ISO week 41 2025
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, October 6, 2025
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Oct 6, 2025 | ♎ 15 | |
| Tue, Oct 7, 2025 | ♎ 16 | 🌕 Full Moon · Harvest Moon — 03:47:37 UTC |
| Wed, Oct 8, 2025 | ♎ 17 | C19, IC 5146, Cocoon Nebula, bright nebula in Cygnus —  V 10.0 — Northern Autumn |
| Thu, Oct 9, 2025 | ♎ 18 | |
| Fri, Oct 10, 2025 | ♎ 19 | |
| Sat, Oct 11, 2025 | ♎ 20 | Sadalmelik (α Aqr) —  V 3 — Tropical Autumn |
| Sun, Oct 12, 2025 | ♎ 21 | Alnair (α Gru) — V 2 — Southern Autumn |
Weekly Solar-System Ephemeris
Snapshot: October 6, 2025 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♎︎ 13°00′ β +0°00′ | ♓︎ 27°05′ β +0°48′ | ♎︎ 28°57′ β −0°42′ | ♍︎ 20°14′ β +1°24′ | ♏︎ 9°17′ β −0°08′ | ♋︎ 23°03′ β +0°02′ | ♓︎ 27°23′ β −2°31′ |
| Observing | ||||||
| ☉ | | ☉ | | | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♈︎ 8°50′ β −15°03′ | ♊︎ 1°06′ β −0°13′ | ♈︎ 0°25′ β −1°22′ | ♒︎ 1°23′ β −3°47′ |
| 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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