Star Almanack
Alexander Ferrari Miller

ISO 2025-W13

Week begins: Monday, March 24, 2025

Notation:

Calendar

DateZodiac dayEvents
Mon, Mar 24, 2025♈ 5
Miaplacidus (β Car) — Naked eye 2 — Antarctic Spring
Tue, Mar 25, 2025♈ 6
Aspidiske (ι Car) — Naked eye 2 — Southern Spring
Wed, Mar 26, 2025♈ 7
α Lyn — Naked eye 3 — Northern Spring — in the Milky Way
C90 / NGC 2867 — Telescope 10 — Southern Spring
Finest NGC 40 / NGC 2841 · MCG 9-16-5 — Telescope 10 — Northern Spring
Markeb (κ Vel) — Naked eye 2 — Southern Spring
Thu, Mar 27, 2025♈ 8
Fri, Mar 28, 2025♈ 9
Alphard (α Hya) — Naked eye 2 — Tropical Spring
Sat, Mar 29, 2025♈ 10
🌑 New Moon — 10:57:50 UTC
Finest NGC 54 / NGC 2903 — Telescope 10 — Tropical Spring
Sun, Mar 30, 2025♈ 11

Weekly Solar-System Ephemeris

Snapshot: Week begins March 24, 2025, 00:00 UTC.

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

Notation:
Body☉︎☽︎☿︎♀︎♂︎♃︎♄︎
Ecliptic♈︎ 3°36′
β −0°00′		♑︎ 21°32′
β −4°50′		♈︎ 5°08′
β +3°17′		♈︎ 2°03′
β +8°20′		♋︎ 21°12′
β +2°52′		♊︎ 14°48′
β −0°20′		♓︎ 23°31′
β −1°56′
ObservingNightNaked eye -9.4☉︎☉︎Naked eye 0.3Naked eye -2.1☉︎
Rise05:5003:1905:3705:0411:2709:0105:41
Set18:1011:2718:2318:1803:1300:2117:11

Extended targets:

Body⚳︎♅︎♆︎♇︎
Ecliptic♓︎ 10°52′
β −7°48′		♉︎ 24°24′
β −0°13′		♓︎ 29°45′
β −1°16′		♒︎ 3°25′
β −3°26′
ObservingTelescope 9.2Binoculars 5.8☉︎TelescopeTelescope 14.5
Rise05:4607:5305:5003:49
Set15:5022:3717:4612:37

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 2026-10-23 06:42:22 UTC

View:

ISO 2025-W13 runs from March 24 through March 30. Venus and Neptune are separated by about 2.3° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot. Mercury and Venus are separated by about 3.1° in geocentric ecliptic longitude at the Monday 00:00 UTC snapshot.

Naked eye: 🌑 New Moon — 10:57:50 UTC. The dark Moon favors faint targets and extended star fields. Use Miaplacidus, Aspidiske, α Lyn, Markeb, Alphard as the week’s fixed-sky framework.

Miaplacidus: The Bright Star of Carina — An illuminating guide to one of the prominent stars in the constellation Carina, shining brightly in the southern skies.

Aspidiske: The Bright Beacon of Carina — A detailed look at the luminous star situated in the constellation Carina, its significance, and observational highlights.

Alpha Lyn: A Bright Beacon in the Lyn Constellation — An overview of the star Alpha Lyn, highlighting its characteristics and significance in the night sky.

Markeb: A Bright Star at the Heart of the Sky — Discover the characteristics and significance of Markeb, a prominent star in the southern sky.

Alphard: The Heart of Hydra, a Stellar Beacon in the Night Sky — An exploration of Alphard, a bright star in Hydra, its characteristics, and its significance in astronomy.

