Star Almanack
Alexander Ferrari Miller

ISO 2027-W34

Week begins: Monday, August 23, 2027

Notation:

Calendar

DateZodiac dayEvents
Mon, Aug 23, 2027♍ 1
♍ Sun enters Virgo — 08:14:19 UTC
Tue, Aug 24, 2027♍ 2
Meridiana (α CrA) — Binoculars 4 — Southern Summer
C101 / NGC 6744 — Telescope 9 — Southern Summer
β CrA — Binoculars 4 — Southern Summer
C93 / NGC 6752 — Telescope 5 — Southern Summer
Wed, Aug 25, 2027♍ 3
🌗 Last Quarter — 02:27:21 UTC
Thu, Aug 26, 2027♍ 4
M56 — Telescope 8 — Northern Summer
Finest NGC 95 / NGC 6781 · PN G041.8-02.9 — Telescope 12 — Tropical Summer
Fri, Aug 27, 2027♍ 5
Arkab Prior (β1 Sgr) — Binoculars 4 — Southern Summer
Arkab Posterior (β2 Sgr) — Binoculars 4 — Southern Summer
Sat, Aug 28, 2027♍ 6
Rukbat (α Sgr) — Binoculars 4 — Southern Summer
RR Lyrae (RR Lyrae) — Binoculars — Northern Summer
Sun, Aug 29, 2027♍ 7
Anser (α Vul) — Binoculars 4 — Northern Summer
Finest NGC 105 / NGC 6802 · Collinder 400 — Telescope 12 — Tropical Summer
Albireo (β1 Cyg) — Naked eye 3 — Northern Summer
Albireo B (β2 Cyg) — Binoculars 5 — Northern Summer

Weekly Solar-System Ephemeris

Snapshot: Week begins August 23, 2027, 00:00 UTC.

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

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♌︎ 29°40′
β +0°00′		♉︎ 3°59′
β +5°13′		♍︎ 10°49′
β +1°19′		♍︎ 2°42′
β +1°24′		♎︎ 23°30′
β −0°09′		♍︎ 5°53′
β +0°55′		♈︎ 27°44′
β −2°39′
ObservingNightNaked eye -10.9☉︎☉︎Naked eye 1.3☉︎Naked eye 0.4
Rise05:0720:3506:0505:2109:5305:4021:04
Set18:5311:1019:2319:0620:4619:1010:16

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♍︎ 9°56′
β +7°35′		♊︎ 9°43′
β −0°06′		♈︎ 6°10′
β −1°27′		♒︎ 5°24′
β −4°48′
Observing☉︎Binoculars 5.7Telescope 7.7TelescopeTelescope 14.5
Rise05:4522:4720:1118:09
Set19:5614:0308:2502:49

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 19:01:06 UTC

View:

ISO 2027-W34 runs from August 23 through August 29. Uranus is about 0.1° in ecliptic longitude from Aldebaran in Taurus. Mars is about 0.3° in ecliptic longitude from Spica in Virgo.

Naked eye: 🌗 Last Quarter — 02:27:21 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use Albireo as the week’s fixed-sky framework.

Albireo: The Jewel of Cygnus, A Stellar Contrast — An exploration of the captivating binary star that has fascinated observers for centuries.

Planets: Moon: Naked eye; magnitude -10.9; direct motion; 71.7% illuminated. Monday 00:00 UTC snapshot. Conjunction with Uranus in ecliptic longitude Aug 25 16:40 UTC. Mercury: In solar glare; magnitude -0.9; direct motion; 93.6% illuminated. Monday 00:00 UTC snapshot. Venus: In solar glare; magnitude -3.9; direct motion; 99.8% illuminated. Monday 00:00 UTC snapshot. Conjunction with Jupiter in ecliptic longitude Aug 26 02:59 UTC. Mars: Naked eye; magnitude 1.3; direct motion; 92.4% 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; 99.8% illuminated. Monday 00:00 UTC snapshot. Jupiter: In solar glare; magnitude -1.7; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Venus in ecliptic longitude Aug 26 02:59 UTC. Saturn: Naked eye; magnitude 0.4; retrograde motion; 99.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. 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. Conjunction with Moon in ecliptic longitude Aug 25 16:40 UTC. 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 Corona Australis’s charted figure in the finder, then identify Alfecca Meridiana at its charted position. Trace Corona Australis’s charted figure in the finder, then identify β CrA at its charted position. Trace Sagittarius’s charted figure in the finder, then identify Arkab Prior at its charted position. Trace Sagittarius’s charted figure in the finder, then identify Arkab Posterior at its charted position. Trace Sagittarius’s charted figure in the finder, then identify Rukbat at its charted position. Trace Vulpecula’s charted figure in the finder, then identify Anser at its charted position. Trace Cygnus’s charted figure in the finder, then identify Albireo B at its charted position.

Alfecca Meridiana: The Southern Star of Corona Australis — A detailed look at a prominent star in the constellation Corona Australis, revealing its significance and characteristics.

Beta Coronae Australis: The Star of the Southern Hemisphere — An illuminating guide to one of the notable stars in the constellation Corona Australis, offering a glimpse into its celestial significance.

Arkab Prior: A Beacon in the Sagittarius Sky — Discover the celestial significance and characteristics of the star known as Arkab Prior in the Sagittarius constellation.

