ISO 2025-W27
Week begins: Monday, June 30, 2025
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Jun 30, 2025 | ♋ 10 | |
| Tue, Jul 1, 2025 | ♋ 11 | |
| Wed, Jul 2, 2025 | ♋ 12 | 🌓 First Quarter — 19:30:12 UTC Unukalhai (α Ser) —  3 2.6 — Tropical Summerβ Ser —  4 3.7 — Tropical Summer |
| Thu, Jul 3, 2025 | ♋ 13 | R Coronae Borealis (R CrB) (variable brightness) — Northern Summer |
| Fri, Jul 4, 2025 | ♋ 14 | β TrA — 3 2.8 — Southern Summer |
| Sat, Jul 5, 2025 | ♋ 15 | |
| Sun, Jul 6, 2025 | ♋ 16 | Dschubba (δ Sco) — Var 2 2.3 1.9–2.3 — Tropical SummerC95 / NGC 6025 —  5 5.1 — Southern Summer |
Weekly Solar-System Ephemeris
Snapshot: Week begins June 30, 2025, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♋︎ 8°29′ β −0°00′ | ♍︎ 6°34′ β +1°16′ | ♌︎ 3°58′ β +0°44′ | ♉︎ 24°55′ β −2°38′ | ♍︎ 7°11′ β +1°02′ | ♋︎ 4°35′ β −0°08′ | ♈︎ 1°47′ β −2°14′ |
| Observing |  | -8.6 | 0.4 | -4.1 | 1.5 | ☉︎ | 1.0 |
| Rise | 04:13 | 09:13 | 06:20 | 01:44 | 09:17 | 03:57 | 23:36 |
| Set | 19:47 | 22:44 | 21:18 | 16:08 | 22:44 | 19:29 | 11:31 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♈︎ 11°58′ β −11°02′ | ♉︎ 29°40′ β −0°13′ | ♈︎ 2°10′ β −1°19′ | ♒︎ 3°10′ β −3°43′ |
| Observing | 9.0 | 5.8 | 7.8 | 14.4 |
| Rise | 00:44 | 01:45 | 23:32 | 21:26 |
| Set | 12:05 | 16:41 | 11:35 | 06:11 |
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 2026-10-23 11:50:33 UTC
ISO 2025-W27 runs from June 30 through July 6. Saturn and Neptune are separated by about 0.4° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.
Naked eye: 🌓 First Quarter — 19:30:12 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Unukalhai, β TrA, Dschubba as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -8.6; direct motion; 23.7% illuminated. Monday 00:00 UTC snapshot. Conjunction with Mars in ecliptic longitude Jun 30 01:13 UTC. Mercury: Naked eye; magnitude 0.4; direct motion; 48.1% illuminated. Monday 00:00 UTC snapshot. Venus: Naked eye; magnitude -4.1; direct motion; 63.3% 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 12:45 UTC. Mars: Naked eye; magnitude 1.5; direct motion; 92.4% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Jun 30 01:13 UTC. Ceres: Telescope; magnitude 9.0; direct motion; 97.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Jupiter: In solar glare; magnitude -1.9; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 1.0; 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 Venus in ecliptic longitude Jul 04 12:45 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. Station Jul 04 21:33 UTC: turns retrograde. Pluto: Substantial telescope; magnitude 14.4; retrograde motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot.
Binoculars: Trace Serpens’s charted figure in the finder, then identify Chow at its charted position.
Small telescope: NGC 6025: consult its dedicated finder and observing story for equipment guidance
Substantial telescope: No fixed-sky Calendar object is classified as requiring a substantial telescope this week.
