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Date and Time of the Query: 2019-06-26 T08:10:04 PDT
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Diameter data point(s) for object NGC 1144

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
1.40 arcmin 1.20 arcmin ... ... ... ... ... About 25.0 B-mag arcsec^-2^ 7.40E+14 84.00 ... 0.86 0.14 0.15 31 ...
2 POSS1 103a-O
1963MCG3..C...0000V
0.40 arcmin 0.30 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 24.00 ... 0.75 0.25 0.28 41 ...
3 POSS1 103a-O
1963MCG3..C...0000V
0.70 arcmin 0.40 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 42.00 ... 0.57 0.43 0.51 55 ...
4 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.04 log(2a) + 1 ... ... 0.21
log(a/b)
0.08 ... ... 130
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 65.80 13.30 0.62 0.38 0.45 52 130
[J2000]
5 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
0.75 log(2a) + 1 ... ... ... 0.02 ... ... ... ... 6.81E+14 33.70 1.60 ... ... ... ... ...
6 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.06 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 68.90 ... ... ... ... ... ...
7 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
50.9 (a) arcsec ... ... 0.440 (b/a) ... ... ... -60.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 101.80 ... 0.44 0.56 0.68 64 120
[J2000]
8 K_s (LGA/2MASS "total")
2003AJ....125..525J
104.5 (a) arcsec ... ... 0.440 (b/a) ... ... ... -60.0
[J2000]
Diameter for "total" magnitude 1.38E+14 209.00 ... 0.44 0.56 0.68 64 120
[J2000]
9 r (SDSS Isophotal)
2007SDSS6.C...0000:
49.10 (a) arcsec 23.83 arcsec ... ... ... ... 114.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 98.19 ... 0.48 0.52 0.62 61 115
[J2000]
10 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.62 (a) arcsec ... ... ... 0.115 ... ... ... ... 4.77E+14 11.23 0.23 ... ... ... ... ...
11 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.3497 (a) arcsec ... ... 0.700 (b/a) 0.026 ... ... 118.8
[J2000]
... 4.77E+14 8.70 0.05 0.70 0.30 0.34 46 119
[J2000]
12 r (SDSS Exponential)
2007SDSS6.C...0000:
2.8630 (a) arcsec ... ... 0.733 (b/a) 0.009 ... ... 115.8
[J2000]
... 4.77E+14 5.73 0.02 0.73 0.27 0.30 43 116
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 02389                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.40       arcmin                   2a = 84.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.20      arcmin              2b = 72.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.86
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.14
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.15
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 31 deg
Position Angle [Equinox]      : ...                                 ...
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          : 025236.         -002300.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters include more than one galaxy. 

No. 2 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +00-08-048 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 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 : 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 : 025248 -0023 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +00-08-048 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.70 arcmin 2a = 42.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.40 arcmin 2b = 24.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.57 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.51 Uncertainty : ... ... Cos-1(b/a) : ... 55 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 : 025248 -0023 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 02389 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.04 2a = 65.80 arcsec Uncertainty : 0.08 13.30 arcsec Minor Axis (2b) : ... 2b = 40.60 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.21 b/a = 0.62 Uncertainty : 0.06 0.09 Ellipticity : ... 1 - b/a = 0.38 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.45 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : 130 deg [J2000] 130 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 : 025512.1 -001100. (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 02389 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 0.75 2a = 33.70 arcsec Uncertainty : 0.02 1.60 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 : 025512.1 -001100. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 02389 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.06 2a = 68.90 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 : 025512.1 -001100. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 7 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 1144 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 50.9 arcsec 2a = 101.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 44.79 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.440 b/a = 0.44 Uncertainty : ... ... 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] : -60.0 deg [J2000] 120 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 : 43.801109 -0.183840 (J2000) Qualifiers : From new, raw data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 1144 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 104.5 arcsec 2a = 209.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 91.96 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.440 b/a = 0.44 Uncertainty : ... ... 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] : -60.0 deg [J2000] 120 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 : 43.801109 -0.183840 (J2000) Qualifiers : From new, raw data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J025512.22-001100.8 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 49.10 arcsec 2a = 98.19 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.83 arcsec 2b = 47.66 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.62 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 114.6 deg [J2000] 115 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 : 43.8009372455 -0.1835562514 (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 J025512.22-001100.8 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.62 arcsec 2a = 11.23 arcsec Uncertainty : 0.115 arcsec 0.23 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 : 43.8009372455 -0.1835562514 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 11 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J025512.22-001100.8 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.3497 arcsec 2a = 8.70 arcsec Uncertainty : 0.026 arcsec 0.05 arcsec Minor Axis (2b) : ... 2b = 6.09 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.700 b/a = 0.70 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 118.8 deg [J2000] 119 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 : 43.8009372455 -0.1835562514 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J025512.22-001100.8 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.8630 arcsec 2a = 5.73 arcsec Uncertainty : 0.009 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.20 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.733 b/a = 0.73 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.30 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 115.8 deg [J2000] 116 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 : 43.8009372455 -0.1835562514 (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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