Månens faser under December
- 2023-12-04: Månen längst från jorden (404300 km)
- 2023-12-05: Avtagande halvmåne
- 2023-12-13: Nymåne
- 2023-12-16: Månen närmast jorden (367900 km)
- 2023-12-19: Växande halvmåne
- 2023-12-27: Fullmåne
Kvällshimlen under December
- 2023-12-01: Månen 1.6° söder om Pollux
- 2023-12-04: Månen 4° norr om Regulus
- 2023-12-04: Merkurius i max östlig elongation, 21°
- 2023-12-08: Månen 2° norr om Spica
- 2023-12-09: Månen 4° söder om Venus
- 2023-12-14: Månen 4° söder om Merkurius
- 2023-12-14: Geminiderna i maximum. Synliga 7-15 dec
- 2023-12-17: Månen 2° söder om Saturnus
- 2023-12-21: (4) Vesta i opposition, magn = 6.4
- 2023-12-22: Vintersolstånd
- 2023-12-22: Månen 3° norr om Jupiter
- 2023-12-22: Merkurius i undre konjunktion med solen
- 2023-12-22: Ursiderna i maximum. Synliga 17-24 dec
- 2023-12-24: Månen 1° söder om Pleiaderna (Alcyone)
- 2023-12-25: Månen 9° norr om Aldebaran
- 2023-12-28: Merkurius 4° norr om Mars
- 2023-12-28: Månen 1.7° söder om Pollux
- 2023-12-31: Månen 4° norr om Regulus
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
Händelser i December
- 2023-12-08: Nobelföreläsningar
- 2023-12-02: Trekdag i Skarpnäck
- 2023-12-14: Geminiderna i maximum
- 2023-12-22: Ursiderna i maximum
Newsfeed
- 2023-11-16: NASAs Hubble Measures the Size of the Nearest Transiting Earth-Sized Planet
- 2023-11-08: A Supermassive Black Hole’s Strong Magnetic Fields are Revealed in a New Light
- 2023-11-03: Black Holes are Messy Eaters
- 2023-10-06: Astronomers Discover First Step Toward Planet Formation
- 2023-09-28: New Proof for Black Hole Spin
- 2023-09-27: Extreme Weight Loss: Star Sheds Unexpected Amounts of Mass Just Before Going Supernova
- 2023-09-15: Supermassive Black Holes Alter Galactic Chemistry
- 2023-08-21: Rewriting the Past and Future of the Universe
- 2023-08-11: VLA Finds Megastorms on Saturn Disrupt Gas Giant’s Deep Atmosphere in Surprising Ways
- 2023-08-04: Gas Streamers Feed Triple Baby Stars
- 2023-07-19: VERA Unveils Surroundings of Rapidly Growing Black Holes
- 2023-07-14: Stellar Cradles and Graves Seen in Farthest Galaxy Ever
- 2023-07-05: Survey of Star Masses in Early Universe Analog
- 2023-06-28: Scientists use Exotic Stars to Tune into Hum from Cosmic Symphony
- 2023-06-27: A Surprise Chemical Find by ALMA May Help Detect and Confirm Protoplanets
- 2023-06-22: Molecular Filament Shielded Young Solar System from Supernova
- 2023-06-06: Signature of Very Massive First Stars Recorded in a Milky Way Star
- 2023-06-01: The Case of the Missing Jupiters: Gas Giant Planets are a No-Show around Small Red Stars
2019-01-21 Blodmåne (Foto: Magnus Norden)
2014-11-25 Skymning över Brunnsviken (Foto: Magnus Norden)
2011-12-10 Månförmörkelse (Foto: Magnus Norden)
