ISO week 16 2027
This week is currently in preparation and will be published as part of the Star Almanack.
Week begins: Monday, April 19, 2027
Notation:
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Apr 19, 2027 | ♈ 31 | M96, spiral galaxy in Leo —  V 9.2 — Tropical SpringM105, elliptical galaxy in Leo — V 9.3 — Tropical SpringNGC 3384, galaxy in Leo — V 10.9 — Finest NGC — Tropical Spring |
| Tue, Apr 20, 2027 | ♉ 1 | ♉ Sun enters Taurus — 07:17:38 UTC 🌕 Full Moon · Milk Moon — 22:27:10 UTC |
| Wed, Apr 21, 2027 | ♉ 2 | NGC 3432, galaxy in Leo Minor — V 11.6 — Finest NGC — Northern Spring |
| Thu, Apr 22, 2027 | ♉ 3 |  Lyrids peak · radiant in Lyra · expected ZHR ≈ 18 · Moon 97% illuminated: strong 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.Alkes (α Crt) —  V 4 — Tropical Spring |
| Fri, Apr 23, 2027 | ♉ 4 | Merak (β UMa) —  V 2 — Northern SpringUrsa Major center — Constellation — V 3.2 — Northern Spring |
| Sat, Apr 24, 2027 | ♉ 5 | Dubhe (α UMa) — V 2 — Northern SpringC91, NGC 3532, open cluster in Carina — V 3.0 — Southern SpringNGC 3521, galaxy in Leo — V 9.9 — Finest NGC — Tropical Spring |
| Sun, Apr 25, 2027 | ♉ 6 | M97, Owl Nebula, planetary nebula in Ursa Major — V 9.9 — Northern Spring |
Weekly Solar-System Ephemeris
Snapshot: April 19, 2027 · 00:00 UTC
Notation:
Naked Eye
| ☉︎ Sun | ☽︎ Moon | ☿︎ Mercury | ♀︎ Venus | ♂︎ Mars | ♃︎ Jupiter | ♄︎ Saturn |
|---|---|---|---|---|---|---|
| ♈︎ 28°44′ β −0°00′ | ♎︎ 4°23′ β −3°39′ | ♈︎ 18°06′ β −1°44′ | ♓︎ 28°35′ β −1°30′ | ♌︎ 22°39′ β +2°32′ | ♌︎ 17°03′ β +1°01′ | ♈︎ 19°05′ β −2°14′ |
| Observing | ||||||
| ☉ | | ☉ | | | | ☉ |
Extended targets:
| ⚳︎ Ceres | ♅︎ Uranus | ♆︎ Neptune | ♇︎ Pluto |
|---|---|---|---|
| ♋︎ 18°59′ β +8°25′ | ♊︎ 3°38′ β −0°07′ | ♈︎ 5°01′ β −1°21′ | ♒︎ 7°05′ β −4°30′ |
| 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
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Binoculars
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Telescope
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.