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Date and Time of the Query: 2019-07-22 T12:45:14 PDT
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Diameter data point(s) for object NGC 3837

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
0.80 arcmin 0.70 arcmin ... ... ... ... ... About 25.0 B-mag arcsec^-2^ 7.40E+14 48.00 ... 0.88 0.12 0.13 29 ...
2 K_s (2MASS isophotal)
20032MASX.C.......:
23.4 (a) arcsec ... ... 0.860 (b/a) ... ... ... -35
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 46.80 ... 0.86 0.14 0.15 31 145
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
37.0 (a) arcsec ... ... 0.860 (b/a) ... ... ... -35
[J2000]
Diameter for "total" magnitude 1.38E+14 73.90 ... 0.86 0.14 0.15 31 145
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
0.40 arcmin 0.40 arcmin ... ... ... ... ... High surface brightness 7.40E+14 24.00 ... 1.00 0.00 0.00 0 ...
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.81 log(2a) + 1 ... ... 0.02
log(a/b)
0.16 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 38.70 17.30 0.95 0.05 0.05 17 ...
6 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
0.53 log(2a) + 1 ... ... ... 0.03 ... ... ... ... 6.81E+14 20.30 1.50 ... ... ... ... ...
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.80 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 37.90 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
34.87 (a) arcsec 32.11 arcsec ... ... ... ... 164.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 69.73 ... 0.92 0.08 0.08 23 165
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.65 (a) arcsec ... ... ... 0.043 ... ... ... ... 4.77E+14 11.29 0.09 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
2.8692 (a) arcsec ... ... 0.930 (b/a) 0.013 ... ... 166.7
[J2000]
... 4.77E+14 5.74 0.03 0.93 0.07 0.07 22 167
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
2.2540 (a) arcsec ... ... 0.917 (b/a) 0.007 ... ... 167.5
[J2000]
... 4.77E+14 4.51 0.01 0.92 0.08 0.09 24 168
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 06701                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 0.80       arcmin                   2a = 48.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.70      arcmin              2b = 42.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.88
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.12
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.13
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 29 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          : 114118.         +201000.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11435642+1953403 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 23.4 arcsec 2a = 46.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 40.25 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.860 b/a = 0.86 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.14 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.15 Uncertainty : ... ... Cos-1(b/a) : ... 31 deg Position Angle [Equinox] : -35 deg [J2000] 145 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 : 175.985077 19.894556 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11435642+1953403 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 37.0 arcsec 2a = 73.90 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 63.55 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.860 b/a = 0.86 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.14 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.15 Uncertainty : ... ... Cos-1(b/a) : ... 31 deg Position Angle [Equinox] : -35 deg [J2000] 145 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 : 175.985077 19.894556 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-30-068 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.40 arcmin 2b = 24.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 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 : 114112 +2011 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06701 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.81 2a = 38.70 arcsec Uncertainty : 0.16 17.30 arcsec Minor Axis (2b) : ... 2b = 36.96 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.02 b/a = 0.95 Uncertainty : 0.05 0.12 Ellipticity : ... 1 - b/a = 0.05 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.05 Uncertainty : ... ... Cos-1(b/a) : ... 17 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 : 114356.7 +195342. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06701 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 0.53 2a = 20.30 arcsec Uncertainty : 0.03 1.50 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 : 114356.7 +195342. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 7 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06701 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.80 2a = 37.90 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 : 114356.7 +195342. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J114356.42+195340.4 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 34.87 arcsec 2a = 69.73 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 32.11 arcsec 2b = 64.21 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.92 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.08 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.08 Uncertainty : ... ... Cos-1(b/a) : ... 23 deg Position Angle [Equinox] : 164.7 deg [J2000] 165 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 : 175.9851085809 19.8945786680 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J114356.42+195340.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.65 arcsec 2a = 11.29 arcsec Uncertainty : 0.043 arcsec 0.09 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 : 175.9851085809 19.8945786680 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J114356.42+195340.4 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 2.8692 arcsec 2a = 5.74 arcsec Uncertainty : 0.013 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 5.34 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.930 b/a = 0.93 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 166.7 deg [J2000] 167 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 : 175.9851085809 19.8945786680 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J114356.42+195340.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.2540 arcsec 2a = 4.51 arcsec Uncertainty : 0.007 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 4.13 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.917 b/a = 0.92 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.08 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.09 Uncertainty : ... ... Cos-1(b/a) : ... 24 deg Position Angle [Equinox] : 167.5 deg [J2000] 168 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 : 175.9851085809 19.8945786680 (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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