DECEMBER 2020

SUMMARY 

The phenomena of the month : DECEMBER 2020
Times are given for SCARBOROUGH (0° 25' 5" W, 54° 16' 31" N, zone 0 Universal Time).

Date Hour Description of the phenomenon
yyyy mm dd hh:mm

2020 12 02 18:14 Maximum of the variable star eta Aquilae
2020 12 03 05:05 Minimum of the variable star Algol (beta Persei)
2020 12 03 23:59 Close encounter between the Moon and Pollux (topocentric dist. centre to centre = 4.2°)
2020 12 04 01:51 Minimum of the variable star beta Lyrae
2020 12 04 10:16 Maximum of the variable star delta Cephei
2020 12 05 01:50 Close encounter between the Moon and M 44 (topocentric dist. centre to centre = 1.9°)
2020 12 06 01:53 Minimum of the variable star Algol (beta Persei)
2020 12 06 17:51 Comet 162P Siding Spring at its perihelion (dist. to the Sun = 1.280 AU; magn. = 12.9)
2020 12 07 02:43 Beginning of occultation of 46 Leo (magn. = 5.43)
2020 12 07 03:54 End of occultation of 46 Leo (magn. = 5.43)
2020 12 07 17:47 Opposition of the asteroid 16 Psyche with the Sun (dist. to the Sun = 2.683 AU; magn. = 9.4)
2020 12 08 00:37 LAST QUARTER OF THE MOON
2020 12 08 17:13 Meteor shower : Monocerotids (2 meteors/hour at zenith; duration = 20.0 days)
2020 12 08 22:43 Minimum of the variable star Algol (beta Persei)
2020 12 09 12:34 Maximum of the variable star zeta Gemini
2020 12 09 19:03 Maximum of the variable star delta Cephei
2020 12 09 22:29 Maximum of the variable star eta Aquilae
2020 12 11 05:16 Beginning of occultation of 95 Vir (magn. = 5.46)
2020 12 11 06:17 End of occultation of 95 Vir (magn. = 5.46)
2020 12 11 16:01 Meteor shower : Sigma Hydrids (3 meteors/hour at zenith; duration = 12.0 days)
2020 12 11 18:22 Opposition of the asteroid 79 Eurynome with the Sun (dist. to the Sun = 2.032 AU; magn. = 9.9)
2020 12 11 19:32 Minimum of the variable star Algol (beta Persei)
2020 12 12 20:42 Moon at perigee (geocentric dist. = 361773 km)
2020 12 13 06:55 Beginning of occultation of 8-beta1 Sco, Graffias, (magn. = 2.60)
2020 12 13 06:55 Beginning of occultation of 8-beta2 Sco (magn. = 4.52)
2020 12 13 07:26 End of occultation of 8-beta2 Sco (magn. = 4.52)
2020 12 13 07:27 End of occultation of 8-beta1 Sco, Graffias, (magn. = 2.60)
2020 12 13 15:41 Comet 141P Machholz at its perihelion (dist. to the Sun = 0.793 AU; magn. = 8.3)
2020 12 13 20:06 Meteor shower : Geminids (120 meteors/hour at zenith; duration = 12.0 days)
2020 12 14 09:31 Beginning of occultation of Mercure (magn. = -0.83)
2020 12 14 10:49 End of occultation of Mercure (magn. = -0.83)
2020 12 14 16:17 NEW MOON (total eclipse of the Sun not visible in SCARBOROUGH)
2020 12 14 16:21 Minimum of the variable star Algol (beta Persei)
2020 12 15 03:51 Maximum of the variable star delta Cephei
2020 12 15 14:24 Meteor shower : Coma Berenicids (3 meteors/hour at zenith; duration = 11.0 days)
2020 12 16 03:00 Mercury at its aphelion (distance to the Sun = 0.46670 AU)
2020 12 17 00:25 Minimum of the variable star beta Lyrae
2020 12 17 02:44 Maximum of the variable star eta Aquilae
