v20200329

• Corrected data for IC3329
• Correct wrong object type for NGC2176
• Correct data for NGC1649
• Correct data for NGC3180
• Added outlines data: this is an initial attempt to provide open source nebulae outlines data to be used with astronomical software. See the metodology.txt file in the outlines directory. Contributions or suggestions are welcome.

v20191019

• Correct IC0423 and IC0424 diameters.
• Change coordinates for IC0444 to those provided by Simbad.
• Edit IC4277 object type and dimensions.

v20190920

• I don't know why, but it seems I forgot the last 4 IC objects in the catalog. Until now.

v20190609

• Correct some cross identifications

v20190604

• Correct some Caldwell cross references and change format to C_###
• Correct preferred object name for some duplicated objects

v20190303

• Added missing V-Mag values to all Messier objects.
• Corrected B-Mag and V-Mag values for Planetary Nebulaes by using values from HyperLEDA, because values from Simbad often refer to central star rather than the whole PN.
• Added magnitudes and diameters to some objects in the addendum.

v20180718

Fix weird character in IC3318 notes

v20171231

Fix NGC1437B declination.
Fix missing data on NGC4565A.