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Date and Time of the Query: 2019-04-18 T14:48:11 PDT
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Diameter data point(s) for object NGC 4135

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.......:
18.5 (a) arcsec ... ... 0.620 (b/a) ... ... ... -85
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 37.00 ... 0.62 0.38 0.44 52 95
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
30.5 (a) arcsec ... ... 0.620 (b/a) ... ... ... -85
[J2000]
Diameter for "total" magnitude 1.38E+14 61.10 ... 0.62 0.38 0.44 52 95
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.20 arcmin 0.20 arcmin ... ... ... ... ... High surface brightness 7.40E+14 12.00 ... 1.00 0.00 0.00 0 ...
4 POSS1 103a-O
1964MCG2..C...0000V
0.60 arcmin 0.45 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 36.00 ... 0.75 0.25 0.28 41 ...
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.94 log(2a) + 1 ... ... 0.13
log(a/b)
0.09 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 52.30 12.00 0.74 0.26 0.29 42 ...
6 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.94 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 52.30 ... ... ... ... ... ...
7 r (SDSS Isophotal)
2005SDSS4.C...0000:
31.65 (a) arcsec 20.03 arcsec ... ... ... ... 102.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 63.31 ... 0.63 0.37 0.43 51 103
[J2000]
8 r (SDSS Petrosian)
2005SDSS4.C...0000:
6.33 (a) arcsec ... ... ... 0.09 ... ... ... ... 4.77E+14 12.66 0.17 ... ... ... ... ...
9 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
5.24 (a) arcsec ... ... 0.748 (b/a) 0.03 ... ... 105.6
[J2000]
... 4.77E+14 10.48 0.06 0.75 0.25 0.28 42 106
[J2000]
10 r (SDSS Exponential)
2005SDSS4.C...0000:
3.39 (a) arcsec ... ... 0.723 (b/a) 0.01 ... ... 104.0
[J2000]
... 4.77E+14 6.78 0.02 0.72 0.28 0.31 44 104
[J2000]
11 r (SDSS Isophotal)
2007SDSS6.C...0000:
31.65 (a) arcsec 20.03 arcsec ... ... ... ... 102.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 63.31 ... 0.63 0.37 0.43 51 103
[J2000]
12 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.33 (a) arcsec ... ... ... 0.086 ... ... ... ... 4.77E+14 12.66 0.17 ... ... ... ... ...
13 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.2417 (a) arcsec ... ... 0.748 (b/a) 0.030 ... ... 105.6
[J2000]
... 4.77E+14 10.48 0.06 0.75 0.25 0.28 42 106
[J2000]
14 r (SDSS Exponential)
2007SDSS6.C...0000:
3.3885 (a) arcsec ... ... 0.723 (b/a) 0.010 ... ... 104.0
[J2000]
... 4.77E+14 6.78 0.02 0.72 0.28 0.31 44 104
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12090882+4400112       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 18.5       arcsec               2a = 37.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 22.94 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.620                         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)                    : ...                                 52 deg
Position Angle [Equinox]      :  -85   deg [J2000]                  95 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          : 182.286728      44.003128    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12090882+4400112 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 30.5 arcsec 2a = 61.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 37.88 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.620 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) : ... 52 deg Position Angle [Equinox] : -85 deg [J2000] 95 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 : 182.286728 44.003128 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +07-25-032 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.20 arcmin 2a = 12.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 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 : "Inner" diameter Coordinates Targeted : 120642 +4417 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +07-25-032 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.60 arcmin 2a = 36.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.45 arcmin 2b = 27.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.75 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.25 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.28 Uncertainty : ... ... Cos-1(b/a) : ... 41 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 : 120642 +4417 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG +07-25-032 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.94 2a = 52.30 arcsec Uncertainty : 0.09 12.00 arcsec Minor Axis (2b) : ... 2b = 38.75 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.13 b/a = 0.74 Uncertainty : 0.06 0.11 Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 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 : 120909.6 +440014. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG +07-25-032 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.94 2a = 52.30 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 : 120909.6 +440014. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 7 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120908.81+440011.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 31.65 arcsec 2a = 63.31 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 20.03 arcsec 2b = 40.07 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.63 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 102.7 deg [J2000] 103 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 : 182.2866974 44.0031967 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120908.81+440011.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.33 arcsec 2a = 12.66 arcsec Uncertainty : 0.09 arcsec 0.17 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 : 182.2866974 44.0031967 (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 J120908.81+440011.5 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 5.24 arcsec 2a = 10.48 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 7.84 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.748 b/a = 0.75 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.25 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.28 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 105.6 deg [J2000] 106 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 : 182.2866974 44.0031967 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 10 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120908.81+440011.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.39 arcsec 2a = 6.78 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.90 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.723 b/a = 0.72 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 104.0 deg [J2000] 104 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 : 182.2866974 44.0031967 (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 J120908.80+440011.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 31.65 arcsec 2a = 63.31 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 20.03 arcsec 2b = 40.07 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.63 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 102.7 deg [J2000] 103 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 : 182.2867054053 44.0031953260 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J120908.80+440011.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.33 arcsec 2a = 12.66 arcsec Uncertainty : 0.086 arcsec 0.17 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 : 182.2867054053 44.0031953260 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 13 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J120908.80+440011.5 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.2417 arcsec 2a = 10.48 arcsec Uncertainty : 0.030 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 7.84 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.748 b/a = 0.75 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.25 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.28 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 105.6 deg [J2000] 106 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 : 182.2867054053 44.0031953260 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 14 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J120908.80+440011.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.3885 arcsec 2a = 6.78 arcsec Uncertainty : 0.010 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.90 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.723 b/a = 0.72 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 104.0 deg [J2000] 104 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 : 182.2867054053 44.0031953260 (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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