Star Almanack
Alexander Ferrari Miller

ISO 2027-W30

Week begins: Monday, July 26, 2027

Notation:

Calendar

DateZodiac dayEvents
Mon, Jul 26, 2027♌ 4
🌗 Last Quarter — 16:54:55 UTC
M9 — Telescope 8 — Tropical Summer
Tue, Jul 27, 2027♌ 5
β Ara — Naked eye 3 — Southern Summer
C81 / NGC 6352 — Telescope 8 — Southern Summer
Wed, Jul 28, 2027♌ 6
Finest NGC 91 / NGC 6369 · Little Ghost Nebula — Telescope 11 — Southern Summer
Thu, Jul 29, 2027♌ 7
Rastaban (β Dra) — Naked eye 3 — Northern Summer
α Ara — Naked eye 3 — Southern Summer
Shaula (λ Sco) — Naked eye 2 — Southern Summer
Fri, Jul 30, 2027♌ 8
Rasalhague (α Oph) — Naked eye 2 — Tropical Summer
Sargas (θ Sco) — Naked eye 2 — Southern Summer
M14 — Telescope 8 — Tropical Summer
Sat, Jul 31, 2027♌ 9
M6 — Telescope 4 — Southern Summer
C86 / NGC 6397 — Telescope 6 — Southern Summer
Sun, Aug 1, 2027♌ 10
κ Sco — Naked eye 2 — Southern Summer
Cebalrai (β Oph) — Naked eye 3 — Tropical Summer

Weekly Solar-System Ephemeris

Snapshot: Week begins July 26, 2027, 00:00 UTC.

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

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♌︎ 2°49′
β +0°00′		♈︎ 24°23′
β +5°04′		♋︎ 16°01′
β −0°20′		♋︎ 28°08′
β +0°48′		♎︎ 6°15′
β +0°14′		♌︎ 29°58′
β +0°54′		♈︎ 27°41′
β −2°31′
ObservingNightNaked eye -10.4☉︎☉︎Naked eye 1.2Naked eye -1.7Naked eye 0.5
Rise04:3122:0103:0904:0510:0806:5522:50
Set19:2912:0418:2919:1721:5820:4412:02

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♌︎ 27°15′
β +7°38′		♊︎ 8°53′
β −0°06′		♈︎ 6°35′
β −1°26′		♒︎ 6°02′
β −4°46′
ObservingTelescope 8.7Binoculars 5.8Telescope 7.7TelescopeTelescope 14.5
Rise06:2100:3121:5819:57
Set21:1615:4510:1404:39

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 17:32:17 UTC

View:

ISO 2027-W30 runs from July 26 through August 1. To find Jupiter, first identify Leo, trace the Sickle, and locate Regulus in that pattern. Jupiter lies about 0.1° away in ecliptic longitude at the Monday 00:00 UTC snapshot; use the finder to transfer from Regulus to the planet. Uranus is about 0.9° in ecliptic longitude from Aldebaran in Taurus.

Naked eye: 🌗 Last Quarter — 16:54:55 UTC. Moderate moonlight makes timing and local sky position important for faint targets. Use β Ara, Rastaban, α Ara, Shaula, Rasalhague, Sargas, Kappa Scorpii, Cebalrai as the week’s fixed-sky framework.

Beta Ara: A Bright Beacon in the Southern Sky — An overview of the characteristics and significance of the star Beta Ara in the constellation Ara.

Rastaban: The Bright Star of Draco's Lozenge — A detailed overview of Rastaban, a prominent star in the constellation Draco, highlighting its astronomical significance and role within the Lozenge asterism.

Alpha Ara: The Bright Gem of the Ara Constellation — An overview of the notable star Alpha Ara, its characteristics, and its place in the night sky.

Shaula: The Bright Star at the Fishhook of Scorpius — An in-depth look at one of the prominent stars shaping the iconic Scorpius constellation.

Rasalhague: The Mighty Star of Ophiuchus — An enduring beacon in the realm of the night sky, Rasalhague offers astronomers both amateur and expert a glimpse into the cosmos' luminous wonders.

Sargas: The Bright Star of Scorpius's Fishhook — A luminous giant star marking the distinctive asterism in the constellation Scorpius.

Kappa Scorpii: A Bright Beacon in the Scorpius Constellation — An overview of Kappa Scorpii, its characteristics, and significance within the mythological and celestial landscape of Scorpius.

Cebalrai: A Bright Beacon in Oph — Discover the constellation's notable star and its significance in the night sky.

Planets: Moon: Naked eye; magnitude -10.4; direct motion; 57.4% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Mercury in ecliptic longitude Aug 01 15:53 UTC. Conjunction with Saturn in ecliptic longitude Jul 26 06:11 UTC. Conjunction with Uranus in ecliptic longitude Jul 29 07:34 UTC. Mercury: In solar glare; magnitude -0.8; direct motion; 69.7% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Aug 01 15:53 UTC. Venus: In solar glare; magnitude -3.9; direct motion; 99.7% illuminated. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 1.2; direct motion; 90.8% illuminated. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 8.7; direct motion; 99.3% illuminated. Monday 00:00 UTC snapshot. Jupiter: Naked eye; magnitude -1.7; direct motion; 99.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.5; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Jul 26 06:11 UTC. Uranus: Binoculars; magnitude 5.8; 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 Jul 29 07:34 UTC. 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. Opposition in ecliptic longitude Jul 29 06:47 UTC.

