ISO 2026-W27
Week begins: Monday, June 29, 2026
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Jun 29, 2026 | ♋ 9 | 🌕 Full Moon · Hay Moon — 23:56:41 UTC |
| Tue, Jun 30, 2026 | ♋ 10 | Alphecca (α CrB) —  2 2.2 — Northern Summer — in the Milky Way |
| Wed, Jul 1, 2026 | ♋ 11 | |
| Thu, Jul 2, 2026 | ♋ 12 | Unukalhai (α Ser) — 3 2.6 — Tropical Summerβ Ser —  4 3.7 — Tropical Summer |
| Fri, Jul 3, 2026 | ♋ 13 | R Coronae Borealis (R CrB) (variable brightness) — Northern Summer |
| Sat, Jul 4, 2026 | ♋ 14 | |
| Sun, Jul 5, 2026 | ♋ 15 | β TrA — 3 2.8 — Southern Summer |
Weekly Solar-System Ephemeris
Snapshot: Week begins June 29, 2026, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♋︎ 7°18′ β −0°00′ | ♐︎ 26°23′ β −4°36′ | ♋︎ 26°14′ β −1°58′ | ♌︎ 17°55′ β +1°50′ | ♊︎ 0°08′ β −0°19′ | ♋︎ 29°44′ β +0°26′ | ♈︎ 14°06′ β −2°22′ |
| Observing |  | -12.3 | ☉︎ | -4.0 | 1.3 | -1.8 | 0.8 |
| Rise | 04:12 | 19:16 | 05:55 | 07:36 | 01:52 | 06:04 | 00:08 |
| Set | 19:48 | 03:08 | 20:44 | 22:08 | 16:48 | 21:09 | 12:40 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♊︎ 12°39′ β −2°20′ | ♊︎ 3°36′ β −0°09′ | ♈︎ 4°24′ β −1°22′ | ♒︎ 4°55′ β −4°13′ |
| Observing |  9.0 | 5.8 | 7.8 | 14.5 |
| Rise | 02:46 | 02:03 | 23:42 | 21:40 |
| Set | 17:43 | 17:07 | 11:51 | 06:24 |
β = ecliptic latitude (+ north, − south).
Rise and set are Local Apparent Time for the selected latitude.
Naked-eye observing uses the Sun’s altitude at the selected Monday observer time: Daylight (Sun ≥ −0.833°), Civil twilight (−0.833° to −6°), Nautical twilight (−6° to −12°), Astronomical twilight (−12° to −18°), and Night (below −18°).
Solar Glare identifies a body too close to the Sun when the sky-state rule does not already supersede its naked-eye classification.
The Sun’s observing status uses this same five-state sky classification.
Planet Finder
Sky Notes
Kilroy: Sky Notes · generated 2026-10-22 04:11:38 UTC
ISO 2026-W27 runs from June 29 through July 5. Ceres is about 2.9° in ecliptic longitude from Aldebaran in Taurus. Mercury and Jupiter are separated by about 3.5° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.
Naked eye: 🌕 Full Moon · Hay Moon — 23:56:41 UTC. Bright moonlight favors prominent stars and planets while reducing contrast on faint deep-sky objects. Use Alphecca, Unukalhai, β TrA as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -12.3; direct motion; 98.9% illuminated. Monday 00:00 UTC snapshot. Opposition in ecliptic longitude Jun 29 23:56 UTC. Conjunction with Pluto in ecliptic longitude Jul 02 05:11 UTC. Mercury: In solar glare; magnitude 1.9; direct motion; 14.9% illuminated. Monday 00:00 UTC snapshot. Station Jun 29 17:35 UTC: turns retrograde. Venus: Naked eye; magnitude -4.0; direct motion; 69.9% illuminated. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 1.3; direct motion; 95.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Uranus in ecliptic longitude Jul 04 06:07 UTC. Ceres: Telescope; magnitude 9.0; direct motion; 99.4% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Jupiter: Naked eye; magnitude -1.8; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.8; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Uranus: Binoculars; magnitude 5.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Mars in ecliptic longitude Jul 04 06:07 UTC. Neptune: Telescope; magnitude 7.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Pluto: Substantial telescope; magnitude 14.5; retrograde motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Jul 02 05:11 UTC.
Binoculars: Trace Serpens’s charted figure in the finder, then identify Chow at its charted position.
Small telescope: No fixed-sky Calendar object is classified for telescope observing this week.
Substantial telescope: No fixed-sky Calendar object is classified as requiring a substantial telescope this week.
No deep-sky objects are featured this week.
Other objects listed this week: None
Mercury
Mercury: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:55; sets 20:44 (45°N, local apparent solar time). Visual magnitude 1.9. The disk is 14.9% illuminated (crescent). It is 19.0° from the Sun, on its east side. Motion is direct at 0.057° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 9.1° away. Jupiter is 4.2° away at the snapshot. Station Jun 29 17:35 UTC: turns retrograde. Mercury: 9.1° from Pollux in the Pathfinder.
