December 1931 Événements célestes

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

Aperçu des événements célestes mensuels

28 événements célestes au total, dont 4 phases lunaires et 2 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 1931 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 1.2
Constellation: Capricornus
Angular diameter: 9.1"
Status: near superior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Ascension droite: 18h23m58s
Déclinaison: -23°16'46"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Capricornus
Angular diameter: 11.1"
Status: near greatest western elongation

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: 19h12m33s
Déclinaison: -23°54'17"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Capricornus
Angular diameter: 3.9"
Status: near western quadrature

Observation tip: Visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Ascension droite: 18h16m13s
Déclinaison: -24°16'56"

Jupiter

Excellent
Magnitude apparente: -2.3
Constellation: Leo
Angular diameter: 41.4"
Status: near eastern 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: 09h40m52s
Déclinaison: +14°45'10"

Saturn

Excellent
Magnitude apparente: 0.6
Constellation: Capricornus
Angular diameter: 15.3"
Status: near western quadrature

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

Ascension droite: 19h34m25s
Déclinaison: -21°44'25"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Ascension droite: 00h58m03s
Déclinaison: +05°29'57"

Neptune

Fair
Magnitude apparente: 7.9
Constellation: Virgo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Ascension droite: 10h39m44s
Déclinaison: +09°17'07"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Pisces
Angular diameter: 11723.8"
Status: Moon illumination 31.8%

Observation tip: Moon illumination 31.8%; good for observing lunar surface detail

Ascension droite: 22h14m26s
Déclinaison: -13°41'53"