• Friday

    — Asteroid 2003 EH,
    Worldwide
    The Quadrantid shower is known for its brief, intense peak, lasting only a few hours. Appearing to radiate from Constellation Quadrans Muralis, there can be 25-120 meteors...
  • Saturday

    — Asteroid 3200 Phaethon,
    Worldwide
    Usually strongest meteor shower yearly, up to 150 hourly. Moon is 30% full.
  • Sunday

    — Comet Tempel-Tuttle (55P),
    Worldwide
    From Comet Tempel-Tuttle (55P) dust cloud, peak rate 15 per hour. Moon is 9% full.

    Tuesday

    — Comet Encke (2P),
    Worldwide
    From Comet Encke dust cloud, with peak rate 5 per hour. Moon is 53% full.

    Sunday

    — Center For Inquiry (CFI),
    Worldwide
    Various science and astronomy-related events to be held worldwide, such as star parties, lectures and viewings of his show Cosmos. Sagan Day was created in 2009 to honor...

    Tuesday

    — Comet Encke (2P),
    Worldwide
    Known for fireballs in a swarm year such as 2025, they will have to compete with a Full Moon Nov 5. Appearing in the Constellation Taurus, they...
  • Monday

    — Halley’s Comet,
    Worldwide
    One of 2 showers yearly from Halley’s Comet dust, one dust cloud from Halley's path toward the Sun, and one from its path away. Orionids appear to...

    Wednesday

    — Comet 21P / Giacobini-Zinner,
    Worldwide
    Appearing when Earth passes through the tail of Comet 21P / Giacobini-Zinner, the comet was a perihelion in 2025; speculation has arisen this may be a year...

    Saturday

    — World Space Week Association,
    Worldwide
    Celebrating international contributions of space science for betterment of the human condition; Oct 4 is 68th observation of 1st Space mission Sputnik One launched by Soviet Union...
    — International Observe the Moon Night Organization,
    Worldwide
    For observation, appreciation, understanding of the Moon / its connection to planetary science / exploration; 1st quarter Moon is best time due to shallow angle of sunlight...
    — National Aeronautics and Space Administration (NASA), Indian Space Research Organisation (ISRO), Japan Aerospace Exploration Agency (JAXA), European Space Agency (ESA), Australian Space Agency (ASA), Canadian Space Agency (CSA-ASC), Italian Space Agency (ASI), others,
    Worldwide
    48-hour hackathon in French and English for space enthusiasts, programmers, designers, engineers, entrepreneurs and students; 2800+ local events and online
  • Saturday

    — The Astronomical League,
    Worldwide
    Astronomical societies, planetariums, museums and observatories sponsor public viewing sessions, presentations and workshops.

    Monday

    — Sun-Earth,
    Worldwide
    The Sun rises exactly in east traveling through sky for 12 hours, sets exactly in west; every place on Earth experiences a ~12-hour day, 18:19 UTC (08:19...