Venus
Venus: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 10.8° above the horizon. Rises 07:36; sets 22:08 (45°N, local apparent solar time). Visual magnitude -4.0. The disk is 69.9% illuminated (gibbous). It is 40.7° from the Sun, on its east side. Motion is direct at 1.138° per day in ecliptic longitude at the snapshot. Position reference: Acubens, 7.9° away. Venus: 7.9° from Acubens in the Pathfinder.
Moon
Moon: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 11.1° above the horizon. Rises 19:16; sets 03:08 (45°N, local apparent solar time). Visual magnitude -12.3. The disk is 98.9% illuminated (waxing gibbous). It is 168.2° from the Sun, on its east side. Motion is direct at 11.877° per day in ecliptic longitude at the snapshot. Position reference: Shaula, 9.3° away. Opposition in ecliptic longitude Jun 29 23:56 UTC. Conjunction with Pluto in ecliptic longitude Jul 02 05:11 UTC. Moon: 9.3° from Shaula in the Pathfinder.
Mars
Mars: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 25.1° below the horizon. Rises 01:52; sets 16:48 (45°N, local apparent solar time). Visual magnitude 1.3. The disk is 95.2% illuminated (gibbous). It is 37.2° from the Sun, on its west side. Motion is direct at 0.713° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 11.3° away. Uranus is 3.5° away at the snapshot. Conjunction with Uranus in ecliptic longitude Jul 04 06:07 UTC. Mars: 11.3° from Aldebaran in the Pathfinder.
Jupiter
Jupiter: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 0.8° above the horizon. Rises 06:04; sets 21:09 (45°N, local apparent solar time). Visual magnitude -1.8. The disk is 99.9% illuminated (nearly full). It is 22.4° from the Sun, on its east side. Motion is direct at 0.213° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 8.8° away. Mercury is 4.2° away at the snapshot. Jupiter: 8.8° from Pollux in the Pathfinder.
Saturn
Saturn: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 30.6° below the horizon. Rises 00:08; sets 12:40 (45°N, local apparent solar time). Visual magnitude 0.8. The disk is 99.7% illuminated (nearly full). It is 83.2° from the Sun, on its west side. Motion is direct at 0.046° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 16.9° away. Saturn: 16.9° from Alrescha in the Pathfinder.
Uranus
Uranus: binoculars at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 23.9° below the horizon. Rises 02:03; sets 17:07 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 33.7° from the Sun, on its west side. Motion is direct at 0.051° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 8.4° away. Mars is 3.5° away at the snapshot. Conjunction with Mars in ecliptic longitude Jul 04 06:07 UTC. Uranus: 8.4° from Aldebaran in the Pathfinder.
Neptune
Neptune: telescope at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 27.8° below the horizon. Rises 23:42; sets 11:51 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 92.9° from the Sun, on its west side. Motion is direct at 0.005° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 18.6° away. Neptune: 18.6° from Fumalsamakah in the Pathfinder.
Ceres
Ceres: telescope at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 22.9° below the horizon. Rises 02:46; sets 17:43 (45°N, local apparent solar time). Visual magnitude 9.0. The disk is 99.4% illuminated (nearly full). It is 24.8° from the Sun, on its west side. Motion is direct at 0.403° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 4.0° away. Ceres: 4.0° from Aldebaran in the Pathfinder.
Pluto
Pluto: substantial telescope at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 6.6° below the horizon. Rises 21:40; sets 06:24 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 152.1° from the Sun, on its west side. Motion is retrograde at 0.020° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.8° away. Conjunction with Moon in ecliptic longitude Jul 02 05:11 UTC. Pluto: 8.8° from Dabih in the Pathfinder.
Highlights
Mercury
In solar glare; magnitude 1.9; direct motion; 14.9% illuminated. Monday 00:00 UTC snapshot. Station Jun 29 17:35 UTC: turns retrograde. Mercury: 9.1° from Pollux in the Pathfinder.
Venus
Naked eye; magnitude -4.0; direct motion; 69.9% illuminated. Monday 00:00 UTC snapshot. Venus: 7.9° from Acubens in the Pathfinder.
Moon
Naked eye; magnitude -12.3; direct motion; 98.9% illuminated. Monday 00:00 UTC snapshot. Opposition in ecliptic longitude Jun 29 23:56 UTC. Conjunction with Pluto in ecliptic longitude Jul 02 05:11 UTC. Moon: 9.3° from Shaula in the Pathfinder.
Mars
Naked eye; magnitude 1.3; direct motion; 95.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Uranus in ecliptic longitude Jul 04 06:07 UTC. Mars: 11.3° from Aldebaran in the Pathfinder.
Jupiter
Naked eye; magnitude -1.8; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Jupiter: 8.8° from Pollux in the Pathfinder.
Saturn
Naked eye; magnitude 0.8; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Saturn: 16.9° from Alrescha in the Pathfinder.
Uranus
Binoculars; magnitude 5.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Mars in ecliptic longitude Jul 04 06:07 UTC. Uranus: 8.4° from Aldebaran in the Pathfinder.
Neptune
Telescope; magnitude 7.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Neptune: 18.6° from Fumalsamakah in the Pathfinder.
Ceres
Telescope; magnitude 9.0; direct motion; 99.4% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: 4.0° from Aldebaran in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.5; retrograde motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Jul 02 05:11 UTC. Pluto: 8.8° from Dabih in the Pathfinder.