ISO week 42 2027
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, October 18, 2027
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Oct 18, 2027 | ♎ 26 | α Lac —  V 4 — Northern Autumn — in the Milky Wayβ PsA — V 4 — Southern AutumnGrus center — Constellation — V 3.7 — Southern AutumnLacerta center — Constellation — V 4.5 — Northern AutumnC63, NGC 7293, Helix Nebula, planetary nebula in Aquarius — V 6.5 — Finest NGC — Tropical Autumn |
| Tue, Oct 19, 2027 | ♎ 27 | |
| Wed, Oct 20, 2027 | ♎ 28 | C30, NGC 7331, Deer Lick Group, spiral galaxy in Pegasus —  V 9.5 — Finest NGC — Northern Autumn |
| Thu, Oct 21, 2027 | ♎ 29 |  Orionids peak · radiant in Orion · expected ZHR ≈ 20 · Moon 62% illuminated: substantial 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.Tiaki (β Gru) —  V 2 — Southern AutumnPegasus center — Constellation — V 3.4 — Tropical Autumn |
| Fri, Oct 22, 2027 | ♎ 30 | 🌗 Last Quarter — 17:29:10 UTC β Oct — V 4 — Antarctic Autumn |
| Sat, Oct 23, 2027 | ♏ 1 | ♏ Sun enters Scorpio — 15:32:52 UTC |
| Sun, Oct 24, 2027 | ♏ 2 |
Weekly Solar-System Ephemeris
Snapshot: October 18, 2027 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♎︎ 24°23′ β +0°00′ | ♉︎ 23°57′ β +4°50′ | ♎︎ 28°03′ β −1°52′ | ♏︎ 12°13′ β +0°16′ | ♐︎ 1°27′ β −0°45′ | ♍︎ 17°41′ β +1°00′ | ♈︎ 24°25′ β −2°47′ |
| Observing | ||||||
| ☉ | | ☉ | ☉ | | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♎︎ 5°37′ β +7°43′ | ♊︎ 9°31′ β −0°06′ | ♈︎ 4°43′ β −1°28′ | ♒︎ 4°45′ β −4°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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