Star Almanack
Alexander Ferrari Miller

ISO 2027-W32

Week begins: Monday, August 9, 2027

Notation:

Calendar

DateZodiac dayEvents
Mon, Aug 9, 2027♌ 18
🌓 First Quarter — 04:54:11 UTC
Tue, Aug 10, 2027♌ 19
M24 — Telescope 5 — Tropical Summer
M16 — Telescope 6 — Tropical Summer
M18 — Telescope 8 — Tropical Summer
Wed, Aug 11, 2027♌ 20
M17 — Telescope 7 — Tropical Summer
Kaus Australis (ε Sgr) — Naked eye 2 — Southern Summer
Thu, Aug 12, 2027♌ 21
M28 — Telescope 7 — Southern Summer
α Tel — Naked eye 3 — Southern Summer
Finest NGC 93 / NGC 6633 · Collinder 380 — Telescope 6 — Tropical Summer
Fri, Aug 13, 2027♌ 22
M69 — Telescope 8 — Southern Summer
M25 — Telescope 7 — Tropical Summer
Sat, Aug 14, 2027♌ 23
α Sct — Binoculars 4 — Tropical Summer
Sun, Aug 15, 2027♌ 24
M22 — Telescope 5 — Southern Summer
Vega (α Lyr) / Vega (α Lyrae) — Naked eye 0 — Northern Summer

Weekly Solar-System Ephemeris

Snapshot: Week begins August 9, 2027, 00:00 UTC.

(-90° to +90°; defaults +45°, 21:00 LAT)

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♌︎ 16°13′
β −0°00′		♏︎ 13°47′
β −5°17′		♌︎ 13°31′
β +1°39′		♌︎ 15°23′
β +1°11′		♎︎ 14°43′
β +0°02′		♍︎ 2°53′
β +0°54′		♈︎ 27°53′
β −2°35′
ObservingNightNaked eye -10.0☉︎☉︎Naked eye 1.3☉︎Naked eye 0.4
Rise04:4812:5004:3004:4109:5906:1621:56
Set19:1221:5819:1319:1521:2019:5611:09

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♍︎ 3°33′
β +7°36′		♊︎ 9°22′
β −0°06′		♈︎ 6°25′
β −1°26′		♒︎ 5°43′
β −4°48′
Observing☉︎Binoculars 5.7Telescope 7.7TelescopeTelescope 14.5
Rise06:0223:3821:0419:02
Set20:3514:5409:1903:43

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.

Notation:

Planet Finder

Planet Finder — Greek / Symbols
Greek / Symbols
Planet Finder — English
English
Planet Finder — Mixed Learner
Mixed Learner

Sky Notes

Kilroy: Sky Notes · generated 2026-10-22 18:16:53 UTC

View:

ISO 2027-W32 runs from August 9 through August 15. Uranus is about 0.4° in ecliptic longitude from Aldebaran in Taurus. Ceres and Jupiter are separated by about 0.7° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.

Naked eye: 🌓 First Quarter — 04:54:11 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Kaus Australis, α Tel, Vega as the week’s fixed-sky framework.

Kaus Australis: The Bright Star of Sagittarius' Teapot — A detailed look at one of the prominent stars in the Sagittarius constellation, renowned for its brightness and cultural significance.

Alpha Telescopii: A Bright Beacon in the Tel Constellation — Discover the characteristics and significance of Alpha Tel, a notable star in Tel, and its place in our celestial understanding.

Vega: The Bright Star of Lyra and the Summer Triangle — An illuminating guide to Vega, a key stellar landmark in the summer sky and the famed centerpiece of the Summer Triangle.

Planets: Moon: Naked eye; magnitude -10.0; direct motion; 48.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Pluto in ecliptic longitude Aug 15 17:38 UTC. Mercury: In solar glare; magnitude -2.0; direct motion; 99.2% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Aug 11 11:02 UTC. Conjunction with Venus in ecliptic longitude Aug 11 06:29 UTC. Venus: In solar glare; magnitude -3.9; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Aug 12 00:20 UTC. Conjunction with Mercury in ecliptic longitude Aug 11 06:29 UTC. Mars: Naked eye; magnitude 1.3; direct motion; 91.6% illuminated. Monday 00:00 UTC snapshot. Ceres: In solar glare; magnitude 8.6; direct motion; 99.6% illuminated. Monday 00:00 UTC snapshot. Jupiter: In solar glare; magnitude -1.7; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.4; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Station Aug 09 18:06 UTC: turns retrograde. 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. Below the horizon at 21:00 local apparent solar time, 45°N. 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 Aug 15 17:38 UTC.

Binoculars: Trace Scutum’s diamond-shaped figure in the finder, then identify α Sct at its charted position.

Alpha Scuti: The Bright Beacon of the Scutum Constellation — An enduring stellar landmark, Alpha Scuti offers a glimpse into the majestic complexity of our celestial neighborhood.

Small telescope: Eagle Nebula: consult its dedicated finder and observing story for equipment guidance; M18: consult its dedicated finder and observing story for equipment guidance; Omega Nebula: consult its dedicated finder and observing story for equipment guidance; M28: consult its dedicated finder and observing story for equipment guidance; Collinder 380: consult its dedicated finder and observing story for equipment guidance; M69: consult its dedicated finder and observing story for equipment guidance; M25: consult its dedicated finder and observing story for equipment guidance; Sagittarius Cluster: consult its dedicated finder and observing story for equipment guidance

Unearthing the Mysteries of the Eagle Nebula in Serpens — A detailed look at this iconic celestial cloud, its structure, and its significance to astronomy.

