Reproducing an SQL .Astronomy7 tutorial in a notebook

[drarnakarick]

Dany Vohl created a really nice SLite/DB Browser tutorial that creates a database of galaxy morhologies etc. This is it. I am going to reproduce this as a Python Notebook first showing the SQL commands, and then using Python/SQL Alchemy

• Translate dotastronomy tutorial
• Make corresponding sqlalchemy version, in a separate notebook