Star Almanack
Alexander Ferrari Miller

ISO 2025-W07

Week begins: Monday, February 10, 2025

Notation:

Calendar

DateZodiac dayEvents
Mon, Feb 10, 2025♒ 23
Tue, Feb 11, 2025♒ 24
Alhena (γ Gem) — Naked eye 2 — Tropical Winter
Finest NGC 33 / NGC 2261 · Hubble's Variable Nebula / C46 / NGC 2261 · Hubble's Variable Nebula — Telescope — Tropical Winter
Wed, Feb 12, 2025♒ 25
🌕 Full Moon · Wolf Moon — 13:53:24 UTC
Sirius (α CMa) — Naked eye -1 — Tropical Winter
Sirius and Sirius B (α Canis Majoris) — Telescope — Tropical Winter
Thu, Feb 13, 2025♒ 26
M41 — Telescope 5 — Tropical Winter
α Pic — Naked eye 3 — Southern Winter
Fri, Feb 14, 2025♒ 27
Sat, Feb 15, 2025♒ 28
Sun, Feb 16, 2025♒ 29
Adhara (ε CMa) — Naked eye 2 — Southern Winter

Weekly Solar-System Ephemeris

Snapshot: Week begins February 10, 2025, 00:00 UTC.

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

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♒︎ 21°30′
β +0°00′		♋︎ 20°39′
β +4°46′		♒︎ 21°52′
β −2°02′		♈︎ 3°53′
β +3°21′		♋︎ 18°18′
β +4°05′		♊︎ 11°20′
β −0°28′		♓︎ 18°26′
β −1°55′
ObservingNightNaked eye -11.9☉︎Naked eye -4.8Naked eye -0.8Naked eye -2.4Naked eye 1.1
Rise06:5513:5207:0908:1213:4411:2708:08
Set17:0506:0117:0020:5505:4902:4119:22

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♒︎ 24°31′
β −7°14′		♉︎ 23°19′
β −0°14′		♓︎ 28°14′
β −1°16′		♒︎ 2°20′
β −3°20′
Observing☉︎Binoculars 5.7Telescope 7.8☉︎
Rise07:4510:2808:2506:23
Set16:5901:0920:1515:10

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 2026-10-23 04:34:43 UTC

View:

ISO 2025-W07 runs from February 10 through February 16. Jupiter is about 1.5° in ecliptic longitude from Aldebaran in Taurus. Mercury and Ceres are separated by about 2.6° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.

Naked eye: 🌕 Full Moon · Wolf Moon — 13:53:24 UTC. Bright moonlight favors prominent stars and planets while reducing contrast on faint deep-sky objects. Use Alhena, Sirius, α Pic, Adhara as the week’s fixed-sky framework.

Alhena: The Bright Star of Gemini’s Western Edge — A guiding beacon in the constellation of Gemini, Alhena illuminates the night with its steady brilliance.

Sirius: The Brightest Star in Earth's Sky — An illuminating overview of Sirius, the luminous beacon in our night sky that has inspired humanity across ages.

Alpha Piscium: The Mysterious Star of the Pic Constellation — An overview of Alpha Pic, a notable but less prominent star that sparks curiosity among astronomers and stargazers alike.

Adhara: A Bright Beacon in Canis Major — An in-depth look at one of the galaxy's luminous giants, shining steadily in the night sky.

Planets: Moon: Naked eye; magnitude -11.9; direct motion; 92.8% illuminated. Monday 00:00 UTC snapshot. Opposition in ecliptic longitude Feb 12 13:53 UTC. Mercury: In solar glare; magnitude -1.6; direct motion; 99.8% illuminated. Monday 00:00 UTC snapshot. Conjunction with Ceres in ecliptic longitude Feb 11 21:32 UTC. Venus: Naked eye; magnitude -4.8; direct motion; 31.3% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Mars: Naked eye; magnitude -0.8; retrograde motion; 97.2% illuminated. Monday 00:00 UTC snapshot. Ceres: In solar glare; magnitude 9.0; direct motion; 99.9% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Feb 14 21:34 UTC. Conjunction with Mercury in ecliptic longitude Feb 11 21:32 UTC. Jupiter: Naked eye; magnitude -2.4; direct motion; 99.2% illuminated. Monday 00:00 UTC snapshot. Saturn: Naked eye; magnitude 1.1; direct motion; 99.9% 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. Monday 00:00 UTC snapshot. Neptune: Telescope; magnitude 7.8; direct motion; 100.0% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Pluto: In solar glare; magnitude 14.5; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot.

