ISO 2026-W15
Week begins: Monday, April 6, 2026
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Apr 6, 2026 | ♈ 18 | |
| Tue, Apr 7, 2026 | ♈ 19 | Finest NGC 41 / NGC 3079 · MCG 9-17-10 —  11 11.4 — Northern SpringC53 / NGC 3115 · Spindle Galaxy / Finest NGC 49 / NGC 3115 · Spindle Galaxy — 9 9.1 — Tropical Spring |
| Wed, Apr 8, 2026 | ♈ 20 | C74 / NGC 3132 · Southern Ring Nebula — 8 8.2 — Southern Springα Sex —  4 4.5 — Tropical SpringRegulus (α Leo) —  1 1.4 — Tropical Spring |
| Thu, Apr 9, 2026 | ♈ 21 | C109 / NGC 3195 — — Antarctic Spring |
| Fri, Apr 10, 2026 | ♈ 22 | 🌗 Last Quarter — 04:51:39 UTC |
| Sat, Apr 11, 2026 | ♈ 23 | C79 / NGC 3201 — 7 6.7 — Southern SpringFinest NGC 42 / NGC 3184 · MCG 7-21-37 — 10 10.4 — Northern Spring |
| Sun, Apr 12, 2026 | ♈ 24 | Algieba (Gam-1) — 2 2.0 — Tropical Spring |
Weekly Solar-System Ephemeris
Snapshot: Week begins April 6, 2026, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♈︎ 16°12′ β −0°00′ | ♐︎ 0°14′ β −5°07′ | ♓︎ 18°33′ β −1°58′ | ♉︎ 7°47′ β −0°14′ | ♓︎ 27°01′ β −1°01′ | ♋︎ 16°09′ β +0°22′ | ♈︎ 6°10′ β −2°08′ |
| Observing |  | -11.5 | 0.3 | -3.9 | ☉︎ | -2.2 | ☉︎ |
| Rise | 05:30 | 22:35 | 04:44 | 06:22 | 04:57 | 10:27 | 05:22 |
| Set | 18:30 | 07:00 | 15:58 | 20:22 | 16:45 | 01:54 | 17:31 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♉︎ 8°28′ β −4°34′ | ♉︎ 28°59′ β −0°10′ | ♈︎ 2°23′ β −1°19′ | ♒︎ 5°18′ β −3°58′ |
| Observing | 9.0 | 5.8 | ☉︎ | 14.6 |
| Rise | 06:47 | 07:20 | 05:10 | 03:11 |
| Set | 20:14 | 22:15 | 17:13 | 11:59 |
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 03:35:09 UTC
ISO 2026-W15 runs from April 6 through April 12. Venus and Ceres are separated by about 0.7° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot. Saturn and Neptune are separated by about 3.8° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.
Naked eye: 🌗 Last Quarter — 04:51:39 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Regulus, Algieba as the week’s fixed-sky framework.
Planets: Moon: Naked eye; magnitude -11.5; direct motion; 85.9% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Apr 11 10:22 UTC. Mercury: Naked eye; magnitude 0.3; direct motion; 53.1% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Venus: Naked eye; magnitude -3.9; direct motion; 93.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Ceres in ecliptic longitude Apr 06 19:21 UTC. Mars: In solar glare; magnitude 1.2; direct motion; 98.6% illuminated. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 9.0; direct motion; 99.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Venus in ecliptic longitude Apr 06 19:21 UTC. Jupiter: Naked eye; magnitude -2.2; direct motion; 99.1% illuminated. Monday 00:00 UTC snapshot. Saturn: In solar glare; magnitude 0.9; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Uranus: Binoculars; magnitude 5.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Neptune: In solar glare; magnitude 7.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Pluto: Substantial telescope; magnitude 14.6; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Apr 11 10:22 UTC.
Binoculars: Trace the charted figure of Sex, then identify α Sex at its plotted position.
Small telescope: MCG 9-17-10: consult its dedicated finder and observing story for equipment guidance; Spindle Galaxy: consult its dedicated finder and observing story for equipment guidance; Southern Ring Nebula: consult its dedicated finder and observing story for equipment guidance; NGC 3195: consult its dedicated finder and observing story for equipment guidance; NGC 3201: consult its dedicated finder and observing story for equipment guidance; MCG 7-21-37: 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 47.6° below the horizon. Rises 04:44; sets 15:58 (45°N, local apparent solar time). Visual magnitude 0.3. The disk is 53.1% illuminated (gibbous). It is 27.7° from the Sun, on its west side. Motion is direct at 1.083° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 11.0° away. Mercury: 11.0° from Fumalsamakah 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 6.7° below the horizon. Rises 06:22; sets 20:22 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 93.0% illuminated (gibbous). It is 21.6° from the Sun, on its east side. Motion is direct at 1.228° per day in ecliptic longitude at the snapshot. Position reference: Sheratan, 9.4° away. Ceres is 4.4° away at the snapshot. Conjunction with Ceres in ecliptic longitude Apr 06 19:21 UTC. Venus: 9.4° from Sheratan 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 15.4° below the horizon. Rises 22:35; sets 07:00 (45°N, local apparent solar time). Visual magnitude -11.5. The disk is 85.9% illuminated (waning gibbous). It is 135.7° from the Sun, on its west side. Motion is direct at 11.963° per day in ecliptic longitude at the snapshot. Position reference: Dschubba, 4.1° away. Conjunction with Pluto in ecliptic longitude Apr 11 10:22 UTC. Moon: 4.1° from Dschubba in the Pathfinder.
