ISO 2026-W30
Week begins: Monday, July 20, 2026
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Jul 20, 2026 | ♋ 30 | M10 —  7 6.6 — Tropical Summer |
| Tue, Jul 21, 2026 | ♋ 31 | 🌓 First Quarter — 11:05:36 UTC M62 — 7 6.5 — Southern SummerM19 — 7 6.8 — Southern Summer |
| Wed, Jul 22, 2026 | ♌ 1 | ♌ Sun enters Leo — 19:13:05 UTC |
| Thu, Jul 23, 2026 | ♌ 2 | Sabik (η Oph) —  2 2.4 — Tropical Summer |
| Fri, Jul 24, 2026 | ♌ 3 | C69 / NGC 6302 · Bug Nebula — 13 12.8 — Southern SummerRasalgethi (α1 Her) — 3 3.4 — Tropical Summerα2 Her —  5 5.3 — Tropical Summer |
| Sat, Jul 25, 2026 | ♌ 4 | M92 — 6 6.4 — Northern SummerM9 — 8 7.7 — Tropical Summer |
| Sun, Jul 26, 2026 | ♌ 5 |
Weekly Solar-System Ephemeris
Snapshot: Week begins July 20, 2026, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♋︎ 27°20′ β −0°00′ | ♎︎ 10°19′ β −3°21′ | ♋︎ 17°01′ β −4°40′ | ♍︎ 11°18′ β +0°53′ | ♊︎ 14°52′ β −0°04′ | ♌︎ 4°18′ β +0°28′ | ♈︎ 14°43′ β −2°28′ |
| Observing |  | -9.4 | ☉︎ | -4.2 | 1.3 | ☉︎ | 0.7 |
| Rise | 04:25 | 11:00 | 03:55 | 08:18 | 01:15 | 05:02 | 22:44 |
| Set | 19:35 | 22:10 | 18:32 | 21:32 | 16:38 | 19:57 | 11:17 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♊︎ 21°00′ β −1°48′ | ♊︎ 4°34′ β −0°09′ | ♈︎ 4°23′ β −1°23′ | ♒︎ 4°27′ β −4°16′ |
| Observing | 9.0 | 5.8 | 7.7 | 14.4 |
| Rise | 01:48 | 00:40 | 22:16 | 20:13 |
| Set | 16:59 | 15:46 | 10:25 | 04:55 |
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 04:11:43 UTC
ISO 2026-W30 runs from July 20 through July 26. Ceres is about 1.6° in ecliptic longitude from Elnath in Taurus.
Naked eye: 🌓 First Quarter — 11:05:36 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Sabik, Rasalgethi as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -9.4; direct motion; 35.5% illuminated. Monday 00:00 UTC snapshot. Mercury: In solar glare; magnitude 3.3; retrograde motion; 6.0% illuminated. Monday 00:00 UTC snapshot. Station Jul 23 22:57 UTC: turns direct. Venus: Naked eye; magnitude -4.2; direct motion; 61.4% illuminated. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 1.3; direct motion; 94.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 9.0; direct motion; 98.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Jupiter: In solar glare; magnitude -1.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.7; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Jul 26 19:56 UTC: turns retrograde. 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. Neptune: Telescope; magnitude 7.7; retrograde 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 14.4; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot.
Binoculars: Trace Hercules’s charted figure in the finder, then identify Alpha2 Her at its charted position.
