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GAIA

Astronomical calendar

What happens in the sky over the next twelve months. Dates are computed; times are shown in your time zone.

Computed on

Computed

Moon phases, eclipses, equinoxes, solstices, oppositions, elongations and conjunctions are computed with astronomy-engine, accurate to about one arc-minute.

Indicative

Meteor shower peak dates and rates are indicative and vary from year to year. For exact data see the IMO calendar.
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  1. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  2. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  3. /Conjunctions

    Mars–Jupiter conjunction, 1.2° apart

    The two planets appear close together in the sky; distance from the Sun: 88°.

    Computed

  4. /Meteor showers

    Leonids peak (up to 15 meteors/hour)

    Visible from both hemispheres. Radiant: Leo. Parent: 55P/Tempel–Tuttle.

    Moon 45% illuminated: good conditions away from city lights.

    Indicative

  5. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  6. /Elongations

    Mercury at greatest morning elongation (19.6°)

    Look low in the east before sunrise.

    Computed

  7. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  8. /Oppositions

    Uranus at opposition (magnitude 5.6)

    Visible most of the night: rises at sunset and sets at sunrise.

    You will need binoculars or a small telescope.

    Computed

  1. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  2. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  3. /Meteor showers

    Geminids peak (up to 150 meteors/hour)

    Visible from both hemispheres. Radiant: Gemini. Parent: 3200 Phaethon.

    Moon 21% illuminated: good conditions away from city lights.

    Indicative

  4. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  5. /Equinoxes and solstices

    December solstice

    Applies worldwide.

    Computed

  6. /Meteor showers

    Ursids peak (up to 10 meteors/hour)

    Best from the northern hemisphere. Radiant: Ursa Minor. Parent: 8P/Tuttle.

    Moon 94% illuminated: only the brightest meteors will show.

    Indicative

  7. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  8. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Elongations

    Venus at greatest morning elongation (47.0°)

    Look low in the east before sunrise.

    Computed

  2. /Meteor showers

    Quadrantids peak (up to 80 meteors/hour)

    Best from the northern hemisphere. Radiant: Boötes. Parent: 2003 EH1.

    Moon 13% illuminated: good conditions away from city lights.

    Indicative

  3. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  4. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  5. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  6. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Elongations

    Mercury at greatest evening elongation (18.3°)

    Look low in the west after sunset.

    Computed

  2. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  3. /Solar eclipses

    Annular solar eclipse

    Greatest eclipse near latitude -31.3°, longitude -48.5°. Visibility depends strongly on location.

    Never look at the Sun without ISO 12312-2 certified filters, not even during a partial eclipse.

    Computed

  4. /Oppositions

    Jupiter at opposition (magnitude -2.6)

    Visible most of the night: rises at sunset and sets at sunrise.

    Visible to the naked eye as a bright point that does not twinkle.

    Computed

  5. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  6. /Oppositions

    Mars at opposition (magnitude -1.2)

    Visible most of the night: rises at sunset and sets at sunrise.

    Visible to the naked eye as a bright point that does not twinkle.

    Computed

  7. /Lunar eclipses

    Penumbral lunar eclipse

    Visible to the naked eye wherever the Moon is above the horizon at that time.

    No protection needed: a lunar eclipse is safe to watch with the naked eye.

    Computed

  8. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  9. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  2. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  3. /Elongations

    Mercury at greatest morning elongation (27.6°)

    Look low in the east before sunrise.

    Computed

  4. /Equinoxes and solstices

    March equinox

    Applies worldwide.

    Computed

  5. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  6. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  2. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  3. /Conjunctions

    Mercury–Saturn conjunction, 0.6° apart

    Too close to the Sun (10°) to observe easily.

    Computed

  4. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  5. /Meteor showers

    Lyrids peak (up to 18 meteors/hour)

    Best from the northern hemisphere. Radiant: Lyra. Parent: C/1861 G1 (Thatcher).

    Moon 99% illuminated: only the brightest meteors will show.

    Indicative

  6. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Meteor showers

    Eta Aquariids peak (up to 50 meteors/hour)

    Best from the southern hemisphere. Radiant: Aquarius. Parent: 1P/Halley.

