Månens faser under December

• 2025-12-04: Månen närmast jorden (357000 km)
• 2025-12-05: Fullmåne
• 2025-12-11: Avtagande halvmåne
• 2025-12-17: Månen längst från jorden (406300 km)
• 2025-12-20: Nymåne
• 2025-12-27: Växande halvmåne
• 2026-01-01: Månen närmast jorden (360300 km)
• 2026-01-03: Fullmåne

Kvällshimlen under December

• 2025-12-04: Månen 0.8° norr om Pleiaderna (Alcyone)
• 2025-12-04: Månen 11° norr om Aldebaran
• 2025-12-07: Månen 4° norr om Jupiter
• 2025-12-07: Månen 3° söder om Pollux
• 2025-12-07: Merkurius i max västlig elongation, 21°
• 2025-12-10: Månen 0.7° norr om Regulus
• 2025-12-14: Geminiderna i maximum
• 2025-12-14: Månen 1.4° söder om Spica
• 2025-12-17: (3) Juno i konjunktion med solen
• 2025-12-18: Månen 6° söder om Merkurius
• 2025-12-18: Månen 0.4° söder om Antares
• 2025-12-18: Merkurius 6° norr om Antares
• 2025-12-21: Vintersolstånd
• 2025-12-22: Ursiderna i maximum
• 2025-12-27: Månen 4° norr om Saturnus
• 2025-12-31: Månen 1° norr om Pleiaderna (Alcyone)
• 2026-01-01: Månen 11° N om Aldebaran
• 2026-01-03: Solen närmast, 0.983 astronomiska enheter
• 2026-01-03: Månen 4° norr om Jupiter
• 2026-01-04: Månen °° söder om Pollux
• 2026-01-04: Kvadrantiderna i maximum, radianten i Björnvaktaren

Rymdfartshistoria under December

• 1960-12-01: Korabl-Sputnik 3, Cospar-ID 1960-017A
• 1995-12-02: Solar and Heliospheric Observatory, Cospar-ID 1995-065A
• 1965-12-03: Luna 8, Cospar-ID 1965-099A
• 2014-12-03: Hayabusa2, Cospar-ID 2014-076A
• 1959-12-04: Little Joe 2, Cospar-ID LILJOE-2
• 1965-12-04: Gemini 7, Cospar-ID 1965-100A
• 1957-12-06: Vanguard TV3, Cospar-ID VAGT3
• 1958-12-06: Pioneer 3, Cospar-ID 1958-008A
• 1972-12-07: Apollo 17, Cospar-ID 1972-096A
• 1998-12-10: Astrid 2, Cospar-ID 1998-072B
• 1999-12-10: XMM-Newton, Cospar-ID 1999-066A
• 1971-12-11: Ariel 4, Cospar-ID 1971-109A
• 1961-12-12: OSCAR 1, Cospar-ID 1961-034B
• 1967-12-13: Pioneer 8, Cospar-ID 1967-123A
• 2009-12-14: Wide-field Infrared Survey Explorer, Cospar-ID 2009-071A
• 1960-12-15: Pioneer P-31, Cospar-ID PIONZ
• 1965-12-15: Gemini 6A, Cospar-ID 1965-104A
• 1984-12-15: Vega 1, Cospar-ID 1984-125A
• 1965-12-16: Pioneer 6, Cospar-ID 1965-105A
• 1960-12-19: Mercury Redstone 1A, Cospar-ID MERCR1A
• 2013-12-19: Gaia, Cospar-ID 2013-074A
• 1968-12-21: Apollo 8, Cospar-ID 1968-118A
• 1984-12-21: Vega 2, Cospar-ID 1984-128A
• 1961-12-22: SAMOS 5, Cospar-ID 1961-035A

Aktiviteter i December

• 2025-12-04: Fysikshow i Albanova.
• 2025-12-06: Trekdag i Skarpnäck.
• 2025-12-08: Nobelföreläsningar.
• 2025-12-14: Geminiderna i maximum
• 2025-12-22: Ursiderna i maximum
• 2026-01-04: Kvadrantiderna i maximum
• 2026-01-10: Trekdag i Skarpnäck.

Newsfeed

• 2025-11-12: Astronomers Discover a Superheated Star Factory in the Early Universe
• 2025-10-28: Young Star Cooks Surroundings with Different Temperatures
• 2025-10-23: Astronomers Share Largest Molecular Survey To-date: GOTHAM Legacy Data Goes Public
• 2025-10-20: Discovery of a Brown Dwarf Orbiting a Red Dwarf through the Synergy of Ground- and Space-Based Observatories
• 2025-10-09: Astronomers Detect Lowest Mass Dark Object Yet in Distant Universe
• 2025-09-19: Astronomers Find Black Hole With Tremendous Growth Using NASA’s Chandra X-Ray Observatory
• 2025-09-04: Neighboring Star’s Warped Ring Shaped by Evolving Planets
• 2025-08-05: Baby Star Sets off Explosion, Gets Caught in Blast
• 2025-07-24: NASA’s Hubble, Chandra Spot Rare Type of Black Hole Eating a Star
• 2025-07-18: Groundbreaking Magnetic Field Discovery Near Massive Protostar Made Possible by NSF NRAO Very Large Array
• 2025-07-17: Space’s Spinning Enigma: A ’Unicorn’ Object Defies Astrophysics
• 2025-07-16: Astronomers Discover Massive Molecular Cloud Hidden in Milky Way
• 2025-07-15: Astronomers Discover Rare Distant Object in Sync with Neptune
• 2025-07-14: Subaru Telescope Discovers ’Fossil’ of the Early Solar System
• 2025-07-07: How ’Ice Cubes’ Survive in the Milky Way’s Blazing Bubbles
• 2025-07-01: ALMA Reveals Stunning Details of Infant Galaxies in the Early Universe
• 2025-06-16: Largest Oort Cloud Comet Ever Observed Reveals Its Secrets with ALMA’s Powerful Gaze
• 2025-06-13: Unusual stellar nurseries near our galaxy’s center puzzle scientists
• 2025-06-03: Cosmic Himalayas Quasar Cluster Defies Explanation
• 2025-05-22: ALMA Measures Evolution of Monster Barred Spiral Galaxy
• 2025-05-21: Spiral Galaxy NGC 748
• 2025-05-05: Unveiling the Birth Secrets of Massive Stars with the NSF NRAO Very Large Array

2019-01-21 Blodmåne (Foto: Magnus Norden)

2014-11-25 Skymning över Brunnsviken (Foto: Magnus Norden)

2011-12-10 Månförmörkelse (Foto: Magnus Norden)