2020 12 17 13:10 Minimum of the variable star Algol (beta Persei)
2020 12 19 12:43 Meteor shower : Dec. Leo Minorids (5 meteors/hour at zenith; duration = 61.0 days)
2020 12 19 16:09 Maximum of the variable star zeta Gemini
2020 12 20 03:24 SUPERIOR CONJUNCTION of Mercury with the Sun (geoc. dist. centre to centre = 1.5°)
2020 12 20 05:51 Opposition of the asteroid 13 Egeria with the Sun (dist. to the Sun = 2.393 AU; magn. = 10.0)
2020 12 20 09:59 Minimum of the variable star Algol (beta Persei)
2020 12 20 12:39 Maximum of the variable star delta Cephei
2020 12 20 22:09 Opposition of the asteroid 163 Erigone with the Sun (dist. to the Sun = 1.918 AU; magn. = 10.0)
2020 12 21 10:02 WINTER SOLSTICE
2020 12 21 12:13 Opposition of the asteroid 39 Laetitia with the Sun (dist. to the Sun = 2.704 AU; magn. = 9.8)
2020 12 21 18:27 Close encounter between Jupiter and Saturn (topocentric dist. centre to centre = 0.1°)
2020 12 21 19:55 Beginning of occultation of 30 Psc (magn. = 4.37)
2020 12 21 21:02 End of occultation of 30 Psc (magn. = 4.37)
2020 12 21 21:58 Beginning of occultation of 33 Psc (magn. = 4.61)
2020 12 21 23:01 End of occultation of 33 Psc (magn. = 4.61)
2020 12 21 23:41 FIRST QUARTER OF THE MOON
2020 12 22 04:19 Meteor shower : Ursids (10 meteors/hour at zenith; duration = 9.0 days)
2020 12 23 06:48 Minimum of the variable star Algol (beta Persei)
2020 12 23 17:59 Close encounter between Venus and Antares (topocentric dist. centre to centre = 5.6°)
2020 12 24 00:57 Close encounter between the Moon and Mars (topocentric dist. centre to centre = 5.5°)
2020 12 24 06:59 Maximum of the variable star eta Aquilae
2020 12 24 16:32 Moon at apogee (geocentric dist. = 405012 km)
2020 12 24 19:38 Beginning of occultation of 65-xi1 Cet (magn. = 4.36)
2020 12 24 20:52 End of occultation of 65-xi1 Cet (magn. = 4.36)
2020 12 25 02:31 Close encounter between the Moon and Uranus (topocentric dist. centre to centre = 3.6°)
2020 12 25 21:27 Maximum of the variable star delta Cephei
2020 12 26 03:37 Minimum of the variable star Algol (beta Persei)
2020 12 27 16:04 Simultaneous transits on Jupiter: two satellites and shadow of one satellite.
2020 12 27 16:37 Simultaneous transits on Jupiter: one satellite and shadows of two satellites.
2020 12 27 17:46 Close encounter between the Moon and Aldebaran (topocentric dist. centre to centre = 3.8°)
2020 12 28 21:49 Opposition of the asteroid 52 Europa with the Sun (dist. to the Sun = 2.762 AU; magn. = 10.0)
2020 12 29 00:26 Minimum of the variable star Algol (beta Persei)
2020 12 29 19:44 Maximum of the variable star zeta Gemini
2020 12 29 23:00 Minimum of the variable star beta Lyrae
2020 12 30 03:28 FULL MOON
2020 12 31 06:15 Maximum of the variable star delta Cephei
2020 12 31 07:32 Close encounter between the Moon and Pollux (topocentric dist. centre to centre = 4.6°)
2020 12 31 11:13 Maximum of the variable star eta Aquilae
2020 12 31 21:15 Minimum of the variable star Algol (beta Persei)

(Using Coelix Software)