ISO week 32 2027

This week is currently in preparation and will be published as part of the Star Almanack.

Week begins: Monday, August 9, 2027

Notation:

Calendar

Date	Zodiac day	Events
Mon, Aug 9, 2027	18	🌓 First Quarter — 04:54:11 UTC M16, Eagle Nebula, open cluster in Serpens — V 6.4 — Tropical Summer M18, open cluster in Sagittarius — V 7.5 — Tropical Summer M24, Sagittarius Star Cloud, Milky Way star cloud in Sagittarius — V 4.6 — Tropical Summer
Tue, Aug 10, 2027	19	M17, Omega Nebula, diffuse nebula in Sagittarius — V 7.0 — Tropical Summer
Wed, Aug 11, 2027	20	Kaus Australis (ε Sgr) — V 2 — Southern Summer M28, globular cluster in Sagittarius — V 6.8 — Southern Summer
Thu, Aug 12, 2027	21	Perseids peak · radiant in Perseus · expected ZHR ≈ 100 · Moon 84% illuminated: strong moonlight interference · Use a dark site, allow 20–30 minutes for dark adaptation, and observe with the unaided eye. Put the Moon behind a building, tree, or other obstruction and watch the darkest open sky. α Tel — V 3 — Southern Summer M25, open cluster in Sagittarius — V 6.5 — Tropical Summer M69, globular cluster in Sagittarius — V 7.6 — Southern Summer NGC 6633, open cluster in Oph — V 5.6 — Finest NGC — Tropical Summer
Fri, Aug 13, 2027	22
Sat, Aug 14, 2027	23	α Sct — V 4 — Tropical Summer M22, Sagittarius Cluster, globular cluster in Sagittarius — V 5.1 — Southern Summer
Sun, Aug 15, 2027	24	Vega (α Lyr) — V 0 — Northern Summer Corona Australis center — Constellation — V 4.2 — Southern Summer Teapot of Sagittarius center — Asterism — V 1.8 — Southern Summer M70, globular cluster in Sagittarius — V 7.9 — Southern Summer

Weekly Solar-System Ephemeris

Snapshot: August 9, 2027 · 00:00 UTC

Notation:

Naked Eye

☉︎ Sun	☽︎ Moon	☿︎ Mercury	♀︎ Venus	♂︎ Mars	♃︎ Jupiter	♄︎ Saturn
♌︎ 16°13′ β −0°00′	♏︎ 13°47′ β −5°17′	♌︎ 13°31′ β +1°39′	♌︎ 15°23′ β +1°11′	♎︎ 14°43′ β +0°02′	♍︎ 2°53′ β +0°54′	♈︎ 27°53′ β −2°35′
Observing
☉		☉	☉		☉

Extended targets:

⚳︎ Ceres	♅︎ Uranus	♆︎ Neptune	♇︎ Pluto
♍︎ 3°33′ β +7°36′	♊︎ 9°22′ β −0°06′	♈︎ 6°25′ β −1°26′	♒︎ 5°43′ β −4°48′
Observing
☉

β = ecliptic latitude (+ north, − south). Observing combines visual magnitude with solar elongation. Two telescope glyphs = substantial telescope. ☉ = Near Sun — not currently observable.

Notation:

Planet Finder

Planet Finder — Mixed Learner — Mixed Learner

Sky Notes

Naked eye

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

Binoculars

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

Telescope

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.