ISO 2027-W41
Week begins: Monday, October 11, 2027
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Oct 11, 2027 | ♎ 19 | Sadalmelik (α Aqr) —  3 3.0 — Tropical Autumn |
| Tue, Oct 12, 2027 | ♎ 20 | Alnair (α Gru) — 2 1.7 — Southern Autumn |
| Wed, Oct 13, 2027 | ♎ 21 | |
| Thu, Oct 14, 2027 | ♎ 22 | C16 / NGC 7243 —  6 6.4 — Northern Autumn |
| Fri, Oct 15, 2027 | ♎ 23 | 🌕 Full Moon · Hunter's Moon — 13:47:00 UTC α Tuc — 3 2.9 — Southern Autumn |
| Sat, Oct 16, 2027 | ♎ 24 | β Lac —  4 4.4 — Northern Autumn — in the Milky Way |
| Sun, Oct 17, 2027 | ♎ 25 |
Weekly Solar-System Ephemeris
Snapshot: Week begins October 11, 2027, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♎︎ 17°27′ β +0°00′ | ♒︎ 25°31′ β +1°26′ | ♏︎ 4°12′ β −3°19′ | ♏︎ 3°31′ β +0°32′ | ♏︎ 26°29′ β −0°41′ | ♍︎ 16°18′ β +0°59′ | ♈︎ 24°58′ β −2°47′ |
| Observing |  | -11.2 | ☉︎ | ☉︎ | 1.4 | -1.7 | 0.1 |
| Rise | 06:22 | 15:30 | 08:01 | 07:47 | 09:53 | 03:38 | 18:01 |
| Set | 17:38 | 02:00 | 17:56 | 18:16 | 19:10 | 16:36 | 07:03 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♎︎ 2°27′ β +7°41′ | ♊︎ 9°41′ β −0°06′ | ♈︎ 4°54′ β −1°28′ | ♒︎ 4°46′ β −4°47′ |
| Observing | ☉︎ | 5.6 | 7.7 | 14.6 |
| Rise | 04:49 | 19:50 | 17:11 | 15:10 |
| Set | 17:45 | 11:05 | 05:21 | 23:48 |
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 21:34:51 UTC
ISO 2027-W41 runs from October 11 through October 17. Uranus is about 0.1° in ecliptic longitude from Aldebaran in Taurus. Mercury and Venus are separated by about 0.7° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.
Naked eye: 🌕 Full Moon · Hunter's Moon — 13:47:00 UTC. Bright moonlight favors prominent stars and planets while reducing contrast on faint deep-sky objects. Use Sadalmelik, Alnair, α Tuc as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -11.2; direct motion; 80.9% illuminated. Monday 00:00 UTC snapshot. Opposition in ecliptic longitude Oct 15 13:47 UTC. Conjunction with Saturn in ecliptic longitude Oct 15 18:37 UTC. Conjunction with Neptune in ecliptic longitude Oct 14 05:23 UTC. Mercury: In solar glare; magnitude 1.2; retrograde motion; 18.6% illuminated. Monday 00:00 UTC snapshot. Conjunction with Venus in ecliptic longitude Oct 11 09:32 UTC. Venus: In solar glare; magnitude -3.9; direct motion; 96.2% illuminated. Monday 00:00 UTC snapshot. Conjunction with Mercury in ecliptic longitude Oct 11 09:32 UTC. Mars: Naked eye; magnitude 1.4; direct motion; 95.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: In solar glare; magnitude 8.6; direct motion; 99.7% illuminated. Monday 00:00 UTC snapshot. Jupiter: Naked eye; magnitude -1.7; direct motion; 99.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.1; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 15 18:37 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 14 05:23 UTC. Pluto: Substantial telescope; magnitude 14.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot.
Binoculars: Trace Lacerta’s charted figure in the finder, then identify β Lac at its charted position.
Small telescope: NGC 7243: 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 08:01; sets 17:56 (45°N, local apparent solar time). Visual magnitude 1.2. The disk is 18.6% illuminated (crescent). It is 17.1° from the Sun, on its east side. Motion is retrograde at 0.439° per day in ecliptic longitude at the snapshot. Position reference: Spica, 10.0° away. Venus is 3.9° away at the snapshot. Conjunction with Venus in ecliptic longitude Oct 11 09:32 UTC. Mercury: 10.0° from Spica in the Pathfinder.
