ISO week 26 2025

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

Week begins: Monday, June 23, 2025

Notation:

Calendar

Date	Zodiac day	Events
Mon, Jun 23, 2025	3	M102, Spindle Galaxy, lenticular galaxy in Draco — V 9.9 — Northern Summer
Tue, Jun 24, 2025	4	Libra center — Constellation — V 3.4 — Tropical Summer
Wed, Jun 25, 2025	5	🌑 New Moon — 10:31:37 UTC β Cir — V 4 — Southern Summer Zubeneschamali (β Lib) — V 3 — Tropical Summer NGC 5907, Splinter Galaxy, galaxy in Draco — V 11.1 — Finest NGC — Northern Summer
Thu, Jun 26, 2025	6	Lupus center — Constellation — V 3.4 — Southern Summer M5, globular cluster in Serpens — V 5.6 — Tropical Summer
Fri, Jun 27, 2025	7
Sat, Jun 28, 2025	8	Nusakan (β CrB) — V 4 — Northern Summer — in the Milky Way
Sun, Jun 29, 2025	9	Alphecca (α CrB) — V 2 — Northern Summer — in the Milky Way

Weekly Solar-System Ephemeris

Snapshot: June 23, 2025 · 00:00 UTC

Notation:

Naked Eye

☉︎ Sun	☽︎ Moon	☿︎ Mercury	♀︎ Venus	♂︎ Mars	♃︎ Jupiter	♄︎ Saturn
♋︎ 1°48′ β +0°00′	♉︎ 28°11′ β +4°36′	♋︎ 24°43′ β +1°38′	♉︎ 17°21′ β −2°41′	♍︎ 3°11′ β +1°08′	♋︎ 2°59′ β −0°09′	♈︎ 1°36′ β −2°12′
Observing
☉					☉

Extended targets:

⚳︎ Ceres	♅︎ Uranus	♆︎ Neptune	♇︎ Pluto
♈︎ 10°26′ β −10°41′	♉︎ 29°19′ β −0°13′	♈︎ 2°08′ β −1°19′	♒︎ 3°18′ β −3°42′
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

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Binoculars

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Telescope

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