ISO week 30 2025
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, July 21, 2025
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Jul 21, 2025 | ♋ 31 | M19, globular cluster in Ophiuchus —  V 6.8 — Southern SummerM62, globular cluster in Ophiuchus — V 6.5 — Southern Summer |
| Tue, Jul 22, 2025 | ♌ 1 | ♌ Sun enters Leo — 13:29:27 UTC |
| Wed, Jul 23, 2025 | ♌ 2 | Sabik (η Oph) —  V 2 — Tropical Summer |
| Thu, Jul 24, 2025 | ♌ 3 | 🌑 New Moon — 19:11:12 UTC Rasalgethi (α1 Her) — V 3 — Tropical Summerα2 Her — V 5 — Tropical SummerC69, NGC 6302, Bug Nebula, planetary nebula in Scorpius —  V 12.8 — Southern Summer |
| Fri, Jul 25, 2025 | ♌ 4 | Ara center — Constellation — V 3.5 — Southern SummerHercules center — Constellation — V 3.8 — Northern SummerOphiuchus center — Constellation — V 3.3 — Tropical SummerM9, globular cluster in Ophiuchus — V 7.7 — Tropical SummerM92, globular cluster in Hercules — V 6.4 — Northern Summer |
| Sat, Jul 26, 2025 | ♌ 5 | |
| Sun, Jul 27, 2025 | ♌ 6 | β Ara — V 3 — Southern SummerC81, NGC 6352, globular cluster in Ara — V 8.1 — Southern Summer |
Weekly Solar-System Ephemeris
Snapshot: July 21, 2025 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♋︎ 28°30′ β +0°00′ | ♊︎ 8°11′ β +5°01′ | ♌︎ 15°15′ β −3°49′ | ♊︎ 18°20′ β −2°02′ | ♍︎ 19°36′ β +0°45′ | ♋︎ 9°19′ β −0°06′ | ♈︎ 1°53′ β −2°20′ |
| Observing | ||||||
| ☉ | | ☉ | | | ☉ | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♈︎ 15°27′ β −12°11′ | ♊︎ 0°33′ β −0°13′ | ♈︎ 2°06′ β −1°20′ | ♒︎ 2°41′ β −3°45′ |
| 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
Sky Notes
Naked eye
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Binoculars
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Telescope
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