Star Almanack
Alexander Ferrari Miller

ISO 2027-W35

Week begins: Monday, August 30, 2027

Notation:

Calendar

DateZodiac dayEvents
Mon, Aug 30, 2027♍ 8
Tue, Aug 31, 2027♍ 9
🌑 New Moon — 17:41:11 UTC
Wed, Sep 1, 2027♍ 10
M55 — Telescope 6 — Southern Summer
Sham (α Sge) — Binoculars 4 — Tropical Summer
β Sge — Binoculars 4 — Tropical Summer
Finest NGC 96 / NGC 6819 · Collinder 403 — Telescope 10 — Northern Summer
Thu, Sep 2, 2027♍ 11
Finest NGC 104 / NGC 6818 · Little Gem — Telescope 10 — Tropical Summer
C15 / NGC 6826 · Blinking Planetary Nebula / Finest NGC 97 / NGC 6826 · Blinking Planetary — Telescope 10 — Northern Summer
C57 / NGC 6822 · Barnard's Galaxy — Telescope 9 — Tropical Summer
Fri, Sep 3, 2027♍ 12
Sat, Sep 4, 2027♍ 13
Altair (α Aql) — Naked eye 1 — Tropical Summer
Sun, Sep 5, 2027♍ 14
M71 — Telescope 8 — Tropical Summer
Alshain (β Aql) — Binoculars 4 — Tropical Summer

Weekly Solar-System Ephemeris

Snapshot: Week begins August 30, 2027, 00:00 UTC.

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

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♍︎ 6°25′
β −0°00′		♌︎ 12°00′
β −0°03′		♍︎ 22°51′
β +0°36′		♍︎ 11°22′
β +1°25′		♎︎ 28°00′
β −0°14′		♍︎ 7°24′
β +0°55′		♈︎ 27°32′
β −2°41′
ObservingNightNaked eye -6.5☉︎☉︎Naked eye 1.3☉︎Naked eye 0.3
Rise05:1703:0906:4505:4209:5205:2220:38
Set18:4317:4119:1918:5920:3018:4809:49

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♍︎ 13°09′
β +7°35′		♊︎ 9°50′
β −0°06′		♈︎ 6°01′
β −1°27′		♒︎ 5°16′
β −4°48′
Observing☉︎Binoculars 5.7Telescope 7.7TelescopeTelescope 14.5
Rise05:3722:2219:4517:43
Set19:3713:3807:5902:22

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 19:22:21 UTC

View:

ISO 2027-W35 runs from August 30 through September 5. Uranus is about 0.0° in ecliptic longitude from Aldebaran in Taurus. Venus and Ceres are separated by about 1.8° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.

Naked eye: 🌑 New Moon — 17:41:11 UTC. The dark Moon favors faint targets and extended star fields. Use Altair as the week’s fixed-sky framework.

Altair — the star that could not keep its shape — A bright star seems the simplest thing in the sky: a point of light, steady and round in the imagination. Altair, the brightest star in Aquila, defeated that assumption. Astronomers found that its equator sticks out, its poles shine more intensely, and the difference can actually be measured from Earth.

Planets: Moon: Naked eye; magnitude -6.5; direct motion; 4.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Aug 31 17:41 UTC. Conjunction with Mercury in ecliptic longitude Sep 02 01:28 UTC. Conjunction with Venus in ecliptic longitude Sep 01 03:10 UTC. Conjunction with Mars in ecliptic longitude Sep 04 10:25 UTC. Conjunction with Ceres in ecliptic longitude Sep 01 03:21 UTC. Conjunction with Jupiter in ecliptic longitude Aug 31 17:10 UTC. Mercury: In solar glare; magnitude -0.5; direct motion; 87.7% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Sep 02 01:28 UTC. Venus: In solar glare; magnitude -3.9; direct motion; 99.6% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Sep 01 03:10 UTC. Conjunction with Ceres in ecliptic longitude Sep 01 06:46 UTC. Mars: Naked eye; magnitude 1.3; direct motion; 92.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Sep 04 10:25 UTC. Ceres: In solar glare; magnitude 8.5; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Sep 01 03:21 UTC. Conjunction with Venus in ecliptic longitude Sep 01 06:46 UTC. Jupiter: In solar glare; magnitude -1.7; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Aug 31 07:29 UTC. Conjunction with Moon in ecliptic longitude Aug 31 17:10 UTC. Saturn: Naked eye; magnitude 0.3; retrograde motion; 99.8% 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.

Binoculars: Trace Sagitta’s charted figure in the finder, then identify Sham at its charted position. Trace Sagitta’s charted figure in the finder, then identify β Sge at its charted position. Trace Aquila’s charted figure in the finder, then identify Alshain at its charted position.

Sham: A Bright Star in the Constellation Sagitta — An overview of Sham, a notable star distinguished by its position and characteristics in Sagitta.

Beta Sge: A Bright Beacon in the Southern Sky — An overview of Beta Sge, its characteristics, and its place in the constellation of Sagitta.

Alshain: The Rising Star of Aquila — Discover the characteristics and significance of the star Alshain, a notable figure in the constellation Aquila.

