December 2020 Événements célestes

Lieu d'observation:Beijing (39.904°, 116.407°)

Aperçu des événements célestes mensuels

22 événements célestes au total, dont 4 phases lunaires et 1 événements planétaires.

Événements célestes quotidiens

Toutes les heures en heure locale (Asia/Shanghai)

Group Date Lever/Coucher du soleil Lever/Coucher de la lune Phase lunaire Événements célestes

Planetary outlook

December 2020 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -1.1
Constellation: Sagittarius
Angular diameter: 4.7"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Ascension droite: 17h18m46s
Déclinaison: -24°05'38"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Scorpius
Angular diameter: 11.2"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Ascension droite: 15h48m55s
Déclinaison: -18°42'17"

Mars

Excellent
Magnitude apparente: -0.7
Constellation: Aries
Angular diameter: 12.5"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Ascension droite: 01h16m16s
Déclinaison: +08°33'00"

Jupiter

Excellent
Magnitude apparente: -2.0
Constellation: Aquarius
Angular diameter: 33.6"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its moons are easy to spot and it is excellent for telescope observing

Ascension droite: 20h05m02s
Déclinaison: -20°49'03"

Saturn

Excellent
Magnitude apparente: 0.7
Constellation: Aquarius
Angular diameter: 15.4"
Status: near western quadrature

Observation tip: Visible to the naked eye; Saturn’s rings require a telescope to see clearly

Ascension droite: 20h08m05s
Déclinaison: -20°33'40"

Uranus

Fair
Magnitude apparente: 5.7
Constellation: Taurus
Angular diameter: 3.7"
Status: near western quadrature

Observation tip: Binoculars are recommended; Binoculars or a telescope are recommended

Ascension droite: 02h19m40s
Déclinaison: +13°27'05"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Pisces
Angular diameter: 2.3"
Status: near western quadrature

Observation tip: A telescope is required; A telescope is required; Neptune appears blue-green

Ascension droite: 23h18m26s
Déclinaison: -05°39'12"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Sagittarius
Angular diameter: 12731.9"
Status: Moon illumination 0.1%

Observation tip: Moon illumination 0.1%; good for observing lunar surface detail

Ascension droite: 17h50m30s
Déclinaison: -24°08'50"