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Date and Time of the Query: 2019-08-25 T13:56:39 PDT
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Diameter data point(s) for object NGC 4037

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
1973UGC...C...0000N
2.80 arcmin 2.50 arcmin ... ... ... ... ... About 25.0 B-mag arcsec^-2^ 7.40E+14 168.00 ... 0.89 0.11 0.11 27 ...
2 K_s (2MASS isophotal)
20032MASX.C.......:
37.7 (a) arcsec ... ... 0.720 (b/a) ... ... ... 30
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 75.40 ... 0.72 0.28 0.32 44 30
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
57.9 (a) arcsec ... ... 0.720 (b/a) ... ... ... 30
[J2000]
Diameter for "total" magnitude 1.38E+14 115.80 ... 0.72 0.28 0.32 44 30
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
0.40 arcmin 0.25 arcmin ... ... ... ... ... High surface brightness 7.40E+14 24.00 ... 0.62 0.38 0.44 51 ...
5 POSS1 103a-O
1963MCG3..C...0000V
2.20 arcmin 2.00 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 132.00 ... 0.91 0.09 0.10 25 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.40 log(2a) + 1 ... ... 0.09
log(a/b)
0.03 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 150.70 10.80 0.81 0.19 0.20 36 ...
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.40 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 150.70 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2005SDSS4.C...0000:
60.69 (a) arcsec 41.97 arcsec ... ... ... ... 161.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 121.37 ... 0.69 0.31 0.35 46 161
[J2000]
9 r (SDSS Petrosian)
2005SDSS4.C...0000:
18.69 (a) arcsec ... ... ... 0.75 ... ... ... ... 4.77E+14 37.37 1.49 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
11.75 (a) arcsec ... ... 0.802 (b/a) 0.14 ... ... 7.5
[J2000]
... 4.77E+14 23.50 0.29 0.80 0.20 0.22 37 8
[J2000]
11 r (SDSS Exponential)
2005SDSS4.C...0000:
8.96 (a) arcsec ... ... 0.559 (b/a) 0.05 ... ... 6.7
[J2000]
... 4.77E+14 17.93 0.09 0.56 0.44 0.52 56 7
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07002                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.80       arcmin                   2a = 168.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  2.50      arcmin              2b = 150.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.89
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.11
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.11
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 27 deg
Position Angle [Equinox]      : ...                                 ...
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : About 25.0 B-mag arcsec^-2^   
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          : 115848.         +134000.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Minor diameter flagged uncertain.       

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12012368+1324041 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 37.7 arcsec 2a = 75.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 54.29 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.720 b/a = 0.72 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 30 deg [J2000] 30 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 : 180.348648 13.401097 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12012368+1324041 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 57.9 arcsec 2a = 115.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 83.38 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.720 b/a = 0.72 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 30 deg [J2000] 30 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 : 180.348648 13.401097 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-31-015 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.25 arcmin 2b = 15.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.62 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.38 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.44 Uncertainty : ... ... Cos-1(b/a) : ... 51 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 : "Inner" diameter Coordinates Targeted : 115848 +1340 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-31-015 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.20 arcmin 2a = 132.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.00 arcmin 2b = 120.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.91 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.09 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.10 Uncertainty : ... ... Cos-1(b/a) : ... 25 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 : 115848 +1340 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07002 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.40 2a = 150.70 arcsec Uncertainty : 0.03 10.80 arcsec Minor Axis (2b) : ... 2b = 122.52 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.09 b/a = 0.81 Uncertainty : 0.04 0.08 Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.20 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : ... ... 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 : 120123.7 +132406. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07002 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.40 2a = 150.70 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 : 120123.7 +132406. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120123.67+132403.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 60.69 arcsec 2a = 121.37 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 41.97 arcsec 2b = 83.93 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.69 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.31 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.35 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 161.2 deg [J2000] 161 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 mag arcsec^-2^ Frequency : 6290 A 4.77E+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 : 180.3486176 13.4010162 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120123.67+132403.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 18.69 arcsec 2a = 37.37 arcsec Uncertainty : 0.75 arcsec 1.49 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Profile fitting to image Measured Quantity : See comments Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 180.3486176 13.4010162 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120123.67+132403.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.14 arcsec 0.29 arcsec Minor Axis (2b) : ... 2b = 18.85 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.802 b/a = 0.80 Uncertainty : 0.005 0.01 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] : 7.5 deg [J2000] 8 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+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 : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 180.3486176 13.4010162 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 11 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120123.67+132403.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 8.96 arcsec 2a = 17.93 arcsec Uncertainty : 0.05 arcsec 0.09 arcsec Minor Axis (2b) : ... 2b = 10.02 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.559 b/a = 0.56 Uncertainty : 0.003 0.00 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] : 6.7 deg [J2000] 7 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+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 : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 180.3486176 13.4010162 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

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