December 1984 Événements célestes

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

Aperçu des événements célestes mensuels

24 événements célestes au total, dont 4 phases lunaires et 3 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 1984 mid-month observing conditions

Mercury

Fair
Magnitude apparente: 5.9
Constellation: Sagittarius
Angular diameter: 9.9"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Ascension droite: 17h26m41s
Déclinaison: -21°17'25"

Venus

Excellent
Magnitude apparente: -4.2
Constellation: Aquarius
Angular diameter: 17.3"
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: 20h39m24s
Déclinaison: -20°41'57"

Mars

Excellent
Magnitude apparente: 0.8
Constellation: Aquarius
Angular diameter: 5.8"
Status: near western quadrature

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

Ascension droite: 21h39m41s
Déclinaison: -15°17'02"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Capricornus
Angular diameter: 32.6"
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: 19h16m20s
Déclinaison: -22°30'44"

Saturn

Excellent
Magnitude apparente: 0.6
Constellation: Scorpius
Angular diameter: 15.5"
Status: near eastern quadrature

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

Ascension droite: 15h24m30s
Déclinaison: -16°32'17"

Uranus

Fair
Magnitude apparente: 5.7
Constellation: Sagittarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Ascension droite: 16h52m07s
Déclinaison: -22°31'29"

Neptune

Fair
Magnitude apparente: 8.0
Constellation: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

Ascension droite: 18h03m38s
Déclinaison: -22°19'29"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Virgo
Angular diameter: 12504.4"
Status: Moon illumination 57.4%

Observation tip: Moon illumination 57.4%; good for observing lunar surface detail

Ascension droite: 11h11m50s
Déclinaison: +10°35'06"