Binoculars: No fixed-sky Calendar object is classified for binocular observing this week.

Small telescope: M9: consult its dedicated finder and observing story for equipment guidance; NGC 6352: consult its dedicated finder and observing story for equipment guidance; Little Ghost Nebula: consult its dedicated finder and observing story for equipment guidance; M14: consult its dedicated finder and observing story for equipment guidance; Butterfly Cluster: consult its dedicated finder and observing story for equipment guidance; NGC 6397: consult its dedicated finder and observing story for equipment guidance

M9: A Pristine Globular Cluster in Ophiuchus — Discover the dense stellar congregation of M9, a captivating globular cluster nestled in the heart of the constellation Ophiuchus.

The Globular Cluster in Ara: A Stellar Beacon — An enduring marvel of the night sky, this globular cluster offers astronomers a glimpse into the ancient past of our galaxy.

The Little Ghost Nebula: A Serene Beacon in Oph — Discover the striking features of a planetary nebula that whispers tales of stellar evolution.

M14: A Dazzling Globular Cluster in Ophiuchus — An enduring target for astronomers, M14 offers a glimpse into the universe's ancient stellar populations.

The Butterfly Cluster: A Stellar Jewel in Scorpius — An overview of one of the most stunning open clusters visible to amateur astronomers, M6.

A Magnificent Globular Cluster in Ara: Caldwell 86 — An enduring celestial marvel showcasing the grandeur of the universe’s ancient stellar populations.

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 03:09; sets 18:29 (45°N, local apparent solar time). Visual magnitude -0.8. The disk is 69.7% illuminated (gibbous). It is 16.8° from the Sun, on its west side. Motion is direct at 1.683° per day in ecliptic longitude at the snapshot. Position reference: Alhena, 9.1° away. Conjunction with Moon in ecliptic longitude Aug 01 15:53 UTC. Mercury: 9.1° from Alhena in the Pathfinder.

Venus

Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 04:05; sets 19:17 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 99.7% illuminated (nearly full). It is 4.8° from the Sun, on its west side. Motion is direct at 1.231° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 7.4° away. Venus: 7.4° from Pollux 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 10.3° below the horizon. Rises 22:01; sets 12:04 (45°N, local apparent solar time). Visual magnitude -10.4. The disk is 57.4% illuminated (waning gibbous). It is 98.4° from the Sun, on its west side. Motion is direct at 12.796° per day in ecliptic longitude at the snapshot. Position reference: Sheratan, 10.5° away. Conjunction with Mercury in ecliptic longitude Aug 01 15:53 UTC. Conjunction with Saturn in ecliptic longitude Jul 26 06:11 UTC. Conjunction with Uranus in ecliptic longitude Jul 29 07:34 UTC. Moon: 10.5° 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 9.6° above the horizon. Rises 10:08; sets 21:58 (45°N, local apparent solar time). Visual magnitude 1.2. The disk is 90.8% illuminated (gibbous). It is 63.4° from the Sun, on its east side. Motion is direct at 0.591° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 8.7° away. Mars: 8.7° from Zavijava 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 3.3° below the horizon. Rises 06:55; sets 20:44 (45°N, local apparent solar time). Visual magnitude -1.7. The disk is 99.8% illuminated (nearly full). It is 27.2° from the Sun, on its east side. Motion is direct at 0.204° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 0.5° away. Jupiter: 0.5° 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 18.5° below the horizon. Rises 22:50; sets 12:02 (45°N, local apparent solar time). Visual magnitude 0.5. The disk is 99.7% illuminated (nearly full). It is 95.1° from the Sun, on its west side. Motion is direct at 0.025° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 6.9° away. Conjunction with Moon in ecliptic longitude Jul 26 06:11 UTC. Saturn: 6.9° 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 22.3° below the horizon. Rises 00:31; sets 15:45 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 53.9° from the Sun, on its west side. Motion is direct at 0.040° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 5.5° away. Conjunction with Moon in ecliptic longitude Jul 29 07:34 UTC. Uranus: 5.5° 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 10.8° below the horizon. Rises 21:58; sets 10:14 (45°N, local apparent solar time). Visual magnitude 7.7. The disk is 100.0% illuminated (nearly full). It is 116.2° from the Sun, on its west side. Motion is retrograde at 0.009° per day in ecliptic longitude at the snapshot. Position reference: Diphda, 19.7° away. Neptune: 19.7° from Diphda 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 2.0° above the horizon. Rises 06:21; sets 21:16 (45°N, local apparent solar time). Visual magnitude 8.7. The disk is 99.3% illuminated (nearly full). It is 25.5° from the Sun, on its east side. Motion is direct at 0.447° per day in ecliptic longitude at the snapshot. Position reference: Algieba, 3.0° away. Ceres: 3.0° 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 8.0° above the horizon. Rises 19:57; sets 04:39 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 174.2° from the Sun, on its west side. Motion is retrograde at 0.023° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.5° away. Opposition in ecliptic longitude Jul 29 06:47 UTC. Pluto: 9.5° from Dabih in the Pathfinder.