Planets: Moon: Naked eye; magnitude -9.4; direct motion; 34.8% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Mar 29 10:57 UTC. Conjunction with Mercury in ecliptic longitude Mar 28 22:02 UTC. Conjunction with Venus in ecliptic longitude Mar 28 19:16 UTC. Conjunction with Ceres in ecliptic longitude Mar 27 15:52 UTC. Conjunction with Saturn in ecliptic longitude Mar 28 11:03 UTC. Conjunction with Neptune in ecliptic longitude Mar 28 20:29 UTC. Conjunction with Pluto in ecliptic longitude Mar 24 21:33 UTC. Mercury: In solar glare; magnitude 5.8; retrograde motion; 0.7% illuminated. Monday 00:00 UTC snapshot. Solar conjunction in ecliptic longitude Mar 24 19:48 UTC. Conjunction with Moon in ecliptic longitude Mar 28 22:02 UTC. Conjunction with Neptune in ecliptic longitude Mar 30 02:46 UTC. Venus: In solar glare; magnitude -4.2; retrograde motion; 1.1% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Mar 28 19:16 UTC. Conjunction with Neptune in ecliptic longitude Mar 27 13:13 UTC. Mars: Naked eye; magnitude 0.3; direct motion; 91.0% illuminated. Monday 00:00 UTC snapshot. Ceres: Telescope; magnitude 9.2; direct motion; 99.5% illuminated. Below the horizon at 21:00 local apparent solar time, 45°N. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Mar 27 15:52 UTC. Jupiter: Naked eye; magnitude -2.1; direct motion; 99.1% illuminated. Monday 00:00 UTC snapshot. Saturn: In solar glare; magnitude 1.1; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Mar 28 11:03 UTC. Uranus: Binoculars; magnitude 5.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Neptune: In solar glare; magnitude 7.8; direct motion; 100.0% illuminated. Monday 00:00 UTC snapshot. Conjunction with Moon in ecliptic longitude Mar 28 20:29 UTC. Conjunction with Mercury in ecliptic longitude Mar 30 02:46 UTC. Conjunction with Venus in ecliptic longitude Mar 27 13:13 UTC. Pluto: Substantial telescope; magnitude 14.5; 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 Mar 24 21:33 UTC.

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

Small telescope: NGC 2867: consult its dedicated finder and observing story for equipment guidance; MCG 9-16-5: consult its dedicated finder and observing story for equipment guidance; NGC 2903: consult its dedicated finder and observing story for equipment guidance

Unveiling the Mysteries of a Celestial Planetary Nebula in Carina — An enduring object of celestial fascination, this planetary nebula offers insight into the lifecycle of stars.

Unveiling MCG 9-16-5: A Galaxy in Ursa Major — A distant galaxy situated within the constellation Ursa Major, offering insights into extragalactic structures.

Exploring the Leo Galaxy: A Glimpse Into a Cosmic Enigma — An overview of a distant galaxy in the constellation Leo, highlighting its significance and intriguing features.

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 05:37; sets 18:23 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 0.7% illuminated (crescent). It is 3.6° from the Sun, on its east side. Motion is retrograde at 0.858° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 17.1° away. Solar conjunction in ecliptic longitude Mar 24 19:48 UTC. Conjunction with Moon in ecliptic longitude Mar 28 22:02 UTC. Conjunction with Neptune in ecliptic longitude Mar 30 02:46 UTC. Mercury: 17.1° from Fumalsamakah in the Pathfinder.