Other objects listed this week: None
Mercury
Mercury: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 2.3° above the horizon. Rises 06:20; sets 21:18 (45°N, local apparent solar time). Visual magnitude 0.4. The disk is 48.1% illuminated (crescent). It is 25.5° from the Sun, on its east side. Motion is direct at 1.164° per day in ecliptic longitude at the snapshot. Position reference: Tarf, 11.0° away. Mercury: 11.0° from Tarf 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 28.7° below the horizon. Rises 01:44; sets 16:08 (45°N, local apparent solar time). Visual magnitude -4.1. The disk is 63.3% illuminated (gibbous). It is 43.6° from the Sun, on its west side. Motion is direct at 1.089° per day in ecliptic longitude at the snapshot. Position reference: Menkar, 14.2° away. Conjunction with Uranus in ecliptic longitude Jul 04 12:45 UTC. Venus: 14.2° from Menkar 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 17.7° above the horizon. Rises 09:13; sets 22:44 (45°N, local apparent solar time). Visual magnitude -8.6. The disk is 23.7% illuminated (waxing crescent). It is 58.1° from the Sun, on its east side. Motion is direct at 12.741° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 6.4° away. Mars is 0.7° away at the snapshot. Conjunction with Mars in ecliptic longitude Jun 30 01:13 UTC. Moon: 6.4° from Regulus 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 17.7° above the horizon. Rises 09:17; sets 22:44 (45°N, local apparent solar time). Visual magnitude 1.5. The disk is 92.4% illuminated (gibbous). It is 58.7° from the Sun, on its east side. Motion is direct at 0.578° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 7.0° away. Moon is 0.7° away at the snapshot. Conjunction with Moon in ecliptic longitude Jun 30 01:13 UTC. Mars: 7.0° from Regulus in the Pathfinder.
Jupiter
Jupiter: in solar glare at the Monday 00:00 UTC snapshot. Rises 03:57; sets 19:29 (45°N, local apparent solar time). Visual magnitude -1.9. The disk is 100.0% illuminated (nearly full). It is 3.9° from the Sun, on its west side. Motion is direct at 0.228° per day in ecliptic longitude at the snapshot. Position reference: Alhena, 8.2° away. Jupiter: 8.2° from Alhena 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 27.2° below the horizon. Rises 23:36; sets 11:31 (45°N, local apparent solar time). Visual magnitude 1.0. The disk is 99.7% illuminated (nearly full). It is 96.7° from the Sun, on its west side. Motion is direct at 0.022° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 17.1° away. Neptune is 1.0° away at the snapshot. Saturn: 17.1° from Fumalsamakah 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 25.1° below the horizon. Rises 01:45; sets 16:41 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 38.8° from the Sun, on its west side. Motion is direct at 0.048° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 11.7° away. Conjunction with Venus in ecliptic longitude Jul 04 12:45 UTC. Uranus: 11.7° 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 26.4° below the horizon. Rises 23:32; sets 11:35 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 96.3° from the Sun, on its west side. Motion is direct at 0.003° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 16.8° away. Saturn is 1.0° away at the snapshot. Station Jul 04 21:33 UTC: turns retrograde. Neptune: 16.8° 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 38.1° below the horizon. Rises 00:44; sets 12:05 (45°N, local apparent solar time). Visual magnitude 9.0. The disk is 97.0% illuminated (gibbous). It is 86.6° from the Sun, on its west side. Motion is direct at 0.207° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 13.1° away. Ceres: 13.1° from Diphda 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 4.5° below the horizon. Rises 21:26; sets 06:11 (45°N, local apparent solar time). Visual magnitude 14.4. The disk is 100.0% illuminated (nearly full). It is 155.1° from the Sun, on its west side. Motion is retrograde at 0.021° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.4° away. Pluto: 8.4° from Dabih in the Pathfinder.
Highlights
Mercury
Naked eye; magnitude 0.4; direct motion; 48.1% illuminated. Monday 00:00 UTC snapshot. Mercury: 11.0° from Tarf in the Pathfinder.
Venus
Naked eye; magnitude -4.1; direct motion; 63.3% 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 12:45 UTC. Venus: 14.2° from Menkar in the Pathfinder.
Moon
Naked eye; magnitude -8.6; direct motion; 23.7% illuminated. Monday 00:00 UTC snapshot. Conjunction with Mars in ecliptic longitude Jun 30 01:13 UTC. Moon: 6.4° from Regulus in the Pathfinder.
Mars
Naked eye; magnitude 1.5; direct motion; 92.4% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Jun 30 01:13 UTC. Mars: 7.0° from Regulus in the Pathfinder.
Jupiter
In solar glare; magnitude -1.9; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Jupiter: 8.2° from Alhena in the Pathfinder.
Saturn
Naked eye; magnitude 1.0; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Saturn: 17.1° from Fumalsamakah 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 Venus in ecliptic longitude Jul 04 12:45 UTC. Uranus: 11.7° 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. Station Jul 04 21:33 UTC: turns retrograde. Neptune: 16.8° from Fumalsamakah in the Pathfinder.
Ceres
Telescope; magnitude 9.0; direct motion; 97.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: 13.1° from Diphda in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.4; retrograde motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Pluto: 8.4° from Dabih in the Pathfinder.