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (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 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1023.29 arcsec 2a = 1023.29 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 4429.83 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (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 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1288.25 arcsec 2a = 1288.25 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 5576.84 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (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 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1717.91 arcsec 2a = 1717.91 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 7436.84 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (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 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 683.91 arcsec 2a = 683.91 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 2960.65 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.33 b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 43.00 deg [B1950] 43 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 : 195.629166 -49.203335 (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 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 441.57 arcsec 2a = 441.57 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 : 195.629166 -49.203335 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 210.07 arcsec 2a = 210.07 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 : 195.629166 -49.203335 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 11 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2190240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 20.38 arcsec 2a = 20.38 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 72.53 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.56 b/a = 0.28 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.72 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.85 Uncertainty : ... ... Cos-1(b/a) : ... 74 deg Position Angle [Equinox] : 40.97 deg [B1950] 41 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 : 195.629166 -49.203335 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2190240 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 69.35 arcsec 2a = 69.35 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 : 195.629166 -49.203335 (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 : 1991RC3.9.C...0000d Published Object Name : ESO 219- G 024 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 2.30 2a = 1197.20 arcsec Uncertainty : 0.02 56.40 arcsec Minor Axis (2b) : ... 2b = 228.67 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.72 b/a = 0.19 Uncertainty : 0.02 0.01 Ellipticity : ... 1 - b/a = 0.81 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.93 Uncertainty : ... ... Cos-1(b/a) : ... 79 deg Position Angle [Equinox] : 43 deg [J2000] 43 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 : 130526.2 -492815. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 14 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 219- G 024 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 2.38 2a = 1439.30 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 : 130526.2 -492815. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 15 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 4945 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 423.5 arcsec 2a = 847.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 203.28 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.240 b/a = 0.24 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 43.0 deg [J2000] 43 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 : 196.363663 -49.467899 (J2000) Qualifiers : From new, raw data NED Comment :
No. 16 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 4945 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 591.2 arcsec 2a = 1182.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 283.78 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.240 b/a = 0.24 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 43.0 deg [J2000] 43 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 : 196.363663 -49.467899 (J2000) Qualifiers : From new, raw data NED Comment :

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