• Uranus at Opposition

    Uranus will be in opposition to the Sun on this date; this is when the Earth is positioned between the Sun and Uranus. 

  • Conjunction of the Moon and the Pleiades

    The nearly-full Moon passes very close to the Pleiades after sunset in the eastern sky. The Moon itself will be so bright that you might have a hard time seeing […]

  • Full Moon

    The Full Moon rises at sunset, and is visible all night. The Vatican Observatory's monthly Full Moon Meetup for Sacred Space Astronomy subscribers is held at 10:00 AM Tucson time.

  • Last Quarter Moon

    The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.

  • Winter Solstice

    The winter solstice, also called the hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun.

  • Ursids Meteor Shower

    The Ursids peak just before Christmas with rates of 5-10 meteors per hour during the late morning hours.

  • Earth at Perihelion

    Earth will be at the closest point in its orbit around the Sun on this date - 91,403,034 miles.

  • Anniversary of the 2013 Chelyabinsk Asteroid Impact Event

    On February 15 2013 an asteroid exploded in the sky over the city of Chelyabinsk, in the the southern Ural region of Russia. The shock wave blew out windows all over the city, injuring over 1600 people, and damaged several buildings.

  • New Moon

    New Moon. By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely in shadow then. Pictured here is the traditional New Moon, the earliest visible waxing crescent, which signals the start of a new month in many […]

  • Full Moon 2026

    The Full Moon rises at sunset, and is visible all night. The Vatican Observatory's monthly Full Moon Meetup for Sacred Space Astronomy subscribers is held at 10:00 AM Tucson time.