ISO 2026-W43
Week begins: Monday, October 19, 2026
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Oct 19, 2026 | ♎ 27 | |
| Tue, Oct 20, 2026 | ♎ 28 | Finest NGC 3 / NGC 7331 · Deer Lick Group / C30 / NGC 7331 —  10 10.2 — Northern Autumn |
| Wed, Oct 21, 2026 | ♎ 29 | Tiaki (β Gru) —  Var 2 2.1 2.0–2.3 — Southern Autumn |
| Thu, Oct 22, 2026 | ♎ 30 | β Oct —  4 4.1 — Antarctic Autumn |
| Fri, Oct 23, 2026 | ♏ 1 | ♏ Sun enters Scorpio — 09:37:56 UTC |
| Sat, Oct 24, 2026 | ♏ 2 | |
| Sun, Oct 25, 2026 | ♏ 3 | C9 / Sh2-155 · Cave Nebula — 8 7.7 — Northern AutumnFomalhaut (α PsA) — 1 1.2 — Southern Autumn |
Weekly Solar-System Ephemeris
Snapshot: Week begins October 19, 2026, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♎︎ 25°37′ β −0°00′ | ♑︎ 29°10′ β −2°28′ | ♏︎ 19°21′ β −3°12′ | ♏︎ 3°48′ β −7°13′ | ♌︎ 11°49′ β +1°20′ | ♌︎ 22°34′ β +0°39′ | ♈︎ 10°11′ β −2°42′ |
| Observing |  | -10.2 | 0.1 | ☉︎ | 1.0 | -1.9 | 0.4 |
| Rise | 06:35 | 14:08 | 08:53 | 07:40 | 00:01 | 01:01 | 16:58 |
| Set | 17:25 | 22:57 | 18:04 | 17:02 | 14:46 | 15:10 | 05:15 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♋︎ 20°18′ β +1°38′ | ♊︎ 5°06′ β −0°09′ | ♈︎ 2°23′ β −1°25′ | ♒︎ 3°04′ β −4°17′ |
| Observing | 8.4 | 5.6 | 7.7 | 14.6 |
| Rise | 22:06 | 19:04 | 16:35 | 14:31 |
| Set | 13:41 | 10:11 | 04:37 | 23:10 |
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 2026-10-12 10:56:24 UTC
ISO 2026-W43 runs from October 19 through October 25. Uranus is about 4.7° in ecliptic longitude from Aldebaran in Taurus.
Naked eye: No principal lunar phase is listed this week. Check the Moon's position each night and favor darker hours for low-contrast targets. Use Tiaki, Fomalhaut as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -10.2; direct motion; 53.2% illuminated. Monday 00:00 UTC snapshot. Conjunction with Saturn in ecliptic longitude Oct 24 13:05 UTC. Conjunction with Neptune in ecliptic longitude Oct 23 23:54 UTC. Conjunction with Pluto in ecliptic longitude Oct 19 07:49 UTC. Mercury: Naked eye; magnitude 0.1; direct motion; 46.6% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Oct 24 07:12 UTC: turns retrograde. Venus: In solar glare; magnitude -4.1; retrograde motion; 1.7% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Oct 24 03:44 UTC. Mars: Naked eye; magnitude 1.0; direct motion; 89.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 8.4; direct motion; 96.4% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Jupiter: Naked eye; magnitude -1.9; direct motion; 99.3% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.4; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 24 13:05 UTC. Uranus: Binoculars; magnitude 5.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Neptune: Telescope; magnitude 7.7; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 23 23:54 UTC. Pluto: Substantial telescope; magnitude 14.6; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 19 07:49 UTC.
Binoculars: Trace the charted figure of Oct, then identify β Oct at its plotted position.
Small telescope: Deer Lick Group: consult its dedicated finder and observing story for equipment guidance; Cave Nebula: 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 30.3° below the horizon. Rises 08:53; sets 18:04 (45°N, local apparent solar time). Visual magnitude 0.1. The disk is 46.6% illuminated (crescent). It is 23.9° from the Sun, on its east side. Motion is direct at 0.571° per day in ecliptic longitude at the snapshot. Position reference: Zubenelgenubi, 5.2° away. Station Oct 24 07:12 UTC: turns retrograde. Mercury: 5.2° from Zubenelgenubi in the Pathfinder.