Venus

Venus: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:04; sets 18:18 (45°N, local apparent solar time). Visual magnitude -4.2. The disk is 1.1% illuminated (crescent). It is 8.5° from the Sun, on its west side. Motion is retrograde at 0.627° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 13.0° away. Conjunction with Moon in ecliptic longitude Mar 28 19:16 UTC. Conjunction with Neptune in ecliptic longitude Mar 27 13:13 UTC. Venus: 13.0° 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 63.2° below the horizon. Rises 03:19; sets 11:27 (45°N, local apparent solar time). Visual magnitude -9.4. The disk is 34.8% illuminated (waning crescent). It is 72.1° from the Sun, on its west side. Motion is direct at 13.065° per day in ecliptic longitude at the snapshot. Position reference: Nunki, 8.9° away. Solar conjunction in ecliptic longitude Mar 29 10:57 UTC. Conjunction with Mercury in ecliptic longitude Mar 28 22:02 UTC. Conjunction with Venus in ecliptic longitude Mar 28 19:16 UTC. Conjunction with Ceres in ecliptic longitude Mar 27 15:52 UTC. Conjunction with Saturn in ecliptic longitude Mar 28 11:03 UTC. Conjunction with Neptune in ecliptic longitude Mar 28 20:29 UTC. Conjunction with Pluto in ecliptic longitude Mar 24 21:33 UTC. Moon: 8.9° from Nunki 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 61.4° above the horizon. Rises 11:27; sets 03:13 (45°N, local apparent solar time). Visual magnitude 0.3. The disk is 91.0% illuminated (gibbous). It is 107.6° from the Sun, on its east side. Motion is direct at 0.274° per day in ecliptic longitude at the snapshot. Position reference: Pollux, 4.5° away. Mars: 4.5° 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 33.1° above the horizon. Rises 09:01; sets 00:21 (45°N, local apparent solar time). Visual magnitude -2.1. The disk is 99.1% illuminated (nearly full). It is 71.2° from the Sun, on its east side. Motion is direct at 0.138° per day in ecliptic longitude at the snapshot. Position reference: Aldebaran, 6.9° away. Jupiter: 6.9° from Aldebaran in the Pathfinder.

Saturn

Saturn: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:41; sets 17:11 (45°N, local apparent solar time). Visual magnitude 1.1. The disk is 100.0% illuminated (nearly full). It is 10.3° from the Sun, on its west side. Motion is direct at 0.122° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 11.9° away. Conjunction with Moon in ecliptic longitude Mar 28 11:03 UTC. Saturn: 11.9° 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 15.6° above the horizon. Rises 07:53; sets 22:37 (45°N, local apparent solar time). Visual magnitude 5.8. The disk is 100.0% illuminated (nearly full). It is 50.8° from the Sun, on its east side. Motion is direct at 0.041° per day in ecliptic longitude at the snapshot. Position reference: Menkar, 15.7° away. Uranus: 15.7° from Menkar in the Pathfinder.

Neptune

Neptune: in solar glare at the Monday 00:00 UTC snapshot. Rises 05:50; sets 17:46 (45°N, local apparent solar time). Visual magnitude 7.8. The disk is 100.0% illuminated (nearly full). It is 4.0° from the Sun, on its west side. Motion is direct at 0.038° per day in ecliptic longitude at the snapshot. Position reference: Fumalsamakah, 14.9° away. Conjunction with Moon in ecliptic longitude Mar 28 20:29 UTC. Conjunction with Mercury in ecliptic longitude Mar 30 02:46 UTC. Conjunction with Venus in ecliptic longitude Mar 27 13:13 UTC. Neptune: 14.9° from Fumalsamakah 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 52.1° below the horizon. Rises 05:46; sets 15:50 (45°N, local apparent solar time). Visual magnitude 9.2. The disk is 99.5% illuminated (nearly full). It is 24.0° from the Sun, on its west side. Motion is direct at 0.381° per day in ecliptic longitude at the snapshot. Position reference: Fomalhaut, 14.8° away. Conjunction with Moon in ecliptic longitude Mar 27 15:52 UTC. Ceres: 14.8° from Fomalhaut 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 65.8° below the horizon. Rises 03:49; sets 12:37 (45°N, local apparent solar time). Visual magnitude 14.5. The disk is 100.0% illuminated (nearly full). It is 60.2° from the Sun, on its west side. Motion is direct at 0.019° per day in ecliptic longitude at the snapshot. Position reference: Dabih, 8.1° away. Conjunction with Moon in ecliptic longitude Mar 24 21:33 UTC. Pluto: 8.1° from Dabih in the Pathfinder.