What is this abbreviation/record layout

LR Heyn

DGS #102117292, image 23 christening record 26 Sept 1682 (as an example)

what does the letter (H?) in front of Juliana mean? It appears in almost every record. Is it an abbreviation for Heiraten?

What is the "layout" of the record: date, father's name, mother's name, child's name?

Thank you for your help.