ISO week 04 2027

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

Week begins: Monday, January 25, 2027

Notation:

Calendar

Date	Zodiac day	Events
Mon, Jan 25, 2027	6	Nihal (β Lep) — V 3 — Tropical Winter Mensa center — Constellation — V 5.2 — Antarctic Winter M38, open cluster in Auriga — V 7.4 — Northern Winter
Tue, Jan 26, 2027	7	β Dor — V 4 — Southern Winter Arneb (α Lep) — V 3 — Tropical Winter Mintaka (δ Ori) — V 2 — Tropical Winter Lepus center — Constellation — V 3.6 — Tropical Winter Pictor center — Constellation — V 3.9 — Southern Winter M1, Crab Nebula, supernova remnant in Taurus — V 8.4 — Tropical Winter NGC 1931, emission/reflection nebula in Auriga — V 14 — Finest NGC — Northern Winter
Wed, Jan 27, 2027	8	Alnilam (ε Ori) — V 2 — Tropical Winter Orion center — Constellation — V 3.7 — Tropical Winter Orion's Belt center — Asterism — V 1.7 — Tropical Winter Orion's Sword center — Asterism — V 2.8 — Tropical Winter M36, open cluster in Auriga — V 6.3 — Northern Winter M42, Orion Nebula, emission nebula in Orion — V 4.0 — Tropical Winter M43, DeMairan's Nebula, diffuse nebula in Orion — V 9.0 — Tropical Winter C103, NGC 2070, Tarantula Nebula, bright nebula in Dorado — V 1.0 — Antarctic Winter NGC 1973, with NGC 1975 & 1977, emission/reflection nebula in Orion — V 7 — Finest NGC — Tropical Winter
Thu, Jan 28, 2027	9	Phact (α Col) — V 3 — Southern Winter Alnitak (ζ Ori) — V 2 — Tropical Winter Camelopardalis center — Constellation — V 4.4 — Arctic Winter NGC 2022, PN G196.6-10.9, planetary nebula in Orion — V 11.7 — Finest NGC — Tropical Winter NGC 2024, Flame Nebula, emission nebula in Orion — — Finest NGC — Tropical Winter
Fri, Jan 29, 2027	10	🌗 Last Quarter — 10:55:28 UTC M78, diffuse nebula in Orion — V 8.3 — Tropical Winter
Sat, Jan 30, 2027	11	Wazn (β Col) — V 3 — Southern Winter β Pic — V 4 — Southern Winter Saiph (κ Ori) — V 2 — Tropical Winter Columba center — Constellation — V 3.9 — Southern Winter
Sun, Jan 31, 2027	12	Betelgeuse (α Ori) — V 0 — Tropical Winter M37, open cluster in Auriga — V 6.2 — Northern Winter

Weekly Solar-System Ephemeris

Snapshot: January 25, 2027 · 00:00 UTC

Notation:

Naked Eye

☉︎ Sun	☽︎ Moon	☿︎ Mercury	♀︎ Venus	♂︎ Mars	♃︎ Jupiter	♄︎ Saturn
♒︎ 4°46′ β +0°00′	♍︎ 9°16′ β −1°42′	♒︎ 19°39′ β −1°23′	♐︎ 19°07′ β +2°51′	♍︎ 9°04′ β +4°05′	♌︎ 24°13′ β +1°01′	♈︎ 9°43′ β −2°22′
Observing
☉		☉

Extended targets:

⚳︎ Ceres	♅︎ Uranus	♆︎ Neptune	♇︎ Pluto
♋︎ 13°20′ β +8°33′	♊︎ 1°46′ β −0°08′	♈︎ 2°08′ β −1°22′	♒︎ 5°06′ β −4°17′
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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