    Moon 0% illuminated: good conditions away from city lights.

    Indicative

  2. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  3. /Conjunctions

    Venus–Saturn conjunction, 0.6° apart

    The two planets appear close together in the sky; distance from the Sun: 26°.

    Computed

  4. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  5. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  6. /Elongations

    Mercury at greatest evening elongation (22.9°)

    Look low in the west after sunset.

    Computed

  7. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  2. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  3. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  4. /Equinoxes and solstices

    June solstice

    Applies worldwide.

    Computed

  5. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  1. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  2. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  3. /Elongations

    Mercury at greatest morning elongation (20.7°)

    Look low in the east before sunrise.

    Computed

  4. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  5. /Lunar eclipses

    Penumbral lunar eclipse

    Visible to the naked eye wherever the Moon is above the horizon at that time.

    No protection needed: a lunar eclipse is safe to watch with the naked eye.

    Computed

  6. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  7. /Meteor showers

    Southern Delta Aquariids peak (up to 25 meteors/hour)

    Best from the southern hemisphere. Radiant: Aquarius. Parent: 96P/Machholz.

    Moon 17% illuminated: good conditions away from city lights.

    Indicative

  1. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  2. /Solar eclipses

    Total solar eclipse

    Greatest eclipse near latitude 25.5°, longitude 33.2°. Visibility depends strongly on location.

    Never look at the Sun without ISO 12312-2 certified filters, not even during a partial eclipse.

    Computed

  3. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  4. /Conjunctions

    Mercury–Venus conjunction, 0.5° apart

    Too close to the Sun (1°) to observe easily.

    Computed

  5. /Meteor showers

    Perseids peak (up to 100 meteors/hour)

    Best from the northern hemisphere. Radiant: Perseus. Parent: 109P/Swift–Tuttle.

    Moon 77% illuminated: only the brightest meteors will show.

    Indicative

  6. /Lunar eclipses

    Penumbral lunar eclipse

    Visible to the naked eye wherever the Moon is above the horizon at that time.

    No protection needed: a lunar eclipse is safe to watch with the naked eye.

    Computed

  7. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  8. /Conjunctions

    Mercury–Jupiter conjunction, 0.6° apart

    Too close to the Sun (9°) to observe easily.

    Computed

  9. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  10. /Conjunctions

    Venus–Jupiter conjunction, 0.5° apart

    Too close to the Sun (4°) to observe easily.

    Computed

  11. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  1. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  2. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  3. /Equinoxes and solstices

    September equinox

    Applies worldwide.

    Computed

  4. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed

  5. /Elongations

    Mercury at greatest evening elongation (26.3°)

    Look low in the west after sunset.

    Computed

  6. /Oppositions

    Neptune at opposition (magnitude 7.8)

    Visible most of the night: rises at sunset and sets at sunrise.

    You will need binoculars or a small telescope.

    Computed

  7. /Moon phases

    New Moon

    Applies worldwide.

    Dark nights: ideal for galaxies, nebulae and the Milky Way.

    Computed

  1. /Moon phases

    First quarter Moon

    Applies worldwide.

    Computed

  2. /Meteor showers

    Draconids peak (up to variable meteors/hour)

    Best from the northern hemisphere. Radiant: Draco. Parent: 21P/Giacobini–Zinner.

    Moon 55% illuminated: good conditions away from city lights.

    Indicative

  3. /Moon phases

    Full Moon

    Applies worldwide.

    The full Moon brightens the sky and hides faint objects.

    Computed

  4. /Oppositions

    Saturn at opposition (magnitude -0.1)

    Visible most of the night: rises at sunset and sets at sunrise.

    Visible to the naked eye as a bright point that does not twinkle.

    Computed

  5. /Meteor showers

    Orionids peak (up to 20 meteors/hour)

    Visible from both hemispheres. Radiant: Orion. Parent: 1P/Halley.

    Moon 69% illuminated: only the brightest meteors will show.

    Indicative

  6. /Moon phases

    Last quarter Moon

    Applies worldwide.

    Computed