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Date and Time of the Query: 2019-06-15 T18:31:52 PDT
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Diameter data point(s) for object NGC 3630

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
1.90 arcmin 0.80 arcmin ... ... ... ... 37
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 114.00 ... 0.42 0.58 0.70 65 37
[J2000]
2 POSS1 103a-O
1963MCG3..C...0000V
0.80 arcmin 0.30 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 48.00 ... 0.38 0.62 0.75 68 ...
3 POSS1 103a-O
1963MCG3..C...0000V
1.60 arcmin 0.50 arcmin ... ... ... ... ... Very low surface brightness 7.40E+14 96.00 ... 0.31 0.69 0.82 72 ...
4 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.66 log(2a) + 1 ... ... 0.19
log(a/b)
0.03 ... ... 37
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 274.30 19.60 0.65 0.35 0.41 50 37
[J2000]
5 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.64 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 261.90 ... ... ... ... ... ...
6 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
42.2 (a) arcsec ... ... 0.450 (b/a) ... ... ... 37.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 84.40 ... 0.45 0.55 0.66 63 37
[J2000]
7 K_s (LGA/2MASS "total")
2003AJ....125..525J
85.2 (a) arcsec ... ... 0.450 (b/a) ... ... ... 37.0
[J2000]
Diameter for "total" magnitude 1.38E+14 170.40 ... 0.45 0.55 0.66 63 37
[J2000]
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
44.06 (a) arcsec 23.59 arcsec ... ... ... ... 33.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 88.13 ... 0.54 0.46 0.55 58 34
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.46 (a) arcsec ... ... ... 1.573 ... ... ... ... 4.77E+14 10.91 3.15 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
3.5329 (a) arcsec ... ... 0.413 (b/a) 0.017 ... ... 33.8
[J2000]
... 4.77E+14 7.07 0.04 0.41 0.59 0.71 66 34
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
2.3252 (a) arcsec ... ... 0.586 (b/a) 0.008 ... ... 36.5
[J2000]
... 4.77E+14 4.65 0.02 0.59 0.41 0.49 54 37
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 06349                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.90       arcmin                   2a = 114.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.80      arcmin              2b = 48.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.42
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.58
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.70
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 65 deg
Position Angle [Equinox]      :  37    deg [B1950]                  37 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          : 111742.         +031400.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-29-031 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.80 arcmin 2a = 48.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.38 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.75 Uncertainty : ... ... Cos-1(b/a) : ... 68 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 : 111742 +0314 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-29-031 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.60 arcmin 2a = 96.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.50 arcmin 2b = 30.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.31 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.69 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.82 Uncertainty : ... ... Cos-1(b/a) : ... 72 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very 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 : 111742 +0314 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06349 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.66 2a = 274.30 arcsec Uncertainty : 0.03 19.60 arcsec Minor Axis (2b) : ... 2b = 177.20 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.19 b/a = 0.65 Uncertainty : 0.02 0.03 Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 37 deg [J2000] 37 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 : 112016.5 +025757. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06349 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.64 2a = 261.90 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 : 112016.5 +025757. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 6 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 3630 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 42.2 arcsec 2a = 84.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 37.98 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.450 b/a = 0.45 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.55 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.66 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : 37.0 deg [J2000] 37 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 : 170.070786 2.964170 (J2000) Qualifiers : From new, raw data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 3630 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 85.2 arcsec 2a = 170.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 76.68 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.450 b/a = 0.45 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.55 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.66 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : 37.0 deg [J2000] 37 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 : 170.070786 2.964170 (J2000) Qualifiers : From new, raw data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J112016.98+025751.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 44.06 arcsec 2a = 88.13 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.59 arcsec 2b = 47.18 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 33.7 deg [J2000] 34 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 : 170.0707517095 2.9643854171 (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 J112016.98+025751.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.46 arcsec 2a = 10.91 arcsec Uncertainty : 1.573 arcsec 3.15 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 : 170.0707517095 2.9643854171 (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 J112016.98+025751.7 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 3.5329 arcsec 2a = 7.07 arcsec Uncertainty : 0.017 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 2.92 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.413 b/a = 0.41 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.59 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.71 Uncertainty : ... ... Cos-1(b/a) : ... 66 deg Position Angle [Equinox] : 33.8 deg [J2000] 34 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 : 170.0707517095 2.9643854171 (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 J112016.98+025751.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.3252 arcsec 2a = 4.65 arcsec Uncertainty : 0.008 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 2.72 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.586 b/a = 0.59 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.41 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.49 Uncertainty : ... ... Cos-1(b/a) : ... 54 deg Position Angle [Equinox] : 36.5 deg [J2000] 37 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 : 170.0707517095 2.9643854171 (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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