ISO 2027-W17
Week begins: Monday, April 26, 2027
Calendar
| Date | Zodiac day | Events |
|---|---|---|
| Mon, Apr 26, 2027 | ♉ 7 | M108 —  10 10.0 — Northern Springβ Crt —  4 4.5 — Tropical SpringM97 — 10 9.9 — Northern Spring |
| Tue, Apr 27, 2027 | ♉ 8 | Finest NGC 57 / NGC 3607 · MCG 3-29-20 — 11 10.9 — Tropical Spring |
| Wed, Apr 28, 2027 | ♉ 9 | 🌗 Last Quarter — 20:17:52 UTC M65 — 9 9.3 — Tropical SpringC40 / NGC 3626 — 11 10.9 — Tropical SpringM66 — 9 8.9 — Tropical SpringFinest NGC 58 / NGC 3628 · Arp 317 — 10 10.0 — Tropical Spring |
| Thu, Apr 29, 2027 | ♉ 10 | |
| Fri, Apr 30, 2027 | ♉ 11 | |
| Sat, May 1, 2027 | ♉ 12 | |
| Sun, May 2, 2027 | ♉ 13 | C97 / NGC 3766 — 5 5.3 — Southern SpringC100 / IC 2944 · Lambda Centauri Cluster — 5 4.5 — Southern Spring |
Weekly Solar-System Ephemeris
Snapshot: Week begins April 26, 2027, 00:00 UTC.
(-90° to +90°; defaults +45°, 21:00 LAT)
| Body | ☉︎ | ☽︎ | ☿︎ | ♀︎ | ♂︎ | ♃︎ | ♄︎ |
|---|---|---|---|---|---|---|---|
| Ecliptic | ♉︎ 5°33′ β −0°00′ | ♑︎ 4°35′ β −3°24′ | ♉︎ 2°14′ β −0°47′ | ♈︎ 7°04′ β −1°37′ | ♌︎ 24°11′ β +2°17′ | ♌︎ 17°15′ β +1°01′ | ♈︎ 19°57′ β −2°15′ |
| Observing |  |  -11.0 | ☉︎ | -3.9 | 0.2 | -2.2 | ☉︎ |
| Rise | 05:01 | 00:04 | 04:59 | 04:08 | 12:27 | 11:53 | 04:38 |
| Set | 18:59 | 08:10 | 18:38 | 16:24 | 02:45 | 02:21 | 17:30 |
Extended targets:
| Body | ⚳︎ | ♅︎ | ♆︎ | ♇︎ |
|---|---|---|---|---|
| Ecliptic | ♋︎ 21°06′ β +8°19′ | ♊︎ 3°59′ β −0°07′ | ♈︎ 5°15′ β −1°21′ | ♒︎ 7°09′ β −4°31′ |
| Observing | 8.6 | 5.8 | 7.8 | 14.6 |
| Rise | 08:58 | 06:22 | 04:03 | 02:06 |
| Set | 01:50 | 21:28 | 16:14 | 10:54 |
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 10:27:51 UTC
ISO 2027-W17 runs from April 26 through May 2. Venus and Neptune are separated by about 1.8° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.
Naked eye: 🌗 Last Quarter — 20:17:52 UTC. Moderate moonlight makes timing and local sky position important for faint targets. No fixed-sky Calendar object is classified for naked-eye observing this week.
Planets: Moon: Naked eye; magnitude -11.0; direct motion; 75.8% 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 28 17:55 UTC. Mercury: In solar glare; magnitude -1.9; direct motion; 99.2% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Apr 28 21:21 UTC. Venus: Naked eye; magnitude -3.9; direct motion; 87.6% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 0.2; direct motion; 90.8% illuminated. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 8.6; direct motion; 96.2% illuminated. Monday 00:00 UTC snapshot. Jupiter: Naked eye; magnitude -2.2; direct motion; 99.2% illuminated. Monday 00:00 UTC snapshot. Saturn: In solar glare; magnitude 0.7; 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: Telescope; magnitude 7.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. 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 28 17:55 UTC.
Binoculars: Trace Crater’s charted figure in the finder, then identify β Crt at its charted position.
