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Date and Time of the Query: 2019-02-23 T13:28:29 PST
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Diameter data point(s) for object NGC 7456

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-E
1974MCG5..C...0000V
2.5 arcmin 1.1 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 150.00 ... 0.44 0.56 0.68 64 ...
2 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
8.00 arcmin 2.60 arcmin ... ... ... ... 23
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 480.00 ... 0.33 0.68 0.81 71 23
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
305.49 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 305.49 ... 0.33 0.68 0.81 71 23
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
375.84 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 375.84 ... 0.33 0.68 0.81 71 23
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
426.58 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 426.58 ... 0.33 0.68 0.81 71 23
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
206.54 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
70% total B light 6.81E+14 206.54 ... 0.33 0.68 0.81 71 23
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
242.66 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
80% total B light 6.81E+14 242.66 ... 0.33 0.68 0.81 71 23
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
302.00 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
90% total B light 6.81E+14 302.00 ... 0.33 0.68 0.81 71 23
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
151.36 arcsec ... ... 3.08 (a/b) ... ... ... 23.00
[B1950]
50% total B light, major dia. 6.81E+14 151.36 ... 0.33 0.68 0.81 71 23
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
94.41 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 94.41 ... ... ... ... ... ...
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
54.77 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 54.77 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
67.19 arcsec ... ... 2.86 (a/b) ... ... ... 21.31
[B1950]
B exponential scale length 6.81E+14 67.19 ... 0.35 0.65 0.78 70 21
[J2000]
13 ESO-LV IIIa-F
1989ESOLV.C...0000L
49.77 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 49.77 ... ... ... ... ... ...
14 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.74 log(2a) + 1 ... ... 0.53
log(a/b)
0.02 ... ... 23
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 329.70 15.50 0.29 0.71 0.84 73 23
[J2000]
15 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.18 log(2a) + 1 ... ... ... 0.03 ... ... ... ... 6.81E+14 90.80 6.50 ... ... ... ... ...
16 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.74 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 329.70 ... ... ... ... ... ...
17 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
66.3 (a) arcsec ... ... 0.480 (b/a) ... ... ... 33.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 132.60 ... 0.48 0.52 0.63 61 33
[J2000]
18 K_s (LGA/2MASS "total")
2003AJ....125..525J
145.1 (a) arcsec ... ... 0.480 (b/a) ... ... ... 33.0
[J2000]
Diameter for "total" magnitude 1.38E+14 290.20 ... 0.48 0.52 0.63 61 33
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1974MCG5..C...0000V
Published Object Name         : MCG -07-47-011                
Frequency Targeted            : POSS1 103a-E                  
Major Axis (2a)               : 2.5        arcmin                   2a = 150.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.1       arcmin              2b = 66.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 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]      : ...                                 ...
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          : 225924          -3951    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 346- G 026 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 8.00 arcmin 2a = 480.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.60 arcmin 2b = 156.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : About 25.5 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 : "Outer" diameter Coordinates Targeted : 225922. -395018. (B1950) Qualifiers : From new, raw data NED Comment : Diameters flagged uncertain.
No. 3 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 305.49 arcsec 2a = 305.49 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 939.97 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 375.84 arcsec 2a = 375.84 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1156.43 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 26.0 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 426.58 arcsec 2a = 426.58 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1312.55 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 27.0 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 6 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 206.54 arcsec 2a = 206.54 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 635.51 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 70% total B light 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 7 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 242.66 arcsec 2a = 242.66 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 746.65 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 80% total B light 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 8 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 302.00 arcsec 2a = 302.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 929.23 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 90% total B light 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 9 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 151.36 arcsec 2a = 151.36 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 465.72 arcsec Uncertainty : ... ... Axis Ratio : a/b = 3.08 b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 23.00 deg [B1950] 23 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 50% total B light, major dia. 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 : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 94.41 arcsec 2a = 94.41 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 : 50% total B light, aperture 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 : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 11 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 54.77 arcsec 2a = 54.77 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 : B disk exp. scale length 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 : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 67.19 arcsec 2a = 67.19 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 192.52 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.86 b/a = 0.35 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.65 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.78 Uncertainty : ... ... Cos-1(b/a) : ... 70 deg Position Angle [Equinox] : 21.31 deg [B1950] 21 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : B exponential scale length 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 : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 3460260 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 49.77 arcsec 2a = 49.77 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 : R exponential scale length Frequency : 6400 A 4.68E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 344.841675 -39.838333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 14 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 346- G 026 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.74 2a = 329.70 arcsec Uncertainty : 0.02 15.50 arcsec Minor Axis (2b) : ... 2b = 97.26 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.53 b/a = 0.29 Uncertainty : 0.03 0.02 Ellipticity : ... 1 - b/a = 0.71 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.84 Uncertainty : ... ... Cos-1(b/a) : ... 73 deg Position Angle [Equinox] : 23 deg [J2000] 23 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 : 230210.0 -393409. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 15 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 346- G 026 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.18 2a = 90.80 arcsec Uncertainty : 0.03 6.50 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 : 230210.0 -393409. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 16 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 346- G 026 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.74 2a = 329.70 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 : 230210.0 -393409. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 17 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 7456 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 66.3 arcsec 2a = 132.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 63.65 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.480 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 33.0 deg [J2000] 33 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 : 345.543427 -39.569401 (J2000) Qualifiers : From new, raw data NED Comment :
No. 18 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 7456 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 145.1 arcsec 2a = 290.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 139.30 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.480 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 33.0 deg [J2000] 33 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 : 345.543427 -39.569401 (J2000) Qualifiers : From new, raw data NED Comment :

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