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

Small telescope: Hubble's Variable Nebula: consult its dedicated finder and observing story for equipment guidance; M41: consult its dedicated finder and observing story for equipment guidance

Hubble's Variable Nebula: A Dynamic Gem in Monoceros — An exploration of the ever-changing beauty of Hubble's Variable Nebula, a cosmic emission nebulosity in the constellation Monoceros.

M41: The Beehive Cluster in Canis Major — An enduring open cluster offering a splendid glimpse into stellar formation.

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 07:09; sets 17:00 (45°N, local apparent solar time). Visual magnitude -1.6. The disk is 99.8% illuminated (nearly full). It is 2.1° from the Sun, on its east side. Motion is direct at 1.778° per day in ecliptic longitude at the snapshot. Position reference: Sadalsuud, 10.8° away. Conjunction with Ceres in ecliptic longitude Feb 11 21:32 UTC. Mercury: 10.8° from Sadalsuud in the Pathfinder.

Venus

Venus: naked eye at the Monday 00:00 UTC snapshot. At 45°N and 21:00 local apparent solar time, it is 1.5° below the horizon. Rises 08:12; sets 20:55 (45°N, local apparent solar time). Visual magnitude -4.8. The disk is 31.3% illuminated (crescent). It is 42.5° from the Sun, on its east side. Motion is direct at 0.628° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 15.9° away. Venus: 15.9° from Fumalsamakah 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 68.4° above the horizon. Rises 13:52; sets 06:01 (45°N, local apparent solar time). Visual magnitude -11.9. The disk is 92.8% illuminated (waxing gibbous). It is 148.8° from the Sun, on its east side. Motion is direct at 13.265° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 3.5° away. Mars is 2.5° away at the snapshot. Opposition in ecliptic longitude Feb 12 13:53 UTC. Moon: 3.5° from Pollux 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 69.1° above the horizon. Rises 13:44; sets 05:49 (45°N, local apparent solar time). Visual magnitude -0.8. The disk is 97.2% illuminated (gibbous). It is 146.6° from the Sun, on its east side. Motion is retrograde at 0.183° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 5.9° away. Moon is 2.5° away at the snapshot. Mars: 5.9° from Pollux 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 56.6° above the horizon. Rises 11:27; sets 02:41 (45°N, local apparent solar time). Visual magnitude -2.4. The disk is 99.2% illuminated (nearly full). It is 109.8° from the Sun, on its east side. Motion is direct at 0.019° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 5.1° away. Jupiter: 5.1° from Aldebaran 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 17.8° below the horizon. Rises 08:08; sets 19:22 (45°N, local apparent solar time). Visual magnitude 1.1. The disk is 99.9% illuminated (nearly full). It is 27.0° from the Sun, on its east side. Motion is direct at 0.115° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 11.0° away. Saturn: 11.0° from Fumalsamakah 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 42.2° above the horizon. Rises 10:28; sets 01:09 (45°N, local apparent solar time). Visual magnitude 5.7. The disk is 99.9% illuminated (nearly full). It is 91.8° from the Sun, on its east side. Motion is direct at 0.009° per day in ecliptic longitude at the snapshot. Position reference: Menkar, 15.0° away. Uranus: 15.0° from Menkar 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 8.4° below the horizon. Rises 08:25; sets 20:15 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 36.8° from the Sun, on its east side. Motion is direct at 0.032° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 13.9° away. Neptune: 13.9° from Fumalsamakah in the Pathfinder.

Ceres

Ceres: in solar glare at the Monday 00:00 UTC snapshot. Rises 07:45; sets 16:59 (45°N, local apparent solar time). Visual magnitude 9.0. The disk is 99.9% illuminated (nearly full). It is 7.8° from the Sun, on its east side. Motion is direct at 0.393° per day in ecliptic longitude at the snapshot. Position reference: Sadalsuud, 15.9° away. Solar conjunction in ecliptic longitude Feb 14 21:34 UTC. Conjunction with Mercury in ecliptic longitude Feb 11 21:32 UTC. Ceres: 15.9° from Sadalsuud in the Pathfinder.

Pluto

Pluto: in solar glare at the Monday 00:00 UTC snapshot. Rises 06:23; sets 15:10 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 19.4° from the Sun, on its west side. Motion is direct at 0.031° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.2° away. Pluto: 8.2° from Dabih in the Pathfinder.