Small telescope: M108: consult its dedicated finder and observing story for equipment guidance; Owl Nebula: consult its dedicated finder and observing story for equipment guidance; MCG 3-29-20: consult its dedicated finder and observing story for equipment guidance; M65: consult its dedicated finder and observing story for equipment guidance; NGC 3626: consult its dedicated finder and observing story for equipment guidance; M66: consult its dedicated finder and observing story for equipment guidance; Arp 317: consult its dedicated finder and observing story for equipment guidance; NGC 3766: consult its dedicated finder and observing story for equipment guidance; Lambda Centauri Cluster: 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 04:59; sets 18:38 (45°N, local apparent solar time). Visual magnitude -1.9. The disk is 99.2% illuminated (nearly full). It is 3.4° from the Sun, on its west side. Motion is direct at 2.097° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 8.6° away. Solar conjunction in ecliptic longitude Apr 28 21:21 UTC. Mercury: 8.6° from Alrescha 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 40.9° below the horizon. Rises 04:08; sets 16:24 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 87.6% illuminated (gibbous). It is 28.5° from the Sun, on its west side. Motion is direct at 1.213° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 19.6° away. Neptune is 1.8° away at the snapshot. Venus: 19.6° from Diphda 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 30.1° below the horizon. Rises 00:04; sets 08:10 (45°N, local apparent solar time). Visual magnitude -11.0. The disk is 75.8% illuminated (waning gibbous). It is 120.9° from the Sun, on its west side. Motion is direct at 11.998° per day in ecliptic longitude at the snapshot. Position reference: Kaus Australis, 7.7° away. Conjunction with Pluto in ecliptic longitude Apr 28 17:55 UTC. Moon: 7.7° from Kaus Australis 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 55.8° above the horizon. Rises 12:27; sets 02:45 (45°N, local apparent solar time). Visual magnitude 0.2. The disk is 90.8% illuminated (gibbous). It is 108.6° from the Sun, on its east side. Motion is direct at 0.247° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 6.3° away. Mars: 6.3° from Regulus 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 53.1° above the horizon. Rises 11:53; sets 02:21 (45°N, local apparent solar time). Visual magnitude -2.2. The disk is 99.2% illuminated (nearly full). It is 101.7° from the Sun, on its east side. Motion is direct at 0.040° per day in ecliptic longitude at the snapshot. Position reference: Acubens, 6.9° away. Jupiter: 6.9° from Acubens in the Pathfinder.
Saturn
Saturn: in solar glare at the Monday 00:00 UTC snapshot. Rises 04:38; sets 17:30 (45°N, local apparent solar time). Visual magnitude 0.7. The disk is 100.0% illuminated (nearly full). It is 15.8° from the Sun, on its west side. Motion is direct at 0.123° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 11.9° away. Saturn: 11.9° 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 3.7° above the horizon. Rises 06:22; sets 21:28 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 28.4° from the Sun, on its east side. Motion is direct at 0.053° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 8.2° away. Uranus: 8.2° 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 41.9° below the horizon. Rises 04:03; sets 16:14 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 30.3° from the Sun, on its west side. Motion is direct at 0.034° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 19.3° away. Venus is 1.8° away at the snapshot. Neptune: 19.3° 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 45.5° above the horizon. Rises 08:58; sets 01:50 (45°N, local apparent solar time). Visual magnitude 8.6. The disk is 96.2% illuminated (gibbous). It is 75.7° from the Sun, on its east side. Motion is direct at 0.312° per day in ecliptic longitude at the snapshot. Position reference: Castor, 1.8° away. Ceres: 1.8° from Castor 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 52.4° below the horizon. Rises 02:06; sets 10:54 (45°N, local apparent solar time). Visual magnitude 14.6. The disk is 100.0% illuminated (nearly full). It is 88.4° from the Sun, on its west side. Motion is direct at 0.006° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.5° away. Conjunction with Moon in ecliptic longitude Apr 28 17:55 UTC. Pluto: 9.5° from Dabih in the Pathfinder.
Highlights
Mercury
In solar glare; magnitude -1.9; direct motion; 99.2% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Apr 28 21:21 UTC. Mercury: 8.6° from Alrescha in the Pathfinder.
Venus
Naked eye; magnitude -3.9; direct motion; 87.6% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Venus: 19.6° from Diphda in the Pathfinder.
Moon
Naked eye; magnitude -11.0; direct motion; 75.8% 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 28 17:55 UTC. Moon: 7.7° from Kaus Australis in the Pathfinder.
Mars
Naked eye; magnitude 0.2; direct motion; 90.8% illuminated. Monday 00:00 UTC snapshot. Mars: 6.3° from Regulus in the Pathfinder.
Jupiter
Naked eye; magnitude -2.2; direct motion; 99.2% illuminated. Monday 00:00 UTC snapshot. Jupiter: 6.9° from Acubens in the Pathfinder.
Saturn
In solar glare; magnitude 0.7; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Saturn: 11.9° from Alrescha in the Pathfinder.
Uranus
Binoculars; magnitude 5.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Uranus: 8.2° from Aldebaran in the Pathfinder.
Neptune
Telescope; magnitude 7.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Neptune: 19.3° from Fumalsamakah in the Pathfinder.
Ceres
Telescope; magnitude 8.6; direct motion; 96.2% illuminated. Monday 00:00 UTC snapshot. Ceres: 1.8° from Castor 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 28 17:55 UTC. Pluto: 9.5° from Dabih in the Pathfinder.