Adding own star databases

[Waldhör]

Is there a way to add own databases? E.g. I would be interested in Supernova databases. E.g. from https://www.rochesterastronomy.org/supernova.html

[han.k]

Yes that is reasonably easy. For supernova the best place would be to add them to the file variable_stars.csv. You can ope the file in notepad or something similar. The format is simple:

RA[0..864000], DEC[-324000..324000], label
575702,93313,T_CrB_2-10.8;Period-29000;Spectr_M3III+pec(Nova)
724565,63735,WZ_Sge_7-15.53;_Period-11900;Spectr_DAep(UG)
326815,-116568,T_Pyx_7-15.77;_Period-7000;Spectr_pec(Nova)
310027,192518,SW_UMa_9.7-16.5;_Period-460;_Spectr_pec(UG)
.....

So it is simple text/CSV file containing three fields. RA, DEC, label separated by a comma. RA, DEC are stored as integers to keep it compact. For RA the range is 0..864000. To convert the position from hours you have to multiply RA with 864000/24.

Easiest is to process your data in a spreadsheet and then copy it to the .csv file.

For a single nova, it is easier to use the popup menu "Add a marker at RA,DEC position"

Han