ISO week 21 2027
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, May 24, 2027
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, May 24, 2027 | ♊ 4 | |
| Tue, May 25, 2027 | ♊ 5 | Centaurus center — Constellation —  V 3.4 — Southern SpringGreat Diamond center — Asterism — V -0.1 — Tropical SpringC83, NGC 4945, barred spiral galaxy in Centaurus —  V 9.5 — Southern Spring |
| Wed, May 26, 2027 | ♊ 6 | Diadem (α Com) —  V 4 — Tropical Springα Com — V 5 — Tropical Springβ Com — V 4 — Northern Spring — in the Milky WayCanes Venatici center — Constellation — V 3.6 — Northern SpringSpring Triangle center — Asterism — V -0.1 — Tropical SpringC29, NGC 5005, spiral galaxy in Canes Venatici — V 9.8 — Finest NGC — Northern Spring |
| Thu, May 27, 2027 | ♊ 7 | M53, globular cluster in Coma Berenices — V 7.6 — Tropical SpringNGC 5033, galaxy in Canes Venatici — V 10.7 — Finest NGC — Northern Spring |
| Fri, May 28, 2027 | ♊ 8 | 🌗 Last Quarter — 13:57:56 UTC Virgo center — Constellation — V 3.8 — Tropical SpringM63, Sunflower Galaxy, spiral galaxy in Canes Venatici — V 8.6 — Northern Spring |
| Sat, May 29, 2027 | ♊ 9 | Mizar (ζ UMa) — V 2 — Northern Spring |
| Sun, May 30, 2027 | ♊ 10 | Spica (α Vir) — V 1 — Tropical SpringC77, NGC 5128, Centaurus A, peculiar galaxy in Centaurus — V 7.0 — Southern SpringC80, NGC 5139, Omega Centauri, globular cluster in Centaurus — V 3.6 — Southern Spring |
Weekly Solar-System Ephemeris
Snapshot: May 24, 2027 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♊︎ 2°38′ β −0°00′ | ♑︎ 12°40′ β −2°38′ | ♊︎ 24°49′ β +2°16′ | ♉︎ 11°06′ β −1°27′ | ♍︎ 3°42′ β +1°28′ | ♌︎ 19°26′ β +0°58′ | ♈︎ 23°13′ β −2°18′ |
| Observing | ||||||
| ☉ | | | | | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♌︎ 0°50′ β +8°01′ | ♊︎ 5°34′ β −0°06′ | ♈︎ 6°04′ β −1°22′ | ♒︎ 7°07′ β −4°37′ |
| 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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