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Date and Time of the Query: 2019-03-25 T04:30:35 PDT
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Diameter data point(s) for object IC 4324

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 K_s (2MASS isophotal)
20032MASX.C.......:
18.7 (a) arcsec ... ... 0.480 (b/a) ... ... ... -60
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 37.40 ... 0.48 0.52 0.63 61 120
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
30.9 (a) arcsec ... ... 0.480 (b/a) ... ... ... -60
[J2000]
Diameter for "total" magnitude 1.38E+14 61.90 ... 0.48 0.52 0.63 61 120
[J2000]
3 POSS1 103a-O
1968MCG4..C...0000V
0.40 arcmin 0.20 arcmin ... ... ... ... ... High surface brightness 7.40E+14 24.00 ... 0.50 0.50 0.60 60 ...
4 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
1.00 arcmin 0.80 arcmin ... ... ... ... 128
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 60.00 ... 0.80 0.20 0.22 37 128
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
48.98 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 48.98 ... 0.80 0.20 0.22 37 128
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
62.37 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 62.37 ... 0.80 0.20 0.22 37 128
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
74.99 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 74.99 ... 0.80 0.20 0.22 37 128
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
25.41 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
70% total B light 6.81E+14 25.41 ... 0.80 0.20 0.22 37 128
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
32.73 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
80% total B light 6.81E+14 32.73 ... 0.80 0.20 0.22 37 128
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
45.71 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
90% total B light 6.81E+14 45.71 ... 0.80 0.20 0.22 37 128
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
17.78 arcsec ... ... 1.25 (a/b) ... ... ... 128.00
[B1950]
50% total B light, major dia. 6.81E+14 17.78 ... 0.80 0.20 0.22 37 128
[J2000]
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
17.58 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 17.58 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
5.71 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 5.71 ... ... ... ... ... ...
14 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
7.68 arcsec ... ... 2.05 (a/b) ... ... ... 125.69
[B1950]
B exponential scale length 6.81E+14 7.68 ... 0.49 0.51 0.62 61 126
[J2000]
15 ESO-LV IIIa-F
1989ESOLV.C...0000L
7.09 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 7.09 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J13452731-3013377       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 18.7       arcsec               2a = 37.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 17.95 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.480                         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]      :  -60   deg [J2000]                  120 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          : 206.363800      -30.227222    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13452731-3013377 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 30.9 arcsec 2a = 61.90 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 29.71 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.480 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] : -60 deg [J2000] 120 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 : 206.363800 -30.227222 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -05-32-075 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 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 : "Outer" diameter Coordinates Targeted : 134236 -2958 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 445- G 025 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 1.00 arcmin 2a = 60.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.80 arcmin 2b = 48.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128 deg [B1950] 128 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 : 134236. -295842. (B1950) Qualifiers : From new, raw data NED Comment : Diameters and PA flagged uncertain.
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 48.98 arcsec 2a = 48.98 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 61.22 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 62.37 arcsec 2a = 62.37 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 77.96 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 74.99 arcsec 2a = 74.99 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 93.74 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 25.41 arcsec 2a = 25.41 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 31.76 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 32.73 arcsec 2a = 32.73 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 40.91 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 45.71 arcsec 2a = 45.71 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 57.14 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 17.78 arcsec 2a = 17.78 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 22.23 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.25 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 128.00 deg [B1950] 128 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 : 205.649994 -29.978333 (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 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 17.58 arcsec 2a = 17.58 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 : 205.649994 -29.978333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 5.71 arcsec 2a = 5.71 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 : 205.649994 -29.978333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 14 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4450250 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 7.68 arcsec 2a = 7.68 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 15.74 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.05 b/a = 0.49 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.62 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 125.69 deg [B1950] 126 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 : 205.649994 -29.978333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 15 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4450250 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 7.09 arcsec 2a = 7.09 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 : 205.649994 -29.978333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants

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