Overview

• The trio will cluster within roughly a degree of sky, putting all three in a single binocular field and easily visible to the naked eye.
• What you see will vary by location: a near-straight line on the U.S. East Coast, a tight triangle to the west, and a pronounced “smile” from Alaska and the Yukon.
• A very thin 5–6% waning crescent will show Earthshine, with Venus blazing near magnitude −3.8 and far brighter than Regulus.
• Brief lunar occultations of Venus are forecast for parts of far northern Canada, Greenland, western Europe and northern Africa, with a Regulus occultation confined to remote northern Siberia.
• This is described as the tightest Moon–Venus–Regulus grouping until 2041, and it comes just before Saturn reaches opposition on Sunday, Sept. 21.