ISO week 47 2025
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, November 17, 2025
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Nov 17, 2025 | ♏ 26 |  Leonids peak · radiant in Leo · expected ZHR ≈ 15 · Moon 7% illuminated: little moonlight interference · Use a dark site, allow 20–30 minutes for dark adaptation, and observe with the unaided eye. Watch a broad area of sky rather than staring directly at the radiant.β1 Tuc —  V 4 — Southern Autumnβ2 Tuc — V 5 — Southern Autumn |
| Tue, Nov 18, 2025 | ♏ 27 | β3 Tuc — V 5 — Southern AutumnC17, NGC 147, dwarf elliptical galaxy in Cassiopeia —  V 9.3 — Northern Autumn |
| Wed, Nov 19, 2025 | ♏ 28 | Schedar (α Cas) —  V 2 — Northern Autumn — in the Milky WayAndromeda center — Constellation — V 4.0 — Northern AutumnPisces center — Constellation — V 4.4 — Tropical AutumnM110, elliptical galaxy in Andromeda — V 8.5 — Northern AutumnC18, NGC 185, dwarf elliptical galaxy in Cassiopeia — V 9.2 — Finest NGC — Northern Autumn |
| Thu, Nov 20, 2025 | ♏ 29 | 🌑 New Moon — 06:47:16 UTC Diphda (β Cet) — V 2 — Tropical AutumnM31, Andromeda Galaxy, spiral galaxy in Andromeda — V 3.4 — Northern AutumnM32, elliptical galaxy in Andromeda — V 8.1 — Northern AutumnC1, NGC 188, open cluster in Cepheus — V 8.1 — Arctic Autumn |
| Fri, Nov 21, 2025 | ♏ 30 | Phoenix center — Constellation — V 3.6 — Southern AutumnC56, NGC 246, Skull Nebula, planetary nebula in Cetus — V 8.0 — Finest NGC — Tropical AutumnC62, NGC 247, spiral galaxy in Cetus — V 8.9 — Tropical AutumnC65, NGC 253, Sculptor Galaxy, spiral galaxy in Sculptor — V 7.1 — Finest NGC — Southern Autumn |
| Sat, Nov 22, 2025 | ♐ 1 | ♐ Sun enters Sagittarius — 01:35:35 UTC NGC 281, PacMan Nebula, emission nebula in Cassiopeia — V 7.4 — Finest NGC — Northern Autumn |
| Sun, Nov 23, 2025 | ♐ 2 | Cih (γ Cas) — V 2 — Northern AutumnCassiopeia's W center — Asterism — V 2.1 — Northern AutumnC70, NGC 300, spiral galaxy in Sculptor — V 8.1 — Southern Autumn |
Weekly Solar-System Ephemeris
Snapshot: November 17, 2025 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♏︎ 24°53′ β −0°00′ | ♎︎ 19°12′ β −2°46′ | ♐︎ 2°41′ β −0°36′ | ♏︎ 12°36′ β +1°09′ | ♐︎ 9°00′ β −0°33′ | ♋︎ 25°06′ β +0°07′ | ♓︎ 25°16′ β −2°25′ |
| Observing | ||||||
| ☉ | | ☉ | ☉ | ☉ | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♈︎ 2°35′ β −12°24′ | ♉︎ 29°38′ β −0°12′ | ♓︎ 29°32′ β −1°22′ | ♒︎ 1°38′ β −3°46′ |
| 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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