Venus
Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 07:47; sets 18:16 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 96.2% illuminated (gibbous). It is 16.1° from the Sun, on its east side. Motion is direct at 1.242° per day in ecliptic longitude at the snapshot. Position reference: Spica, 9.6° away. Mercury is 3.9° away at the snapshot. Conjunction with Mercury in ecliptic longitude Oct 11 09:32 UTC. Venus: 9.6° 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 33.1° above the horizon. Rises 15:30; sets 02:00 (45°N, local apparent solar time). Visual magnitude -11.2. The disk is 80.9% illuminated (waxing gibbous). It is 128.0° from the Sun, on its east side. Motion is direct at 11.889° per day in ecliptic longitude at the snapshot. Position reference: Sadalsuud, 7.4° away. Opposition in ecliptic longitude Oct 15 13:47 UTC. Conjunction with Saturn in ecliptic longitude Oct 15 18:37 UTC. Conjunction with Neptune in ecliptic longitude Oct 14 05:23 UTC. Moon: 7.4° from Sadalsuud 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 18.9° below the horizon. Rises 09:53; sets 19:10 (45°N, local apparent solar time). Visual magnitude 1.4. The disk is 95.2% illuminated (gibbous). It is 39.0° from the Sun, on its east side. Motion is direct at 0.706° per day in ecliptic longitude at the snapshot. Position reference: Dschubba, 6.6° away. Mars: 6.6° from Dschubba 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 36.4° below the horizon. Rises 03:38; sets 16:36 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 99.8% illuminated (nearly full). It is 31.2° from the Sun, on its west side. Motion is direct at 0.200° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 11.2° away. Jupiter: 11.2° from Zavijava 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 30.5° above the horizon. Rises 18:01; sets 07:03 (45°N, local apparent solar time). Visual magnitude 0.1. The disk is 100.0% illuminated (nearly full). It is 172.0° from the Sun, on its west side. Motion is retrograde at 0.079° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 7.9° away. Conjunction with Moon in ecliptic longitude Oct 15 18:37 UTC. Saturn: 7.9° 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 10.6° above the horizon. Rises 19:50; sets 11:05 (45°N, local apparent solar time). Visual magnitude 5.6. The disk is 100.0% illuminated (nearly full). It is 127.8° from the Sun, on its west side. Motion is retrograde at 0.021° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 5.4° away. Uranus: 5.4° 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 36.3° above the horizon. Rises 17:11; sets 05:21 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 167.4° from the Sun, on its east side. Motion is retrograde at 0.027° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 19.0° away. Conjunction with Moon in ecliptic longitude Oct 14 05:23 UTC. Neptune: 19.0° from Fumalsamakah in the Pathfinder.
Ceres
Ceres: in solar glare at the Monday 00:00 UTC snapshot. Rises 04:49; sets 17:45 (45°N, local apparent solar time). Visual magnitude 8.6. The disk is 99.7% illuminated (nearly full). It is 16.8° from the Sun, on its west side. Motion is direct at 0.456° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 8.5° away. Ceres: 8.5° from Zavijava 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 18.1° above the horizon. Rises 15:10; sets 23:48 (45°N, local apparent solar time). Visual magnitude 14.6. The disk is 100.0% illuminated (nearly full). It is 107.2° from the Sun, on its east side. Motion is retrograde at 0.003° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.4° away. Pluto: 9.4° from Dabih in the Pathfinder.
Highlights
Mercury
In solar glare; magnitude 1.2; retrograde motion; 18.6% illuminated. Monday 00:00 UTC snapshot. Conjunction with Venus in ecliptic longitude Oct 11 09:32 UTC. Mercury: 10.0° from Spica in the Pathfinder.
Venus
In solar glare; magnitude -3.9; direct motion; 96.2% illuminated. Monday 00:00 UTC snapshot. Conjunction with Mercury in ecliptic longitude Oct 11 09:32 UTC. Venus: 9.6° from Spica in the Pathfinder.
Moon
Naked eye; magnitude -11.2; direct motion; 80.9% illuminated. Monday 00:00 UTC snapshot. Opposition in ecliptic longitude Oct 15 13:47 UTC. Conjunction with Saturn in ecliptic longitude Oct 15 18:37 UTC. Conjunction with Neptune in ecliptic longitude Oct 14 05:23 UTC. Moon: 7.4° from Sadalsuud in the Pathfinder.
Mars
Naked eye; magnitude 1.4; direct motion; 95.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: 6.6° from Dschubba in the Pathfinder.
Jupiter
Naked eye; magnitude -1.7; direct motion; 99.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Jupiter: 11.2° from Zavijava in the Pathfinder.
Saturn
Naked eye; magnitude 0.1; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 15 18:37 UTC. Saturn: 7.9° from Alrescha in the Pathfinder.
Uranus
Binoculars; magnitude 5.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Uranus: 5.4° 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 14 05:23 UTC. Neptune: 19.0° from Fumalsamakah in the Pathfinder.
Ceres
In solar glare; magnitude 8.6; direct motion; 99.7% illuminated. Monday 00:00 UTC snapshot. Ceres: 8.5° from Zavijava in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Pluto: 9.4° from Dabih in the Pathfinder.