ISO 2027-W40
Week begins: Monday, October 4, 2027
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Oct 4, 2027 | ♎ 12 | M30 —  7 7.2 — Tropical Autumn |
| Tue, Oct 5, 2027 | ♎ 13 | Finest NGC 109 / NGC 7129 · Small Cluster Nebula — 12 11.5 — Northern AutumnHerschel's Garnet Star (μ Cephei) —  — Northern AutumnEnif (ε Peg) — Var 2 2.4 0.7–3.5 — Tropical Autumn |
| Wed, Oct 6, 2027 | ♎ 14 | |
| Thu, Oct 7, 2027 | ♎ 15 | 🌓 First Quarter — 11:47:24 UTC |
| Fri, Oct 8, 2027 | ♎ 16 | C19 / IC 5146 · Cocoon Nebula — 10 10.0 — Northern Autumn |
| Sat, Oct 9, 2027 | ♎ 17 | |
| Sun, Oct 10, 2027 | ♎ 18 |
Weekly Solar-System Ephemeris
Snapshot: Week begins October 4, 2027, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♎︎ 10°33′ β −0°00′ | ♐︎ 0°35′ β −4°44′ | ♏︎ 4°13′ β −3°30′ | ♎︎ 24°49′ β +0°48′ | ♏︎ 21°34′ β −0°37′ | ♍︎ 14°53′ β +0°58′ | ♈︎ 25°31′ β −2°46′ |
| Observing |  | -8.2 | 0.4 | ☉︎ | 1.4 | -1.7 | 0.2 |
| Rise | 06:11 | 10:57 | 08:28 | 07:26 | 09:52 | 03:56 | 18:28 |
| Set | 17:49 | 19:24 | 18:20 | 18:22 | 19:22 | 16:58 | 07:32 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♍︎ 29°15′ β +7°39′ | ♊︎ 9°49′ β −0°06′ | ♈︎ 5°05′ β −1°28′ | ♒︎ 4°48′ β −4°47′ |
| Observing | ☉︎ |  5.6 | 7.7 | 14.6 |
| Rise | 04:57 | 20:16 | 17:37 | 15:35 |
| Set | 18:04 | 11:32 | 05:48 | 00:14 |
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 21:14:38 UTC
ISO 2027-W40 runs from October 4 through October 10. Uranus is about 0.0° in ecliptic longitude from Aldebaran in Taurus. Venus is about 1.0° in ecliptic longitude from Spica in Virgo.
Naked eye: 🌓 First Quarter — 11:47:24 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Enif as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -8.2; direct motion; 18.1% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Oct 09 05:51 UTC. Mercury: Naked eye; magnitude 0.4; direct motion; 39.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Oct 07 14:36 UTC: turns retrograde. Venus: In solar glare; magnitude -3.9; direct motion; 97.0% illuminated. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 1.4; direct motion; 94.8% 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; 99.8% 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 0.2; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. 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. Pluto: Substantial telescope; magnitude 14.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 09 05:51 UTC.
Binoculars: No fixed-sky Calendar object is classified for binocular observing this week.
Small telescope: M30: consult its dedicated finder and observing story for equipment guidance; Small Cluster Nebula: consult its dedicated finder and observing story for equipment guidance; Cocoon 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 28.2° below the horizon. Rises 08:28; sets 18:20 (45°N, local apparent solar time). Visual magnitude 0.4. The disk is 39.5% illuminated (crescent). It is 23.9° from the Sun, on its east side. Motion is direct at 0.381° per day in ecliptic longitude at the snapshot. Position reference: Spica, 10.1° away. Station Oct 07 14:36 UTC: turns retrograde. Mercury: 10.1° from Spica in the Pathfinder.
