ISO 2027-W36
Week begins: Monday, September 6, 2027
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Sep 6, 2027 | ♍ 15 | M27 —  7 7.4 — Tropical Summer |
| Tue, Sep 7, 2027 | ♍ 16 | 🌓 First Quarter — 18:31:20 UTC |
| Wed, Sep 8, 2027 | ♍ 17 | M75 — 9 8.5 — Tropical SummerTabby's Star (KIC 8462852) — — Northern Summer |
| Thu, Sep 9, 2027 | ♍ 18 | |
| Fri, Sep 10, 2027 | ♍ 19 | C27 / NGC 6888 · Crescent Nebula / Finest NGC 98 / NGC 6888 · Crescent Nebula — 8 7.5 — Northern SummerC37 / NGC 6885 — 6 5.7 — Northern Summer |
| Sat, Sep 11, 2027 | ♍ 20 | α1 Cap —  4 4.2 — Tropical Summer |
| Sun, Sep 12, 2027 | ♍ 21 | Algedi (α2 Cap) — 4 3.6 — Tropical SummerDabih (β Cap) —  3 3.1 — Tropical Summer |
Weekly Solar-System Ephemeris
Snapshot: Week begins September 6, 2027, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♍︎ 13°12′ β −0°00′ | ♏︎ 22°28′ β −5°07′ | ♎︎ 3°50′ β −0°17′ | ♍︎ 20°03′ β +1°24′ | ♏︎ 2°34′ β −0°19′ | ♍︎ 8°56′ β +0°56′ | ♈︎ 27°15′ β −2°42′ |
| Observing |  | -9.2 | -0.2 | ☉︎ | 1.4 | ☉︎ | 0.3 |
| Rise | 05:28 | 11:54 | 07:19 | 06:03 | 09:51 | 05:05 | 20:12 |
| Set | 18:32 | 20:39 | 19:12 | 18:52 | 20:15 | 18:26 | 09:22 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♍︎ 16°22′ β +7°35′ | ♊︎ 9°55′ β −0°06′ | ♈︎ 5°51′ β −1°27′ | ♒︎ 5°08′ β −4°48′ |
| Observing | ☉︎ | 5.7 | 7.7 | 14.5 |
| Rise | 05:29 | 21:57 | 19:19 | 17:17 |
| Set | 19:18 | 13:13 | 07:32 | 01:56 |
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 19:43:31 UTC
ISO 2027-W36 runs from September 6 through September 12. Uranus is about 0.1° in ecliptic longitude from Aldebaran in Taurus. Venus and Ceres are separated by about 3.7° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.
Naked eye: 🌓 First Quarter — 18:31:20 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Dabih as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -9.2; direct motion; 32.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Sep 11 23:05 UTC. Mercury: Naked eye; magnitude -0.2; direct motion; 81.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Venus: In solar glare; magnitude -3.9; direct motion; 99.3% illuminated. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 1.4; direct motion; 93.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Ceres: In solar glare; magnitude 8.5; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Sep 12 04:49 UTC. Jupiter: In solar glare; magnitude -1.7; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.3; retrograde motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Uranus: Binoculars; magnitude 5.7; direct motion; 99.9% 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. Monday 00:00 UTC snapshot. Pluto: Substantial telescope; magnitude 14.5; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Sep 11 23:05 UTC.
Binoculars: Trace Capricornus’s charted figure in the finder, then identify Alpha1 Cap at its charted position. Trace Capricornus’s closed figure in the finder, then identify Algedi at its charted position.
Small telescope: Dumbbell Nebula: consult its dedicated finder and observing story for equipment guidance; M75: consult its dedicated finder and observing story for equipment guidance; Crescent Nebula: consult its dedicated finder and observing story for equipment guidance; NGC 6885: 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 19.3° below the horizon. Rises 07:19; sets 19:12 (45°N, local apparent solar time). Visual magnitude -0.2. The disk is 81.5% illuminated (gibbous). It is 20.6° from the Sun, on its east side. Motion is direct at 1.494° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 6.3° away. Mercury: 6.3° from Zavijava in the Pathfinder.