Small telescope: M10: consult its dedicated finder and observing story for equipment guidance; M62: consult its dedicated finder and observing story for equipment guidance; M19: consult its dedicated finder and observing story for equipment guidance; Bug Nebula: consult its dedicated finder and observing story for equipment guidance; M92: consult its dedicated finder and observing story for equipment guidance; M9: 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: in solar glare at the Monday 00:00 UTC snapshot. Rises 03:55; sets 18:32 (45°N, local apparent solar time). Visual magnitude 3.3. The disk is 6.0% illuminated (crescent). It is 11.3° from the Sun, on its west side. Motion is retrograde at 0.340° per day in ecliptic longitude at the snapshot. Position reference: Alhena, 7.8° away. Station Jul 23 22:57 UTC: turns direct. Mercury: 7.8° from Alhena 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 5.0° above the horizon. Rises 08:18; sets 21:32 (45°N, local apparent solar time). Visual magnitude -4.2. The disk is 61.4% illuminated (gibbous). It is 44.0° from the Sun, on its east side. Motion is direct at 1.085° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 11.1° away. Venus: 11.1° from Regulus 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 11.4° above the horizon. Rises 11:00; sets 22:10 (45°N, local apparent solar time). Visual magnitude -9.4. The disk is 35.5% illuminated (waxing crescent). It is 73.0° from the Sun, on its east side. Motion is direct at 12.836° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 13.4° away. Moon: 13.4° from Zavijava 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 22.5° below the horizon. Rises 01:15; sets 16:38 (45°N, local apparent solar time). Visual magnitude 1.3. The disk is 94.2% illuminated (gibbous). It is 42.5° from the Sun, on its west side. Motion is direct at 0.690° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 7.2° away. Mars: 7.2° from Aldebaran in the Pathfinder.
Jupiter
Jupiter: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:02; sets 19:57 (45°N, local apparent solar time). Visual magnitude -1.8. The disk is 100.0% illuminated (nearly full). It is 7.0° from the Sun, on its east side. Motion is direct at 0.221° per day in ecliptic longitude at the snapshot. Position reference: Tarf, 10.8° away. Jupiter: 10.8° from Tarf 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 18.2° below the horizon. Rises 22:44; sets 11:17 (45°N, local apparent solar time). Visual magnitude 0.7. The disk is 99.7% illuminated (nearly full). It is 102.6° from the Sun, on its west side. Motion is direct at 0.012° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 16.3° away. Station Jul 26 19:56 UTC: turns retrograde. Saturn: 16.3° 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 23.3° below the horizon. Rises 00:40; sets 15:46 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 52.8° from the Sun, on its west side. Motion is direct at 0.040° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 7.7° away. Uranus: 7.7° 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 13.9° below the horizon. Rises 22:16; sets 10:25 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 112.9° from the Sun, on its west side. Motion is retrograde at 0.007° 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 23.5° below the horizon. Rises 01:48; sets 16:59 (45°N, local apparent solar time). Visual magnitude 9.0. The disk is 98.8% illuminated (gibbous). It is 36.4° from the Sun, on its west side. Motion is direct at 0.391° per day in ecliptic longitude at the snapshot. Position reference: Elnath, 7.4° away. Ceres: 7.4° from Elnath 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 6.1° above the horizon. Rises 20:13; sets 04:55 (45°N, local apparent solar time). Visual magnitude 14.4. The disk is 100.0% illuminated (nearly full). It is 171.7° from the Sun, on its west side. Motion is retrograde at 0.023° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.8° away. Pluto: 8.8° from Dabih in the Pathfinder.
Highlights
Mercury
In solar glare; magnitude 3.3; retrograde motion; 6.0% illuminated. Monday 00:00 UTC snapshot. Station Jul 23 22:57 UTC: turns direct. Mercury: 7.8° from Alhena in the Pathfinder.
Venus
Naked eye; magnitude -4.2; direct motion; 61.4% illuminated. Monday 00:00 UTC snapshot. Venus: 11.1° from Regulus in the Pathfinder.
Moon
Naked eye; magnitude -9.4; direct motion; 35.5% illuminated. Monday 00:00 UTC snapshot. Moon: 13.4° from Zavijava in the Pathfinder.
Mars
Naked eye; magnitude 1.3; direct motion; 94.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: 7.2° from Aldebaran in the Pathfinder.
Jupiter
In solar glare; magnitude -1.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Jupiter: 10.8° from Tarf in the Pathfinder.
Saturn
Naked eye; magnitude 0.7; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Jul 26 19:56 UTC: turns retrograde. Saturn: 16.3° 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. Uranus: 7.7° from Aldebaran in the Pathfinder.
Neptune
Telescope; magnitude 7.7; retrograde 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; 98.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: 7.4° from Elnath in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.4; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Pluto: 8.8° from Dabih in the Pathfinder.