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Date and Time of the Query: 2019-03-19 T14:21:32 PDT
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Diameter data point(s) for object IC 4149

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
1964MCG2..C...0000V
0.40 arcmin 0.40 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 24.00 ... 1.00 0.00 0.00 0 ...
2 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.76 log(2a) + 1 ... ... 0.07
log(a/b)
0.08 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 34.50 7.00 0.85 0.15 0.16 32 ...
3 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.77 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 35.30 ... ... ... ... ... ...
4 r (SDSS Isophotal)
2007SDSS6.C...0000:
22.81 (a) arcsec 15.48 arcsec ... ... ... ... 62.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 45.62 ... 0.68 0.32 0.37 47 63
[J2000]
5 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.88 (a) arcsec ... ... ... 0.361 ... ... ... ... 4.77E+14 11.77 0.72 ... ... ... ... ...
6 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
3.5746 (a) arcsec ... ... 0.552 (b/a) 0.037 ... ... 91.8
[J2000]
... 4.77E+14 7.15 0.07 0.55 0.45 0.53 56 92
[J2000]
7 r (SDSS Exponential)
2007SDSS6.C...0000:
3.0688 (a) arcsec ... ... 0.439 (b/a) 0.019 ... ... 91.0
[J2000]
... 4.77E+14 6.14 0.04 0.44 0.56 0.68 64 91
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1964MCG2..C...0000V
Published Object Name         : MCG +04-31-004                
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      : 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          : 130136          +2232    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG +04-31-004 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.76 2a = 34.50 arcsec Uncertainty : 0.08 7.00 arcsec Minor Axis (2b) : ... 2b = 29.36 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.07 b/a = 0.85 Uncertainty : 0.06 0.13 Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 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 : 130410.9 +221723. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG +04-31-004 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.77 2a = 35.30 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 : 130410.9 +221723. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130410.82+221722.8 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 22.81 arcsec 2a = 45.62 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 15.48 arcsec 2b = 30.96 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.68 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.32 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.37 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : 62.7 deg [J2000] 63 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 : 196.0450983987 22.2896691803 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130410.82+221722.8 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.88 arcsec 2a = 11.77 arcsec Uncertainty : 0.361 arcsec 0.72 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 : 196.0450983987 22.2896691803 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130410.82+221722.8 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 3.5746 arcsec 2a = 7.15 arcsec Uncertainty : 0.037 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 3.95 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.552 b/a = 0.55 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.53 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 91.8 deg [J2000] 92 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 : 196.0450983987 22.2896691803 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130410.82+221722.8 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.0688 arcsec 2a = 6.14 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 2.69 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.439 b/a = 0.44 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.56 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.68 Uncertainty : ... ... Cos-1(b/a) : ... 64 deg Position Angle [Equinox] : 91.0 deg [J2000] 91 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 : 196.0450983987 22.2896691803 (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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