Venus
Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 07:26; sets 18:22 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 97.0% illuminated (gibbous). It is 14.3° from the Sun, on its east side. Motion is direct at 1.243° per day in ecliptic longitude at the snapshot. Position reference: Spica, 2.9° away. Venus: 2.9° 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 15.5° below the horizon. Rises 10:57; sets 19:24 (45°N, local apparent solar time). Visual magnitude -8.2. The disk is 18.1% illuminated (waxing crescent). It is 50.2° from the Sun, on its east side. Motion is direct at 13.055° per day in ecliptic longitude at the snapshot. Position reference: Dschubba, 3.6° away. Conjunction with Pluto in ecliptic longitude Oct 09 05:51 UTC. Moon: 3.6° from Dschubba 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 17.1° below the horizon. Rises 09:52; sets 19:22 (45°N, local apparent solar time). Visual magnitude 1.4. The disk is 94.8% illuminated (gibbous). It is 41.0° from the Sun, on its east side. Motion is direct at 0.697° per day in ecliptic longitude at the snapshot. Position reference: Zubenelgenubi, 6.2° away. Mars: 6.2° from Zubenelgenubi 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 34.5° below the horizon. Rises 03:56; sets 16:58 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 99.8% illuminated (nearly full). It is 25.7° from the Sun, on its west side. Motion is direct at 0.206° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 12.7° away. Jupiter: 12.7° 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 26.0° above the horizon. Rises 18:28; sets 07:32 (45°N, local apparent solar time). Visual magnitude 0.2. The disk is 100.0% illuminated (nearly full). It is 164.8° from the Sun, on its west side. Motion is retrograde at 0.075° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 7.6° away. Saturn: 7.6° 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 6.3° above the horizon. Rises 20:16; sets 11:32 (45°N, local apparent solar time). Visual magnitude 5.6. The disk is 100.0% illuminated (nearly full). It is 120.7° from the Sun, on its west side. Motion is retrograde at 0.015° 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 32.9° above the horizon. Rises 17:37; sets 05:48 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 174.3° from the Sun, on its east side. Motion is retrograde at 0.028° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 19.2° away. Neptune: 19.2° from Fumalsamakah in the Pathfinder.
Ceres
Ceres: in solar glare at the Monday 00:00 UTC snapshot. Rises 04:57; sets 18:04 (45°N, local apparent solar time). Visual magnitude 8.6. The disk is 99.8% illuminated (nearly full). It is 13.6° from the Sun, on its west side. Motion is direct at 0.458° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 7.2° away. Ceres: 7.2° 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 19.6° above the horizon. Rises 15:35; sets 00:14 (45°N, local apparent solar time). Visual magnitude 14.6. The disk is 100.0% illuminated (nearly full). It is 114.2° from the Sun, on its east side. Motion is retrograde at 0.006° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.4° away. Conjunction with Moon in ecliptic longitude Oct 09 05:51 UTC. Pluto: 9.4° from Dabih in the Pathfinder.
Highlights
Mercury
Naked eye; magnitude 0.4; direct motion; 39.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Oct 07 14:36 UTC: turns retrograde. Mercury: 10.1° from Spica in the Pathfinder.
Venus
In solar glare; magnitude -3.9; direct motion; 97.0% illuminated. Monday 00:00 UTC snapshot. Venus: 2.9° from Spica in the Pathfinder.
Moon
Naked eye; magnitude -8.2; direct motion; 18.1% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Oct 09 05:51 UTC. Moon: 3.6° from Dschubba in the Pathfinder.
Mars
Naked eye; magnitude 1.4; direct motion; 94.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: 6.2° from Zubenelgenubi 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: 12.7° from Zavijava in the Pathfinder.
Saturn
Naked eye; magnitude 0.2; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Saturn: 7.6° 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. Neptune: 19.2° from Fumalsamakah in the Pathfinder.
Ceres
In solar glare; magnitude 8.6; direct motion; 99.8% illuminated. Monday 00:00 UTC snapshot. Ceres: 7.2° from Zavijava in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.6; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Oct 09 05:51 UTC. Pluto: 9.4° from Dabih in the Pathfinder.