December 1957 Événements célestes

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

Aperçu des événements célestes mensuels

20 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 1957 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 0.1
Constellation: Capricornus
Angular diameter: 8.0"
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: 18h49m41s
Déclinaison: -23°54'12"

Venus

Excellent
Magnitude apparente: -4.8
Constellation: Aquarius
Angular diameter: 35.4"
Status: near superior 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: 20h37m33s
Déclinaison: -20°24'03"

Mars

Excellent
Magnitude apparente: 1.6
Constellation: Scorpius
Angular diameter: 3.9"
Status: near eastern quadrature

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

Ascension droite: 15h28m35s
Déclinaison: -18°38'15"

Jupiter

Excellent
Magnitude apparente: -1.8
Constellation: Libra
Angular diameter: 33.2"
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: 13h38m38s
Déclinaison: -08°58'43"

Saturn

Excellent
Magnitude apparente: 0.4
Constellation: Sagittarius
Angular diameter: 15.1"
Status: near eastern quadrature

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

Ascension droite: 17h06m03s
Déclinaison: -21°30'50"

Uranus

Fair
Magnitude apparente: 5.4
Constellation: Leo
Angular diameter: 4.0"
Status: near eastern quadrature

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

Ascension droite: 08h55m53s
Déclinaison: +18°01'01"

Neptune

Fair
Magnitude apparente: 8.0
Constellation: Scorpius
Angular diameter: 2.2"
Status: near eastern quadrature

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

Ascension droite: 14h09m30s
Déclinaison: -11°14'55"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Libra
Angular diameter: 12560.0"
Status: Moon illumination 41.5%

Observation tip: Moon illumination 41.5%; good for observing lunar surface detail

Ascension droite: 12h05m01s
Déclinaison: -03°56'34"