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Date and Time of the Query: 2019-06-16 T06:53:56 PDT
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Diameter data point(s) for object NGC 4525

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
3.00 arcmin 1.60 arcmin ... ... ... ... 53
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 180.00 ... 0.53 0.47 0.56 58 53
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
45.9 (a) arcsec ... ... 0.480 (b/a) ... ... ... 75
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 91.80 ... 0.48 0.52 0.63 61 75
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
102.6 (a) arcsec ... ... 0.480 (b/a) ... ... ... 75
[J2000]
Diameter for "total" magnitude 1.38E+14 205.20 ... 0.48 0.52 0.63 61 75
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
1.00 arcmin 0.60 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 60.00 ... 0.60 0.40 0.47 53 ...
5 POSS1 103a-O
1964MCG2..C...0000V
2.50 arcmin 1.20 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 150.00 ... 0.48 0.52 0.63 61 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.41 log(2a) + 1 ... ... 0.29
log(a/b)
0.03 ... ... 53
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 154.20 11.00 0.51 0.49 0.58 59 53
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.41 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 154.20 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
77.32 (a) arcsec 30.63 arcsec ... ... ... ... 51.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 154.64 ... 0.40 0.60 0.73 67 52
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
16.87 (a) arcsec ... ... ... 0.826 ... ... ... ... 4.77E+14 33.74 1.65 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7498 (a) arcsec ... ... 0.951 (b/a) 0.165 ... ... 62.0
[J2000]
... 4.77E+14 23.50 0.33 0.95 0.05 0.05 18 62
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
10.0032 (a) arcsec ... ... 0.533 (b/a) 0.043 ... ... 56.8
[J2000]
... 4.77E+14 20.01 0.09 0.53 0.47 0.56 58 57
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07714                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 3.00       arcmin                   2a = 180.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.60      arcmin              2b = 96.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.53
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.47
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.56
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 58 deg
Position Angle [Equinox]      :  53    deg [B1950]                  53 deg [J2000]
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          : 123118.         +303400.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12335119+3016390 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 45.9 arcsec 2a = 91.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 44.06 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] : 75 deg [J2000] 75 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 : 188.463287 30.277527 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12335119+3016390 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 102.6 arcsec 2a = 205.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 98.50 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] : 75 deg [J2000] 75 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 : 188.463287 30.277527 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +05-30-020 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.00 arcmin 2a = 60.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.60 arcmin 2b = 36.00 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 : 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 : 123124 +3034 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +05-30-020 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.50 arcmin 2a = 150.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.20 arcmin 2b = 72.00 arcsec Uncertainty : ... ... Axis Ratio : ... 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] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Low 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 : 123124 +3034 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07714 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.41 2a = 154.20 arcsec Uncertainty : 0.03 11.00 arcsec Minor Axis (2b) : ... 2b = 79.10 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.29 b/a = 0.51 Uncertainty : 0.04 0.05 Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 53 deg [J2000] 53 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 : 123351.7 +301642. (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 07714 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.41 2a = 154.20 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 : 123351.7 +301642. (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 J123351.13+301638.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 77.32 arcsec 2a = 154.64 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 30.63 arcsec 2b = 61.26 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.40 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.60 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 51.7 deg [J2000] 52 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 : 188.4630747904 30.2774780105 (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 J123351.13+301638.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 16.87 arcsec 2a = 33.74 arcsec Uncertainty : 0.826 arcsec 1.65 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 : 188.4630747904 30.2774780105 (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 J123351.13+301638.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7498 arcsec 2a = 23.50 arcsec Uncertainty : 0.165 arcsec 0.33 arcsec Minor Axis (2b) : ... 2b = 22.35 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.951 b/a = 0.95 Uncertainty : 0.008 0.01 Ellipticity : ... 1 - b/a = 0.05 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.05 Uncertainty : ... ... Cos-1(b/a) : ... 18 deg Position Angle [Equinox] : 62.0 deg [J2000] 62 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 : 188.4630747904 30.2774780105 (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 J123351.13+301638.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 10.0032 arcsec 2a = 20.01 arcsec Uncertainty : 0.043 arcsec 0.09 arcsec Minor Axis (2b) : ... 2b = 10.66 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.533 b/a = 0.53 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.56 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 56.8 deg [J2000] 57 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 : 188.4630747904 30.2774780105 (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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