ISO 2026-W28

ISO dates: 2026-W28-1 through 2026-W28-7

Civil dates: Jul 6, 2026 – Jul 12, 2026

Calendar

Date	Zodiac day	Events
Mon, Jul 6, 2026	♋ 16	Dschubba (δ Sco) — 2 — Tropical Summer
Tue, Jul 7, 2026	♋ 17	Norma center — Constellation — V 4.6 — Southern Summer Triangulum Australe center — Constellation — V 2.9 — Southern Summer C95, NGC 6025, open cluster in Triangulum Australe — V 5.1 — Southern Summer 🌗 Last Quarter — 19:28:59 UTC C95 / NGC 6025 — 5 — Southern Summer Acrab (β1 Sco) — 3 — Tropical Summer β2 Sco — 5 — Tropical Summer
Wed, Jul 8, 2026	♋ 18
Thu, Jul 9, 2026	♋ 19
Fri, Jul 10, 2026	♋ 20	Apus center — Constellation — V 4.0 — Antarctic Summer M80 — 7 — Tropical Summer C89 / NGC 6087 · S Normae Cluster — 5 — Southern Summer
Sat, Jul 11, 2026	♋ 21	Scorpius's Fishhook center — Asterism — V 1.1 — Southern Summer
Sun, Jul 12, 2026	♋ 22	C75, NGC 6124, open cluster in Scorpius — V 5.8 — Southern Summer C107, NGC 6101, globular cluster in Apus — V 9.3 — Antarctic Summer M4 — 6 — Southern Summer C75 / NGC 6124 — 6 — Southern Summer C107 / NGC 6101 — 9 — Antarctic Summer

Weekly Solar-System Ephemeris

Snapshot: July 6, 2026 · 00:00 UTC

Naked Eye

☉︎ Sun	☽︎ Moon	☿︎ Mercury	♀︎ Venus	♂︎ Mars	♃︎ Jupiter	♄︎ Saturn
♋︎ 13°58′ β +0°00′	♓︎ 21°50′ β +1°52′	♋︎ 24°49′ β −3°45′	♌︎ 25°50′ β +1°36′	♊︎ 5°06′ β −0°14′	♌︎ 1°14′ β +0°27′	♈︎ 14°23′ β −2°24′
Observing
☉		☉			☉

Extended targets:

⚳︎ Ceres	♅︎ Uranus	♆︎ Neptune	♇︎ Pluto
♊︎ 15°27′ β −2°10′	♊︎ 3°57′ β −0°09′	♈︎ 4°25′ β −1°22′	♒︎ 4°46′ β −4°14′
Observing

β = ecliptic latitude (+ north, − south). Observing combines visual magnitude with solar elongation. Two telescope glyphs = substantial telescope. ☉ = Near Sun — not currently observable.

Planet Finder

Sky Note

Last Quarter Moon on July 7 improves evening conditions, and Messier 80 (M80), globular cluster in Scorpius and Messier 4 (M4), globular cluster in Scorpius arrive on July 10 and 12 in the rich Scorpius region. They are both globular clusters, but they look very different and make an excellent side-by-side observing lesson.

Naked eye: Find Scorpius and its bright reddish star Antares, then trace the curved body of the constellation through Dschubba and Acrab. From northern mid-latitudes the constellation stays low, so choose a clear southern horizon.

Binoculars: Messier 4 (M4), globular cluster in Scorpius is the easier and broader target, appearing as a diffuse patch near Antares under a dark sky. Messier 80 (M80), globular cluster in Scorpius is smaller and more concentrated, looking more nearly stellar at first glance.

Small telescope: Messier 4 (M4), globular cluster in Scorpius begins to resolve into stars relatively readily and shows a loose structure for a globular cluster. Messier 80 (M80), globular cluster in Scorpius remains a compact, concentrated ball and generally needs more aperture or magnification before its outer stars become grainy.

What to expect: Two objects with the same catalog type can present opposite visual personalities. Messier 4 (M4), globular cluster in Scorpius is broad and loose; Messier 80 (M80), globular cluster in Scorpius is compact and dense. Comparing them teaches more than observing either one in isolation.

Asterism: The Keystone of Hercules is a compact four-star doorway into Hercules and a practical starting point for locating the Great Hercules Globular.

Chart

ISO2026-W28-chart.png — chart slot.