Arkab Posterior: A Cosmic Beacon in Sagittarius — Discover the celestial significance of this prominent star within the constellation Sagittarius, known for its captivating brightness and skyward position.

Rukbat: The Bright Foot of Sagittarius — A detailed look at the star guiding the celestial Archer.

Anser: The Bright Star in Vulpecula’s Sky — Discover the significance and characteristics of the star designated as Anser in the constellation Vulpecula.

Albireo B: A Stellar Companion in Cygnus — An overview of Albireo B, a noteworthy star within the Cygnus constellation, highlighting its significance and characteristics.

Small telescope: NGC 6744: consult its dedicated finder and observing story for equipment guidance; NGC 6752: consult its dedicated finder and observing story for equipment guidance; M56: consult its dedicated finder and observing story for equipment guidance; PN G041.8-02.9: consult its dedicated finder and observing story for equipment guidance; Collinder 400: consult its dedicated finder and observing story for equipment guidance

Unveiling the Mysteries of a Galactic Candidate in Pav Constellaion — Exploring the characteristics and significance of a notable barred spiral galaxy in the Pav constellation.

The Globular Cluster in Pav: A Celestial Beacon — An enduring fixture in the southern skies, this globular cluster offers stargazers a glimpse into the ancient cosmos.

M56: A Distant Beacon in Lyra’s Sky — An overview of Messier 56, a globular cluster offering insights into the ancient structures of our galaxy.

PN G041.8-02.9: A Faint Gem in Aquila's Sky — Exploring the characteristics of a celestial planetary nebula in the constellation Aquila.

Exploring Collinder 400: A Gleaming Open Cluster in Vulpecula — An overview of this intriguing stellar gathering, highlighting its characteristics and significance.

Substantial telescope: No fixed-sky Calendar object is classified as requiring a substantial telescope this week.

Other objects listed this week: Albireo B

Mercury

Mercury: in solar glare at the Monday 00:00 UTC snapshot. Rises 06:05; sets 19:23 (45°N, local apparent solar time). Visual magnitude -0.9. The disk is 93.6% illuminated (gibbous). It is 11.2° from the Sun, on its east side. Motion is direct at 1.798° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 10.6° away. Jupiter is 4.9° away at the snapshot. Mercury: 10.6° from Regulus in the Pathfinder.

Venus

Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:21; sets 19:06 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 99.8% illuminated (nearly full). It is 3.3° from the Sun, on its east side. Motion is direct at 1.238° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 2.6° away. Jupiter is 3.2° away at the snapshot. Conjunction with Jupiter in ecliptic longitude Aug 26 02:59 UTC. Venus: 2.6° 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 3.5° above the horizon. Rises 20:35; sets 11:10 (45°N, local apparent solar time). Visual magnitude -10.9. The disk is 71.7% illuminated (waning gibbous). It is 115.6° from the Sun, on its west side. Motion is direct at 12.861° per day in ecliptic longitude at the snapshot. Position reference: Sheratan, 3.3° away. Conjunction with Uranus in ecliptic longitude Aug 25 16:40 UTC. Moon: 3.3° from Sheratan 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° below the horizon. Rises 09:53; sets 20:46 (45°N, local apparent solar time). Visual magnitude 1.3. The disk is 92.4% illuminated (gibbous). It is 53.8° from the Sun, on its east side. Motion is direct at 0.638° per day in ecliptic longitude at the snapshot. Position reference: Spica, 2.0° away. Mars: 2.0° from Spica in the Pathfinder.

Jupiter

Jupiter: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:40; sets 19:10 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 100.0% illuminated (nearly full). It is 6.3° from the Sun, on its east side. Motion is direct at 0.217° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 5.7° away. Mercury is 4.9° away at the snapshot. Venus is 3.2° away at the snapshot. Conjunction with Venus in ecliptic longitude Aug 26 02:59 UTC. Jupiter: 5.7° 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 1.2° below the horizon. Rises 21:04; sets 10:16 (45°N, local apparent solar time). Visual magnitude 0.4. The disk is 99.8% illuminated (nearly full). It is 121.9° from the Sun, on its west side. Motion is retrograde at 0.023° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 6.7° away. 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 14.5° below the horizon. Rises 22:47; sets 14:03 (45°N, local apparent solar time). Visual magnitude 5.7. The disk is 99.9% illuminated (nearly full). It is 79.9° from the Sun, on its west side. Motion is direct at 0.020° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 5.4° away. Conjunction with Moon in ecliptic longitude Aug 25 16:40 UTC. 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 8.1° above the horizon. Rises 20:11; sets 08:25 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 143.5° from the Sun, on its west side. Motion is retrograde at 0.021° 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 05:45; sets 19:56 (45°N, local apparent solar time). Visual magnitude 8.5. The disk is 99.8% illuminated (nearly full). It is 12.7° from the Sun, on its east side. Motion is direct at 0.458° per day in ecliptic longitude at the snapshot. Position reference: Algieba, 9.9° away. Ceres: 9.9° 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 18.4° above the horizon. Rises 18:09; sets 02:49 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 155.3° from the Sun, on its east side. Motion is retrograde at 0.021° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.4° away. Pluto: 9.4° from Dabih in the Pathfinder.