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Figure 1: In some cases the coordinates are not sufficient to identify a galaxy. This shows that often additional information is required. For instance for the pair of galaxies NGC 3314A and NGC 3314B. |
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Figure 2: In some cases the definition of what is a galaxy is difficult. The object ESO 267-41 = PGC 40012 is considered as three galaxies in the MCG catalog (MCG-7-26-1 MCG-7-26-2 and MCG-7-26-3). |
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Figure 3: Comparison of coordinates in LEDA with coordinates from SIMBAD (CDS). |
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Figure 4: Illustration of the EPIDEMIC method. The best and largest sample (here STD1) is used to convert the second best and largest sample STD2 to its scale. So, one obtains the new standard STD1+STD2. The process is applied to the next sample to get the next standard STD1+STD2+STD3, etc. In the present illustration, one can see that it would have been impossible to convert the sample STD4 to STD1 without the EPIDEMIC method. |
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Figure 5:
Standard deviation of position angle as a function of
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Figure 6: The identification of NGC 3314A and NGC 3314B can be made unambiguously using coordinates, diameter, axis ratio and position angle. Such an identification works even in the most difficult cases. |
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Figure 7:
The equal-area galaxy distribution of the present catalog in supergalactic
coordinates. The longitude ![]() ![]() |
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