ISO week 18 2027
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, May 3, 2027
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, May 3, 2027 | ♉ 14 | |
| Tue, May 4, 2027 | ♉ 15 | |
| Wed, May 5, 2027 | ♉ 16 | Beltane · Spring–Summer midpoint — 17:25:11 UTC Denebola (β Leo) —  V 2 — Tropical SpringNGC 3877, galaxy in Ursa Major —  V 11.8 — Finest NGC — Northern Spring |
| Thu, May 6, 2027 | ♉ 17 |  η-Aquariids peak · radiant in Aquarius · expected ZHR ≈ 50 · Moon 0% 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.🌑 New Moon — 10:58:38 UTC β Hya —  V 4 — Southern SpringZavijava (β Vir) — V 4 — Tropical SpringNGC 3941, galaxy in Ursa Major — V 11.3 — Finest NGC — Northern Spring |
| Fri, May 7, 2027 | ♉ 18 | Phecda (γ UMa) — V 2 — Northern Spring |
| Sat, May 8, 2027 | ♉ 19 | M109, barred spiral galaxy in Ursa Major — V 9.8 — Northern SpringNGC 4026, galaxy in Ursa Major — V 11.7 — Finest NGC — Northern Spring |
| Sun, May 9, 2027 | ♉ 20 | C60, NGC 4038, Antennae Galaxies, spiral galaxy in Corvus — V 11.3 — Finest NGC — Tropical SpringC61, NGC 4039, Antennae Galaxies, spiral galaxy in Corvus — V 13.0 — Tropical Spring |
Weekly Solar-System Ephemeris
Snapshot: May 3, 2027 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♉︎ 12°21′ β +0°00′ | ♓︎ 29°05′ β +3°24′ | ♉︎ 17°13′ β +0°25′ | ♈︎ 15°34′ β −1°39′ | ♌︎ 26°06′ β +2°04′ | ♌︎ 17°36′ β +1°00′ | ♈︎ 20°49′ β −2°15′ |
| Observing | ||||||
| ☉ | | ☉ | | | | |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♋︎ 23°21′ β +8°14′ | ♊︎ 4°22′ β −0°07′ | ♈︎ 5°29′ β −1°22′ | ♒︎ 7°10′ β −4°32′ |
| 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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