Mars
Mars: in solar glare at the Monday 00:00 UTC snapshot. Rises 04:57; sets 16:45 (45°N, local apparent solar time). Visual magnitude 1.2. The disk is 98.6% illuminated (gibbous). It is 19.2° from the Sun, on its west side. Motion is direct at 0.780° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 12.9° away. Mars: 12.9° from Fumalsamakah 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 49.1° above the horizon. Rises 10:27; sets 01:54 (45°N, local apparent solar time). Visual magnitude -2.2. The disk is 99.1% illuminated (nearly full). It is 89.9° from the Sun, on its east side. Motion is direct at 0.079° per day in ecliptic longitude at the snapshot. Position reference: Alhena, 9.7° away. Jupiter: 9.7° from Alhena in the Pathfinder.
Saturn
Saturn: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:22; sets 17:31 (45°N, local apparent solar time). Visual magnitude 0.9. The disk is 100.0% illuminated (nearly full). It is 10.3° from the Sun, on its west side. Motion is direct at 0.124° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 18.9° away. Neptune is 3.9° away at the snapshot. Saturn: 18.9° 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 11.6° above the horizon. Rises 07:20; sets 22:15 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 42.8° from the Sun, on its east side. Motion is direct at 0.046° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 12.3° away. Uranus: 12.3° from Aldebaran in the Pathfinder.
Neptune
Neptune: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:10; sets 17:13 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 13.9° from the Sun, on its west side. Motion is direct at 0.037° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 16.9° away. Saturn is 3.9° away at the snapshot. Neptune: 16.9° 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 8.3° below the horizon. Rises 06:47; sets 20:14 (45°N, local apparent solar time). Visual magnitude 9.0. The disk is 99.5% illuminated (nearly full). It is 22.7° from the Sun, on its east side. Motion is direct at 0.397° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 9.7° away. Venus is 4.4° away at the snapshot. Conjunction with Venus in ecliptic longitude Apr 06 19:21 UTC. Ceres: 9.7° from Alrescha 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 61.9° below the horizon. Rises 03:11; sets 11:59 (45°N, local apparent solar time). Visual magnitude 14.6. The disk is 100.0% illuminated (nearly full). It is 71.0° from the Sun, on its west side. Motion is direct at 0.014° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.6° away. Conjunction with Moon in ecliptic longitude Apr 11 10:22 UTC. Pluto: 8.6° from Dabih in the Pathfinder.
Highlights
Mercury
Naked eye; magnitude 0.3; direct motion; 53.1% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mercury: 11.0° from Fumalsamakah in the Pathfinder.
Venus
Naked eye; magnitude -3.9; direct motion; 93.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Ceres in ecliptic longitude Apr 06 19:21 UTC. Venus: 9.4° from Sheratan in the Pathfinder.
Moon
Naked eye; magnitude -11.5; direct motion; 85.9% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Apr 11 10:22 UTC. Moon: 4.1° from Dschubba in the Pathfinder.
Mars
In solar glare; magnitude 1.2; direct motion; 98.6% illuminated. Monday 00:00 UTC snapshot. Mars: 12.9° from Fumalsamakah in the Pathfinder.
Jupiter
Naked eye; magnitude -2.2; direct motion; 99.1% illuminated. Monday 00:00 UTC snapshot. Jupiter: 9.7° from Alhena in the Pathfinder.
Saturn
In solar glare; magnitude 0.9; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Saturn: 18.9° from Diphda in the Pathfinder.
Uranus
Binoculars; magnitude 5.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Uranus: 12.3° from Aldebaran in the Pathfinder.
Neptune
In solar glare; magnitude 7.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Neptune: 16.9° from Fumalsamakah in the Pathfinder.
Ceres
Telescope; magnitude 9.0; direct motion; 99.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Venus in ecliptic longitude Apr 06 19:21 UTC. Ceres: 9.7° from Alrescha in the Pathfinder.
Pluto
Substantial telescope; magnitude 14.6; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Apr 11 10:22 UTC. Pluto: 8.6° from Dabih in the Pathfinder.