Venus
Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 07:40; sets 17:02 (45°N, local apparent solar time). Visual magnitude -4.1. The disk is 1.7% illuminated (crescent). It is 10.9° from the Sun, on its east side. Motion is retrograde at 0.554° per day in ecliptic longitude at the snapshot. Position reference: Spica, 10.9° away. Solar conjunction in ecliptic longitude Oct 24 03:44 UTC. Venus: 10.9° from Spica 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 14.3° above the horizon. Rises 14:08; sets 22:57 (45°N, local apparent solar time). Visual magnitude -10.2. The disk is 53.2% illuminated (waxing gibbous). It is 93.5° from the Sun, on its east side. Motion is direct at 11.941° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.8° away. Pluto is 4.3° away at the snapshot. Conjunction with Saturn in ecliptic longitude Oct 24 13:05 UTC. Conjunction with Neptune in ecliptic longitude Oct 23 23:54 UTC. Conjunction with Pluto in ecliptic longitude Oct 19 07:49 UTC. Moon: 8.8° from Dabih 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 22.7° below the horizon. Rises 00:01; sets 14:46 (45°N, local apparent solar time). Visual magnitude 1.0. The disk is 89.8% illuminated (gibbous). It is 73.8° from the Sun, on its west side. Motion is direct at 0.541° per day in ecliptic longitude at the snapshot. Position reference: Acubens, 6.8° away. Mars: 6.8° from Acubens 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 29.0° below the horizon. Rises 01:01; sets 15:10 (45°N, local apparent solar time). Visual magnitude -1.9. The disk is 99.3% illuminated (nearly full). It is 63.1° from the Sun, on its west side. Motion is direct at 0.149° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 7.6° away. Jupiter: 7.6° from Regulus 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 38.2° above the horizon. Rises 16:58; sets 05:15 (45°N, local apparent solar time). Visual magnitude 0.4. The disk is 100.0% illuminated (nearly full). It is 164.3° from the Sun, on its east side. Motion is retrograde at 0.074° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 19.4° away. Conjunction with Moon in ecliptic longitude Oct 24 13:05 UTC. Saturn: 19.4° from Diphda 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 18.5° above the horizon. Rises 19:04; sets 10:11 (45°N, local apparent solar time). Visual magnitude 5.6. The disk is 100.0% illuminated (nearly full). It is 140.5° from the Sun, on its west side. Motion is retrograde at 0.029° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 7.3° away. Uranus: 7.3° 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 39.8° above the horizon. Rises 16:35; sets 04:37 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 156.7° from the Sun, on its east side. Motion is retrograde at 0.025° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 17.0° away. Conjunction with Moon in ecliptic longitude Oct 23 23:54 UTC. Neptune: 17.0° 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 9.4° below the horizon. Rises 22:06; sets 13:41 (45°N, local apparent solar time). Visual magnitude 8.4. The disk is 96.4% illuminated (gibbous). It is 95.3° from the Sun, on its west side. Motion is direct at 0.198° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 6.0° away. Ceres: 6.0° from Pollux 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 15.2° above the horizon. Rises 14:31; sets 23:10 (45°N, local apparent solar time). Visual magnitude 14.6. The disk is 100.0% illuminated (nearly full). It is 97.4° from the Sun, on its east side. Motion is direct at 0.001° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.0° away. Moon is 4.3° away at the snapshot. Conjunction with Moon in ecliptic longitude Oct 19 07:49 UTC. Pluto: 9.0° from Dabih in the Pathfinder.
Highlights
Mercury
Naked eye; magnitude 0.1; direct motion; 46.6% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Oct 24 07:12 UTC: turns retrograde. Mercury: 5.2° from Zubenelgenubi in the Pathfinder.
Venus
In solar glare; magnitude -4.1; retrograde motion; 1.7% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Oct 24 03:44 UTC. Venus: 10.9° from Spica in the Pathfinder.
Moon
Naked eye; magnitude -10.2; direct motion; 53.2% illuminated. Monday 00:00 UTC snapshot. Conjunction with Saturn in ecliptic longitude Oct 24 13:05 UTC. Conjunction with Neptune in ecliptic longitude Oct 23 23:54 UTC. Conjunction with Pluto in ecliptic longitude Oct 19 07:49 UTC. Moon: 8.8° from Dabih in the Pathfinder.
Mars
Naked eye; magnitude 1.0; direct motion; 89.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: 6.8° from Acubens in the Pathfinder.
Jupiter
Naked eye; magnitude -1.9; direct motion; 99.3% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Jupiter: 7.6° from Regulus in the Pathfinder.
Saturn
Naked eye; magnitude 0.4; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 24 13:05 UTC. Saturn: 19.4° from Diphda in the Pathfinder.
Uranus
Binoculars; magnitude 5.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Uranus: 7.3° from Aldebaran in the Pathfinder.
Neptune
Telescope; magnitude 7.7; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 23 23:54 UTC. Neptune: 17.0° from Fumalsamakah in the Pathfinder.
Ceres
Telescope; magnitude 8.4; direct motion; 96.4% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: 6.0° from Pollux in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.6; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 19 07:49 UTC. Pluto: 9.0° from Dabih in the Pathfinder.