Small telescope: M55: consult its dedicated finder and observing story for equipment guidance; Collinder 403: consult its dedicated finder and observing story for equipment guidance; Little Gem: consult its dedicated finder and observing story for equipment guidance; Blinking Planetary Nebula: consult its dedicated finder and observing story for equipment guidance; Barnard's Galaxy: consult its dedicated finder and observing story for equipment guidance; M71: consult its dedicated finder and observing story for equipment guidance

M55: A Bright Globular Cluster in Sagittarius — Discover the characteristics and significance of M55, a prominent globular cluster in the constellation Sagittarius.

Collinder 403: A Stellar Cluster in Cygnus's Canvas — An overview of the intriguing open cluster located in the northern constellation of Cygnus, inviting both amateur and seasoned astronomers to explore its celestial beauty.

The Little Gem: A Delicate Planetary Nebula in Sagittarius — An enduring showcase of cosmic beauty and stellar evolution, the Little Gem offers astronomers a glimpse into the future of sun-like stars.

The Blinking Planetary Nebula: A Celestial Enigma in Cygnus — An enduring object of fascination, this planetary nebula offers a glimpse into the lifecycle of stars and the intricate beauty of the cosmos.

Barnard's Galaxy: A Hidden Spiral in Sagittarius — An overview of the intriguing, diminutive galaxy in the heart of Sagittarius, known for its role in the cosmic tapestry.

M71: The Compact Globular Cluster of Sagitta — Discover the intriguing characteristics of one of the galaxy's dense stellar assemblies in the constellation Sagitta.

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 06:45; sets 19:19 (45°N, local apparent solar time). Visual magnitude -0.5. The disk is 87.7% illuminated (gibbous). It is 16.4° from the Sun, on its east side. Motion is direct at 1.642° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 4.7° away. Conjunction with Moon in ecliptic longitude Sep 02 01:28 UTC. Mercury: 4.7° from Zavijava in the Pathfinder.

Venus

Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:42; sets 18:59 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 99.6% illuminated (nearly full). It is 5.1° from the Sun, on its east side. Motion is direct at 1.240° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 11.2° away. Jupiter is 4.0° away at the snapshot. Conjunction with Moon in ecliptic longitude Sep 01 03:10 UTC. Conjunction with Ceres in ecliptic longitude Sep 01 06:46 UTC. Venus: 11.2° from Regulus 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 24.8° below the horizon. Rises 03:09; sets 17:41 (45°N, local apparent solar time). Visual magnitude -6.5. The disk is 4.5% illuminated (waning crescent). It is 24.4° from the Sun, on its west side. Motion is direct at 14.996° per day in ecliptic longitude at the snapshot. Position reference: Acubens, 5.4° away. Solar conjunction in ecliptic longitude Aug 31 17:41 UTC. Conjunction with Mercury in ecliptic longitude Sep 02 01:28 UTC. Conjunction with Venus in ecliptic longitude Sep 01 03:10 UTC. Conjunction with Mars in ecliptic longitude Sep 04 10:25 UTC. Conjunction with Ceres in ecliptic longitude Sep 01 03:21 UTC. Conjunction with Jupiter in ecliptic longitude Aug 31 17:10 UTC. Moon: 5.4° from Acubens 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 5.7° below the horizon. Rises 09:52; sets 20:30 (45°N, local apparent solar time). Visual magnitude 1.3. The disk is 92.8% illuminated (gibbous). It is 51.6° from the Sun, on its east side. Motion is direct at 0.649° per day in ecliptic longitude at the snapshot. Position reference: Spica, 4.2° away. Conjunction with Moon in ecliptic longitude Sep 04 10:25 UTC. Mars: 4.2° from Spica in the Pathfinder.

Jupiter

Jupiter: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:22; sets 18:48 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 100.0% illuminated (nearly full). It is 1.3° from the Sun, on its east side. Motion is direct at 0.217° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 7.2° away. Venus is 4.0° away at the snapshot. Solar conjunction in ecliptic longitude Aug 31 07:29 UTC. Conjunction with Moon in ecliptic longitude Aug 31 17:10 UTC. Jupiter: 7.2° 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 3.3° above the horizon. Rises 20:38; sets 09:49 (45°N, local apparent solar time). Visual magnitude 0.3. The disk is 99.8% illuminated (nearly full). It is 128.8° from the Sun, on its west side. Motion is retrograde at 0.034° 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 11.7° below the horizon. Rises 22:22; sets 13:38 (45°N, local apparent solar time). Visual magnitude 5.7. The disk is 99.9% illuminated (nearly full). It is 86.6° from the Sun, on its west side. Motion is direct at 0.014° 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 12.6° above the horizon. Rises 19:45; sets 07:59 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 150.4° from the Sun, on its west side. Motion is retrograde at 0.023° 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 05:37; sets 19:37 (45°N, local apparent solar time). Visual magnitude 8.5. The disk is 99.9% illuminated (nearly full). It is 10.1° from the Sun, on its east side. Motion is direct at 0.460° per day in ecliptic longitude at the snapshot. Position reference: Denebola, 9.9° away. Conjunction with Moon in ecliptic longitude Sep 01 03:21 UTC. Conjunction with Venus in ecliptic longitude Sep 01 06:46 UTC. Ceres: 9.9° 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 19.8° above the horizon. Rises 17:43; sets 02:22 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 148.5° from the Sun, on its east side. Motion is retrograde at 0.019° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.4° away. Pluto: 9.4° from Dabih in the Pathfinder.