Star Almanack
Alexander Ferrari Miller

ISO 2027-W28

Week begins: Monday, July 12, 2027

Notation:

Calendar

DateZodiac dayEvents
Mon, Jul 12, 2027♋ 22
M4 — Telescope 6 — Southern Summer
C75 / NGC 6124 — Telescope 6 — Southern Summer
C107 / NGC 6101 — Telescope 9 — Antarctic Summer
Tue, Jul 13, 2027♋ 23
Antares (α Sco) / Antares (α Scorpii) — Naked eye 1 — Southern Summer
Kornephoros (β Her) — Naked eye 3 — Tropical Summer
Wed, Jul 14, 2027♋ 24
M107 — Telescope 8 — Tropical Summer
Thu, Jul 15, 2027♋ 25
Fri, Jul 16, 2027♋ 26
C82 / NGC 6193 — Telescope 5 — Southern Summer
M13 — Telescope 6 — Northern Summer
Sat, Jul 17, 2027♋ 27
β Aps — Binoculars 4 — Antarctic Summer
Finest NGC 90 / NGC 6210 · Turtle Nebula — Telescope 10 — Northern Summer
Sun, Jul 18, 2027♋ 28
🌕 Full Moon · Hay Moon — 15:44:56 UTC
M12 — Telescope 7 — Tropical Summer
Atria (α TrA) — Naked eye 2 — Antarctic Summer
Larawag (ε Sco) — Naked eye 2 — Southern Summer

Weekly Solar-System Ephemeris

Snapshot: Week begins July 12, 2027, 00:00 UTC.

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

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♋︎ 19°28′
β −0°00′		♏︎ 4°23′
β −5°13′		♊︎ 29°38′
β −3°28′		♋︎ 10°56′
β +0°18′		♍︎ 28°10′
β +0°28′		♌︎ 27°11′
β +0°55′		♈︎ 27°10′
β −2°28′
ObservingNightNaked eye -10.6Naked eye 0.8☉︎Naked eye 1.1Naked eye -1.8Naked eye 0.6
Rise04:1913:4803:0503:3710:2207:3623:45
Set19:4123:2618:0319:0922:3821:3312:56

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♌︎ 21°03′
β +7°41′		♊︎ 8°16′
β −0°06′		♈︎ 6°40′
β −1°25′		♒︎ 6°21′
β −4°45′
ObservingTelescope 8.8Binoculars 5.8Telescope 7.8TelescopeTelescope 14.5
Rise06:4201:2522:5520:54
Set21:5916:3911:1105:37

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 16:51:21 UTC

View:

ISO 2027-W28 runs from July 12 through July 18. Uranus is about 1.5° in ecliptic longitude from Aldebaran in Taurus. To find Jupiter, first identify Leo, trace the Sickle, and locate Regulus in that pattern. Jupiter lies about 2.6° away in ecliptic longitude at the Monday 00:00 UTC snapshot; use the finder to transfer from Regulus to the planet.

Naked eye: 🌕 Full Moon · Hay Moon — 15:44:56 UTC. Bright moonlight favors prominent stars and planets while reducing contrast on faint deep-sky objects. Use Antares, Kornephoros, Atria, Larawag as the week’s fixed-sky framework.

Antares: The Heart of Scorpius, a Standout Stellar Beacon — A comprehensive overview of Antares, one of the sky's most luminous and distinctive red supergiants, guiding stargazers through its celestial significance.

Kornephoros: The Bright Star of Hercules — An in-depth look at the star β Herculis, illuminating its significance within the constellation Hercules.

Atria: A Bright Beacon in the Southern Constellation of Triangulum Australe — An exploration of the star Atria, its celestial significance, and its place in the night sky.

Larawag: The Fishhook of Scorpius and Its Celestial Significance — An exploration of Larawag, a prominent star in the constellation Scorpius, and its role in celestial navigation and astronomy.

Planets: Moon: Naked eye; magnitude -10.6; direct motion; 62.9% illuminated. Monday 00:00 UTC snapshot. Opposition in ecliptic longitude Jul 18 15:44 UTC. Mercury: Naked eye; magnitude 0.8; direct motion; 27.1% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Venus: In solar glare; magnitude -3.9; direct motion; 98.9% illuminated. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude 1.1; direct motion; 90.1% illuminated. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 8.8; direct motion; 98.8% illuminated. Monday 00:00 UTC snapshot. Jupiter: Naked eye; magnitude -1.8; direct motion; 99.7% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 0.6; direct motion; 99.7% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. 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. Neptune: Telescope; magnitude 7.8; 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.

Binoculars: Trace Apus’s charted figure in the finder, then identify β Aps at its charted position.

Beta Aps: A Steady Beacon in the Constellation of Aps — An enduring fixture in the southern skies, Beta Aps offers stargazers a glimpse into the richness of the celestial sphere.

