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Date and Time of the Query: 2019-03-26 T06:59:33 PDT
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Diameter data point(s) for object NGC 1033

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.......:
20.1 (a) arcsec ... ... 0.880 (b/a) ... ... ... 30
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 40.20 ... 0.88 0.12 0.13 28 30
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
48.3 (a) arcsec ... ... 0.880 (b/a) ... ... ... 30
[J2000]
Diameter for "total" magnitude 1.38E+14 96.60 ... 0.88 0.12 0.13 28 30
[J2000]
3 POSS1 103a-O
1968MCG4..C...0000V
0.30 arcmin 0.20 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 18.00 ... 0.67 0.33 0.38 48 ...
4 POSS1 103a-O
1968MCG4..C...0000V
1.20 arcmin 1.10 arcmin ... ... ... ... ... Moderate surface brightness 7.40E+14 72.00 ... 0.92 0.08 0.09 24 ...
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.12 log(2a) + 1 ... ... 0.06
log(a/b)
0.06 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 79.10 11.70 0.87 0.13 0.14 29 ...
6 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.12 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 79.10 ... ... ... ... ... ...
7 r (SDSS Isophotal)
2004SDSS2.C...0000:
35.46 (a) arcsec 30.10 arcsec ... ... ... ... 4.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 70.91 ... 0.85 0.15 0.16 32 4
[J2000]
8 r (SDSS Petrosian)
2004SDSS2.C...0000:
11.67 (a) arcsec ... ... ... 0.11 ... ... ... ... 4.77E+14 23.34 0.21 ... ... ... ... ...
9 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
7.05 (a) arcsec ... ... 0.896 (b/a) 0.05 ... ... 8.9
[J2000]
... 4.77E+14 14.10 0.11 0.90 0.10 0.11 26 9
[J2000]
10 r (SDSS Exponential)
2004SDSS2.C...0000:
4.36 (a) arcsec ... ... 0.877 (b/a) 0.02 ... ... 9.1
[J2000]
... 4.77E+14 8.71 0.04 0.88 0.12 0.13 29 9
[J2000]
11 r (SDSS Isophotal)
2007SDSS6.C...0000:
35.46 (a) arcsec 30.10 arcsec ... ... ... ... 4.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 70.91 ... 0.85 0.15 0.16 32 4
[J2000]
12 r (SDSS Petrosian)
2007SDSS6.C...0000:
11.67 (a) arcsec ... ... ... 0.106 ... ... ... ... 4.77E+14 23.34 0.21 ... ... ... ... ...
13 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
7.0521 (a) arcsec ... ... 0.896 (b/a) 0.054 ... ... 8.9
[J2000]
... 4.77E+14 14.10 0.11 0.90 0.10 0.11 26 9
[J2000]
14 r (SDSS Exponential)
2007SDSS6.C...0000:
4.3552 (a) arcsec ... ... 0.877 (b/a) 0.019 ... ... 9.1
[J2000]
... 4.77E+14 8.71 0.04 0.88 0.12 0.13 29 9
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J02401607-0846371       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 20.1       arcsec               2a = 40.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 35.38 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.880                         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)                    : ...                                 28 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          : 40.067032       -8.776975    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J02401607-0846371 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 48.3 arcsec 2a = 96.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 85.01 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.880 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) : ... 28 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 : 40.067032 -8.776975 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -02-07-053 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.30 arcmin 2a = 18.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 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 : 023742 -0900 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -02-07-053 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.20 arcmin 2a = 72.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.10 arcmin 2b = 66.00 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] = 0.09 Uncertainty : ... ... Cos-1(b/a) : ... 24 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Moderate 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 : 023742 -0900 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG -02-07-053 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.12 2a = 79.10 arcsec Uncertainty : 0.06 11.70 arcsec Minor Axis (2b) : ... 2b = 68.90 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.06 b/a = 0.87 Uncertainty : 0.05 0.11 Ellipticity : ... 1 - b/a = 0.13 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.14 Uncertainty : ... ... Cos-1(b/a) : ... 29 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 : 024016.1 -084638. (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 -02-07-053 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.12 2a = 79.10 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 : 024016.1 -084638. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 7 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J024016.12-084637.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 35.46 arcsec 2a = 70.91 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 30.10 arcsec 2b = 60.19 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.85 Uncertainty : ... ... 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] : 4.3 deg [J2000] 4 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 : 40.0671692 -8.7769556 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J024016.12-084637.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 11.67 arcsec 2a = 23.34 arcsec Uncertainty : 0.11 arcsec 0.21 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 : 40.0671692 -8.7769556 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J024016.12-084637.0 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 7.05 arcsec 2a = 14.10 arcsec Uncertainty : 0.05 arcsec 0.11 arcsec Minor Axis (2b) : ... 2b = 12.63 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.896 b/a = 0.90 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.10 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.11 Uncertainty : ... ... Cos-1(b/a) : ... 26 deg Position Angle [Equinox] : 8.9 deg [J2000] 9 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 : 40.0671692 -8.7769556 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J024016.12-084637.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 4.36 arcsec 2a = 8.71 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 7.64 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.877 b/a = 0.88 Uncertainty : 0.005 0.01 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] : 9.1 deg [J2000] 9 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 : 40.0671692 -8.7769556 (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 J024016.11-084637.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 35.46 arcsec 2a = 70.91 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 30.10 arcsec 2b = 60.19 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.85 Uncertainty : ... ... 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] : 4.3 deg [J2000] 4 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 : 40.0671659048 -8.7769556092 (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 J024016.11-084637.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 11.67 arcsec 2a = 23.34 arcsec Uncertainty : 0.106 arcsec 0.21 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 : 40.0671659048 -8.7769556092 (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 J024016.11-084637.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 7.0521 arcsec 2a = 14.10 arcsec Uncertainty : 0.054 arcsec 0.11 arcsec Minor Axis (2b) : ... 2b = 12.64 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.896 b/a = 0.90 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.10 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.11 Uncertainty : ... ... Cos-1(b/a) : ... 26 deg Position Angle [Equinox] : 8.9 deg [J2000] 9 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 : 40.0671659048 -8.7769556092 (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 J024016.11-084637.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 4.3552 arcsec 2a = 8.71 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 7.64 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.877 b/a = 0.88 Uncertainty : 0.005 0.01 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] : 9.1 deg [J2000] 9 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 : 40.0671659048 -8.7769556092 (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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