M18: The Sparkling Jewel of Sagittarius — An open cluster that offers a glimpse into stellar formation within our galaxy.

Omega Nebula: A Celestial Nursery in Sagittarius — Discover the beauty and significance of the Omega Nebula, a prominent dark nebula within the constellation Sagittarius.

M28: A Dense Glimpse into the Heart of Sagittarius — Discover the enduring allure of this ancient globular cluster nestled in the constellation Sagittarius.

Exploring Collinder 380: A Promising Open Cluster in Ophiuchus — An overview of Collinder 380, its location, and significance within the constellation of Ophiuchus.

M69: A Compact Globular Cluster in Sagittarius — Exploring the characteristics and significance of Messier 69 in the constellation Sagittarius.

M25: The Cosmic Necklace in Sagittarius — An enduring celestial gem, M25 is a magnificent open cluster nestled in the heart of the Sagittarius constellation.

Sagittarius Cluster: A Timeless Globular Treasure in the Heart of the Milky Way — An enduring marvel of the night sky, the Sagittarius Cluster invites skywatchers to explore its ancient stellar population and cosmic significance.

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 04:30; sets 19:13 (45°N, local apparent solar time). Visual magnitude -2.0. The disk is 99.2% illuminated (nearly full). It is 3.2° from the Sun, on its west side. Motion is direct at 2.071° per day in ecliptic longitude at the snapshot. Position reference: Acubens, 6.8° away. Venus is 1.9° away at the snapshot. Solar conjunction in ecliptic longitude Aug 11 11:02 UTC. Conjunction with Venus in ecliptic longitude Aug 11 06:29 UTC. Mercury: 6.8° from Acubens in the Pathfinder.

Venus

Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 04:41; sets 19:15 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 100.0% illuminated (nearly full). It is 1.4° from the Sun, on its west side. Motion is direct at 1.235° per day in ecliptic longitude at the snapshot. Position reference: Acubens, 6.4° away. Mercury is 1.9° away at the snapshot. Solar conjunction in ecliptic longitude Aug 12 00:20 UTC. Conjunction with Mercury in ecliptic longitude Aug 11 06:29 UTC. Venus: 6.4° from Acubens 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 7.8° above the horizon. Rises 12:50; sets 21:58 (45°N, local apparent solar time). Visual magnitude -10.0. The disk is 48.0% illuminated (waxing crescent). It is 87.6° from the Sun, on its east side. Motion is direct at 12.953° per day in ecliptic longitude at the snapshot. Position reference: Zubenelgenubi, 5.9° away. Conjunction with Pluto in ecliptic longitude Aug 15 17:38 UTC. Moon: 5.9° 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 3.0° above the horizon. Rises 09:59; sets 21:20 (45°N, local apparent solar time). Visual magnitude 1.3. The disk is 91.6% illuminated (gibbous). It is 58.5° from the Sun, on its east side. Motion is direct at 0.616° per day in ecliptic longitude at the snapshot. Position reference: Spica, 9.7° away. Mars: 9.7° from Spica in the Pathfinder.

Jupiter

Jupiter: in solar glare at the Monday 00:00 UTC snapshot. Rises 06:16; sets 19:56 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 99.9% illuminated (nearly full). It is 16.7° from the Sun, on its east side. Motion is direct at 0.212° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 2.7° away. Jupiter: 2.7° 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 10.1° below the horizon. Rises 21:56; sets 11:09 (45°N, local apparent solar time). Visual magnitude 0.4. The disk is 99.7% illuminated (nearly full). It is 108.3° from the Sun, on its west side. Motion is direct at 0.001° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 6.7° away. Station Aug 09 18:06 UTC: turns retrograde. Saturn: 6.7° 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 19.2° below the horizon. Rises 23:38; sets 14:54 (45°N, local apparent solar time). Visual magnitude 5.7. The disk is 99.9% illuminated (nearly full). It is 66.8° from the Sun, on its west side. Motion is direct at 0.030° 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 1.2° below the horizon. Rises 21:04; sets 09:19 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 129.8° from the Sun, on its west side. Motion is retrograde at 0.015° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 19.6° away. Neptune: 19.6° from Diphda in the Pathfinder.

Ceres

Ceres: in solar glare at the Monday 00:00 UTC snapshot. Rises 06:02; sets 20:35 (45°N, local apparent solar time). Visual magnitude 8.6. The disk is 99.6% illuminated (nearly full). It is 18.9° from the Sun, on its east side. Motion is direct at 0.454° per day in ecliptic longitude at the snapshot. Position reference: Algieba, 3.7° away. Ceres: 3.7° from Algieba 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 14.1° above the horizon. Rises 19:02; sets 03:43 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 168.5° from the Sun, on its east side. Motion is retrograde at 0.023° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.5° away. Conjunction with Moon in ecliptic longitude Aug 15 17:38 UTC. Pluto: 9.5° from Dabih in the Pathfinder.