ISO week 25 2027
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, June 21, 2027
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Jun 21, 2027 | ♋ 1 | ♋ Sun enters Cancer · Summer solstice · Litha — 14:10:50 UTC β Lup —  V 3 — Southern Summer |
| Tue, Jun 22, 2027 | ♋ 2 | Nekkar (β Boo) — V 3 — Northern Summer |
| Wed, Jun 23, 2027 | ♋ 3 | M102, Spindle Galaxy, lenticular galaxy in Draco —  V 9.9 — Northern SummerC88, NGC 5823, open cluster in Circinus — V 7.9 — Southern Summer |
| Thu, Jun 24, 2027 | ♋ 4 | |
| Fri, Jun 25, 2027 | ♋ 5 | Libra center — Constellation — V 3.4 — Tropical SummerNGC 5907, Splinter Galaxy, galaxy in Draco — V 11.1 — Finest NGC — Northern Summer |
| Sat, Jun 26, 2027 | ♋ 6 | β Cir —  V 4 — Southern SummerZubeneschamali (β Lib) — V 3 — Tropical SummerLupus center — Constellation — V 3.4 — Southern SummerM5, globular cluster in Serpens — V 5.6 — Tropical Summer |
| Sun, Jun 27, 2027 | ♋ 7 | 🌗 Last Quarter — 04:54:21 UTC |
Weekly Solar-System Ephemeris
Snapshot: June 21, 2027 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♊︎ 29°26′ β −0°00′ | ♑︎ 21°07′ β −1°51′ | ♋︎ 3°00′ β −3°30′ | ♊︎ 15°13′ β −0°33′ | ♍︎ 16°49′ β +0°51′ | ♌︎ 23°24′ β +0°56′ | ♈︎ 25°50′ β −2°23′ |
| Observing | ||||||
| ☉ | | ☉ | ☉ | | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♌︎ 12°02′ β +7°48′ | ♊︎ 7°11′ β −0°06′ | ♈︎ 6°34′ β −1°24′ | ♒︎ 6°46′ β −4°42′ |
| 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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