Thank you bmarkus for the link. Indeed, that distro has many great astronomy programs included. Would it be difficult or time consuming for someone knowledgeable to port some of them to TinyCore (especially Cartes du Ciel and SkyGlobe)?
Thanks, Rich, for suggesting gnumeric, but it is quite heavy for my hardware that's one thing and it needs a lot of dependencies and I try to keep my system as simple and lightweight as possible. Maybe there are some other spreadsheets (including CLI ones like sc Spreadsheet Calculator) compatible with 5.x?
Or are there any plans to port/recompile DosBox for current TinyCore release? It would make a lot of things easier (for example - I could use SkyGlobe as well as some of DOS spreadsheets and math programs with plotting capabilities).