Venus
Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 06:03; sets 18:52 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 99.3% illuminated (nearly full). It is 7.0° from the Sun, on its east side. Motion is direct at 1.241° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 7.5° away. Venus: 7.5° from Zavijava 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 3.8° below the horizon. Rises 11:54; sets 20:39 (45°N, local apparent solar time). Visual magnitude -9.2. The disk is 32.5% illuminated (waxing crescent). It is 69.3° from the Sun, on its east side. Motion is direct at 13.019° per day in ecliptic longitude at the snapshot. Position reference: Zubenelgenubi, 8.9° away. Conjunction with Pluto in ecliptic longitude Sep 11 23:05 UTC. Moon: 8.9° from Zubenelgenubi 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 8.3° below the horizon. Rises 09:51; sets 20:15 (45°N, local apparent solar time). Visual magnitude 1.4. The disk is 93.2% illuminated (gibbous). It is 49.4° from the Sun, on its east side. Motion is direct at 0.659° per day in ecliptic longitude at the snapshot. Position reference: Spica, 8.5° away. Mars: 8.5° from Spica in the Pathfinder.
Jupiter
Jupiter: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:05; sets 18:26 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 100.0% illuminated (nearly full). It is 4.4° from the Sun, on its west side. Motion is direct at 0.217° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 8.7° away. Jupiter: 8.7° 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 7.8° above the horizon. Rises 20:12; sets 09:22 (45°N, local apparent solar time). Visual magnitude 0.3. The disk is 99.9% illuminated (nearly full). It is 135.9° from the Sun, on its west side. Motion is retrograde at 0.045° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 6.8° away. Saturn: 6.8° 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 8.5° below the horizon. Rises 21:57; sets 13:13 (45°N, local apparent solar time). Visual magnitude 5.7. The disk is 99.9% illuminated (nearly full). It is 93.3° from the Sun, on its west side. Motion is direct at 0.008° 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 17.0° above the horizon. Rises 19:19; sets 07:32 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 157.3° from the Sun, on its west side. Motion is retrograde at 0.025° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 19.5° away. Neptune: 19.5° from Diphda in the Pathfinder.
Ceres
Ceres: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:29; sets 19:18 (45°N, local apparent solar time). Visual magnitude 8.5. The disk is 99.9% illuminated (nearly full). It is 8.2° from the Sun, on its east side. Motion is direct at 0.460° per day in ecliptic longitude at the snapshot. Position reference: Denebola, 7.3° away. Solar conjunction in ecliptic longitude Sep 12 04:49 UTC. Ceres: 7.3° from Denebola 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 20.8° above the horizon. Rises 17:17; sets 01:56 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 141.7° from the Sun, on its east side. Motion is retrograde at 0.017° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.4° away. Conjunction with Moon in ecliptic longitude Sep 11 23:05 UTC. Pluto: 9.4° from Dabih in the Pathfinder.
Highlights
Mercury
Naked eye; magnitude -0.2; direct motion; 81.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mercury: 6.3° from Zavijava in the Pathfinder.
Venus
In solar glare; magnitude -3.9; direct motion; 99.3% illuminated. Monday 00:00 UTC snapshot. Venus: 7.5° from Zavijava in the Pathfinder.
Moon
Naked eye; magnitude -9.2; direct motion; 32.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Sep 11 23:05 UTC. Moon: 8.9° from Zubenelgenubi in the Pathfinder.
Mars
Naked eye; magnitude 1.4; direct motion; 93.2% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: 8.5° from Spica in the Pathfinder.
Jupiter
In solar glare; magnitude -1.7; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Jupiter: 8.7° from Regulus in the Pathfinder.
Saturn
Naked eye; magnitude 0.3; retrograde motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Saturn: 6.8° from Alrescha in the Pathfinder.
Uranus
Binoculars; magnitude 5.7; direct motion; 99.9% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. 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: 19.5° from Diphda in the Pathfinder.
Ceres
In solar glare; magnitude 8.5; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Sep 12 04:49 UTC. Ceres: 7.3° from Denebola in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.5; retrograde motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Sep 11 23:05 UTC. Pluto: 9.4° from Dabih in the Pathfinder.