URANOMETRIA INTERACTIVA
Plate XVII — Borealis Charts, Anno MDCCXCII
Ursa Major
Orion
Cygnus
Ursa Major
α
η
Orion
α
β
Cygnus
α
N
HORIZOBS · MERIDIAN BAND
IAN
Winter Ascension
✦ magnitude iv · ✦ ii · ✦ i — drag the field to turn the heavens
from the 100-gallery · Plate XVII of C