Small telescope: M4: consult its dedicated finder and observing story for equipment guidance; NGC 6124: consult its dedicated finder and observing story for equipment guidance; NGC 6101: consult its dedicated finder and observing story for equipment guidance; M107: consult its dedicated finder and observing story for equipment guidance; NGC 6193: consult its dedicated finder and observing story for equipment guidance; Great Hercules Globular: consult its dedicated finder and observing story for equipment guidance; Turtle Nebula: consult its dedicated finder and observing story for equipment guidance; M12: consult its dedicated finder and observing story for equipment guidance

M4: A Bright Beacon in the Scorpius Constellation — Discover the beauty and significance of this prominent globular cluster in the heart of Scorpius.

Exploring the Mysteries of the Sagittarius Open Cluster — A detailed overview of a notable open star cluster located in the constellation Sagittarius, highlighting its astronomical significance.

Unveiling the Mysteries of Globular Cluster Caldwell C107 in the Constellation Aps — A stable celestial jewel, Caldwell C107 offers astronomers a glimpse into the ancient universe.

M107: A Faint but Fascinating Globular Cluster in Ophiuchus — An enduring celestial feature, M107 offers stargazers a glimpse into the ancient stellar populations of our galaxy.

Discovering the Stellar Assembly in the Constellation Ara — An exploration of the open star cluster cataloged as Caldwell 82, a captivating assembly of stars in the southern sky.

Great Hercules Globular: A Timeless Celestial Jewel in Hercules — An enduring spectacle for stargazers, known for its dense star population and historical significance.

The Turtle Nebula: A Planetary Nebula in Hydra — An exploration of the notable celestial object known as the Turtle Nebula, situated within the constellation Hydra, highlighting its characteristics and significance.

M12: The Bursting Globular Cluster in Ophiuchus — An enduring celestial gem, M12 offers astronomers a glimpse into the dense stellar environments of our galaxy’s halo.

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

Other objects listed this week: None

Mercury

Mercury: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 21.6° below the horizon. Rises 03:05; sets 18:03 (45°N, local apparent solar time). Visual magnitude 0.8. The disk is 27.1% illuminated (crescent). It is 20.1° from the Sun, on its west side. Motion is direct at 0.608° per day in ecliptic longitude at the snapshot. Position reference: Alhena, 10.3° away. Mercury: 10.3° from Alhena in the Pathfinder.

Venus

Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 03:37; sets 19:09 (45°N, local apparent solar time). Visual magnitude -3.9. The disk is 98.9% illuminated (gibbous). It is 8.5° from the Sun, on its west side. Motion is direct at 1.227° per day in ecliptic longitude at the snapshot. Position reference: Alhena, 7.2° away. Venus: 7.2° from Alhena 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 19.3° above the horizon. Rises 13:48; sets 23:26 (45°N, local apparent solar time). Visual magnitude -10.6. The disk is 62.9% illuminated (waxing gibbous). It is 104.9° from the Sun, on its east side. Motion is direct at 12.950° per day in ecliptic longitude at the snapshot. Position reference: Spica, 10.6° away. Opposition in ecliptic longitude Jul 18 15:44 UTC. Moon: 10.6° from Spica 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 16.7° above the horizon. Rises 10:22; sets 22:38 (45°N, local apparent solar time). Visual magnitude 1.1. The disk is 90.1% illuminated (gibbous). It is 68.7° from the Sun, on its east side. Motion is direct at 0.564° per day in ecliptic longitude at the snapshot. Position reference: Zavijava, 0.7° away. Mars: 0.7° 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 5.1° above the horizon. Rises 07:36; sets 21:33 (45°N, local apparent solar time). Visual magnitude -1.8. The disk is 99.7% illuminated (nearly full). It is 37.7° from the Sun, on its east side. Motion is direct at 0.192° per day in ecliptic longitude at the snapshot. Position reference: Regulus, 3.1° away. Jupiter: 3.1° 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 26.0° below the horizon. Rises 23:45; sets 12:56 (45°N, local apparent solar time). Visual magnitude 0.6. The disk is 99.7% illuminated (nearly full). It is 82.3° from the Sun, on its west side. Motion is direct at 0.048° per day in ecliptic longitude at the snapshot. Position reference: Alrescha, 7.1° away. Saturn: 7.1° 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 23.5° below the horizon. Rises 01:25; sets 16:39 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 41.2° from the Sun, on its west side. Motion is direct at 0.047° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 5.7° away. Uranus: 5.7° 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 20.2° below the horizon. Rises 22:55; sets 11:11 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 102.8° from the Sun, on its west side. Motion is retrograde at 0.001° 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 8.6° above the horizon. Rises 06:42; sets 21:59 (45°N, local apparent solar time). Visual magnitude 8.8. The disk is 98.8% illuminated (gibbous). It is 32.4° from the Sun, on its east side. Motion is direct at 0.438° per day in ecliptic longitude at the snapshot. Position reference: Algieba, 8.9° away. Ceres: 8.9° 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 0.2° above the horizon. Rises 20:54; sets 05:37 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 162.5° from the Sun, on its west side. Motion is retrograde at 0.022° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 9.5° away. Pluto: 9.5° from Dabih in the Pathfinder.