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Date and Time of the Query: 2019-05-25 T04:01:26 PDT
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Diameter data point(s) for object NGC 3884

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 1.40 arcmin ... ... ... ... 10
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 114.00 ... 0.74 0.26 0.30 43 10
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
39.3 (a) arcsec ... ... 0.800 (b/a) ... ... ... -10
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 78.60 ... 0.80 0.20 0.22 37 170
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
64.7 (a) arcsec ... ... 0.800 (b/a) ... ... ... -10
[J2000]
Diameter for "total" magnitude 1.38E+14 129.50 ... 0.80 0.20 0.22 37 170
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
0.35 arcmin 0.25 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 21.00 ... 0.71 0.29 0.32 44 ...
5 POSS1 103a-O
1964MCG2..C...0000V
2.50 arcmin 1.50 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 150.00 ... 0.60 0.40 0.47 53 ...
6 B (Johnson)
1994A&AS..106..451D
58.8 (a) arcsec ... ... ... 2.4 ... ... ... 25 B-mag arcsec^-2^ 6.81E+14 117.60 4.80 ... ... ... ... ...
7 R (Kron-Cousins)
1994A&AS..106..451D
55.6 (a) arcsec ... ... 0.76 (b/a) 0.4 ... ... 21.9
[J2000]
23.5 R-mag arcsec^-2^ 4.68E+14 111.20 0.80 0.76 0.24 0.27 41 22
[J2000]
8 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.32 log(2a) + 1 ... ... 0.19
log(a/b)
0.03 ... ... 10
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 125.40 9.00 0.65 0.35 0.41 50 10
[J2000]
9 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
0.90 log(2a) + 1 ... ... ... 0.02 ... ... ... ... 6.81E+14 47.70 2.20 ... ... ... ... ...
10 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.31 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 122.50 ... ... ... ... ... ...
11 r (SDSS Isophotal)
2007SDSS6.C...0000:
54.89 (a) arcsec 36.88 arcsec ... ... ... ... 9.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 109.78 ... 0.67 0.33 0.38 48 10
[J2000]
12 r (SDSS Petrosian)
2007SDSS6.C...0000:
13.76 (a) arcsec ... ... ... 0.186 ... ... ... ... 4.77E+14 27.51 0.37 ... ... ... ... ...
13 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.7300 (a) arcsec ... ... 0.781 (b/a) 0.032 ... ... 10.5
[J2000]
... 4.77E+14 11.46 0.07 0.78 0.22 0.24 39 11
[J2000]
14 r (SDSS Exponential)
2007SDSS6.C...0000:
5.7305 (a) arcsec ... ... 0.763 (b/a) 0.023 ... ... 10.9
[J2000]
... 4.77E+14 11.46 0.04 0.76 0.24 0.26 40 11
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 06746                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.90       arcmin                   2a = 114.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.40      arcmin              2b = 84.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.74
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.26
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.30
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 43 deg
Position Angle [Equinox]      :  10    deg [B1950]                  10 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          : 114336.         +204100.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11461218+2023297 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 39.3 arcsec 2a = 78.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 62.88 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.800 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : -10 deg [J2000] 170 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 : 176.550781 20.391628 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11461218+2023297 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 64.7 arcsec 2a = 129.50 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 103.60 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.800 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : -10 deg [J2000] 170 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 : 176.550781 20.391628 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +04-28-051 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.35 arcmin 2a = 21.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.25 arcmin 2b = 15.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.71 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.29 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 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 : 114336 +2040 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +04-28-051 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.50 arcmin 2a = 150.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.50 arcmin 2b = 90.00 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 : Intermed. 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 : 114336 +2040 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1994A&AS..106..451D Published Object Name : UGC 06746 Frequency Targeted : B (Johnson) Major Axis (2a) : a = 58.8 arcsec 2a = 117.60 arcsec Uncertainty : 2.4 arcsec 4.80 arcsec Minor Axis (2b) : ... 2b = -117482.40 arcsec Uncertainty : ... ... Axis Ratio : b/a = b/a = -999.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 1000.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 1.00 Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : rms noise Diameter Reference Level : 25 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Calibrated CCD image Fitting Technique : Profile fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 1994A&AS..106..451D Published Object Name : UGC 06746 Frequency Targeted : R (Kron-Cousins) Major Axis (2a) : a = 55.6 arcsec 2a = 111.20 arcsec Uncertainty : 0.4 arcsec 0.80 arcsec Minor Axis (2b) : ... 2b = 84.51 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.76 b/a = 0.76 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.27 Uncertainty : ... ... Cos-1(b/a) : ... 41 deg Position Angle [Equinox] : 21.9 deg [J2000] 22 deg [J2000] Uncertainty : 10 10 Significance : rms noise Diameter Reference Level : 23.5 R-mag arcsec^-2^ Frequency : 6400 A 4.68E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Calibrated CCD image Fitting Technique : Profile fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06746 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.32 2a = 125.40 arcsec Uncertainty : 0.03 9.00 arcsec Minor Axis (2b) : ... 2b = 81.01 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.19 b/a = 0.65 Uncertainty : 0.06 0.10 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] : 10 deg [J2000] 10 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 : 114612.4 +202331. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06746 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 0.90 2a = 47.70 arcsec Uncertainty : 0.02 2.20 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Mean error Diameter Reference Level : ... 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 : 114612.4 +202331. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 10 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06746 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.31 2a = 122.50 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 : 114612.4 +202331. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 11 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J114612.18+202329.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 54.89 arcsec 2a = 109.78 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 36.88 arcsec 2b = 73.76 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] : 9.8 deg [J2000] 10 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 : 176.5507667984 20.3916471307 (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 J114612.18+202329.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 13.76 arcsec 2a = 27.51 arcsec Uncertainty : 0.186 arcsec 0.37 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 : 176.5507667984 20.3916471307 (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 J114612.18+202329.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.7300 arcsec 2a = 11.46 arcsec Uncertainty : 0.032 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 8.95 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.781 b/a = 0.78 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.22 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.24 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 10.5 deg [J2000] 11 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 : 176.5507667984 20.3916471307 (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 J114612.18+202329.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 5.7305 arcsec 2a = 11.46 arcsec Uncertainty : 0.023 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 8.74 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.763 b/a = 0.76 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 10.9 deg [J2000] 11 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 : 176.5507667984 20.3916471307 (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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