MAY, 2021 SKYNOTES

The phenomena of the month : January 2021
Times are given in daylight time for SCARBOROUGH (0° 25' 5" W, 54° 16' 30" N, zone 0 = UNIVERSAL TIME).

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

2021 05 01 07:43 Minimum of the variable star Algol (beta Persei)
2021 05 02 11:09 Maximum of the variable star eta Aquilae
2021 05 02 14:35 Close encounter between the Moon and Pluto (topocentric dist. centre to centre = 2.8°)
2021 05 03 16:30 Maximum of the variable star delta Cephei
2021 05 03 18:33 Close encounter between the Moon and Saturn (topocentric dist. centrre to centre = 4.5°)
2021 05 03 19:50 LAST QUARTER OF THE MOON
2021 05 04 04:32 Minimum of the variable star Algol (beta Persei)
2021 05 04 05:59 Close encounter between Mercury and the Pleiades (topocentric dist. centre to centre = 2.2°)
2021 05 04 22:36 Close encounter between the Moon and Jupiter (topocentric dist. centre to centre = 5.1°)
2021 05 05 20:53 Meteor shower : Eta Aquarids (50 meteors/hour at zenith; duration = 38.0 days)
2021 05 06 21:02 Close encounter between the Moon and Neptune (topocentric dist. centre to centre = 4.7°)
2021 05 07 01:21 Minimum of the variable star Algol (beta Persei)
2021 05 08 08:39 Minimum of the variable star beta Lyrae
2021 05 08 11:02 Meteor shower : Eta Lyrids (3 meteors/hour at zenith; duration = 11.0 days)
2021 05 09 01:18 Maximum of the variable star delta Cephei
2021 05 09 15:24 Maximum of the variable star eta Aquilae
2021 05 09 22:10 Minimum of the variable star Algol (beta Persei)
2021 05 10 18:40 Maximum of the variable star zeta Gemini
2021 05 11 18:59 NEW MOON
2021 05 11 21:54 Moon at apogee (geocentric dist. = 406512 km)
2021 05 12 18:59 Minimum of the variable star Algol (beta Persei)
2021 05 12 23:11 Close encounter between the Moon and Venus (topocentric dist. centre to centre = 1.4°)
2021 05 13 19:48 Close encounter between the Moon and Mercury (topocentric dist. centre to centre = 2.7°)
2021 05 14 10:05 Maximum of the variable star delta Cephei
2021 05 15 15:48 Minimum of the variable star Algol (beta Persei)
2021 05 15 22:37 Beginning of occultation of 27-epsilon Gem, Mebsuta, (magn. = 3.06)
2021 05 15 22:57 End of occultation of 27-epsilon Gem, Mebsuta, (magn. = 3.06)
2021 05 16 04:29 Close encounter between the Moon and Mars (topocentric dist. centre to centre = 0.6°)
2021 05 16 19:37 Maximum of the variable star eta Aquilae
2021 05 17 05:46 Close encounter between Venus and Aldebaran (topocentric dist. centre to centre = 5.8°)
2021 05 17 06:00 GREATEST EASTERN ELONGATION of Mercury (21.9°)
2021 05 18 12:37 Minimum of the variable star Algol (beta Persei)
2021 05 19 18:52 Maximum of the variable star delta Cephei
2021 05 19 19:13 FIRST QUARTER OF THE MOON
2021 05 19 22:20 Close encounter between the Moon and Regulus (topocentric dist. centre to centre = 4.0°)
2021 05 20 22:17 Maximum of the variable star zeta Gemini
2021 05 21 07:13 Minimum of the variable star beta Lyrae
2021 05 21 09:26 Minimum of the variable star Algol (beta Persei)
2021 05 22 08:15 Opposition of the asteroid 230 Athamantis with the Sun (dist. to the Sun = 2.488 AU; magn. = 10.2)
2021 05 23 23:51 Maximum of the variable star eta Aquilae
2021 05 24 05:38 Opposition of the asteroid 704 Interamnia with the Sun (dist. to the Sun = 3.341 AU; magn. = 9.7)
2021 05 24 06:15 Minimum of the variable star Algol (beta Persei)
2021 05 25 03:39 Maximum of the variable star delta Cephei
2021 05 25 21:21 Beginning of occultation of 41 Lib (magn. = 5.36)
2021 05 25 21:59 End of occultation of 41 Lib (magn. = 5.36)
2021 05 25 23:04 Beginning of occultation of 43-kappa Lib (magn. = 4.75)
2021 05 25 23:26 End of occultation of 43-kappa Lib (magn. = 4.75)
2021 05 26 01:52 Moon at perigee (geocentric dist. = 357311 km)
2021 05 26 11:14 FULL MOON (total eclipse of the Moon not visible in SCARBOROUGH)
2021 05 27 01:46 Comet 7P Pons-Winnecke at its perihelion (dist. to the Sun = 1.235 AU; magn. = 8.2)
2021 05 27 03:04 Minimum of the variable star Algol (beta Persei)
2021 05 29 03:15 Close encounter between Mercury and Venus (topocentric dist. centre to centre = 0.4°)
2021 05 29 20:38 Close encounter between the Moon and Pluto (topocentric dist. centre to centre = 3.1°)
2021 05 29 23:53 Minimum of the variable star Algol (beta Persei)
2021 05 30 12:26 Maximum of the variable star delta Cephei
2021 05 31 01:54 Maximum of the variable star zeta Gemini
2021 05 31 03:59 Close encounter between the Moon and Saturn (topocentric dist. centre to centre = 5.0°)
2021 05 31 04:04 Maximum of the variable star eta Aquilae

Calculations courtesy of: CoelixApex software.