January 1981 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 0 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

January 1981 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -1.0
Constellation: Aquarius
Angular diameter: 5.0"
Status: near greatest western elongation

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

Ascension droite: 20h27m06s
Déclinaison: -21°16'18"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Capricornus
Angular diameter: 10.7"
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: 18h20m13s
Déclinaison: -23°05'41"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Aquarius
Angular diameter: 4.1"
Status: near western quadrature

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

Ascension droite: 20h58m33s
Déclinaison: -18°18'13"

Jupiter

Excellent
Magnitude apparente: -2.1
Constellation: Libra
Angular diameter: 38.5"
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: 12h39m46s
Déclinaison: -02°47'41"

Saturn

Excellent
Magnitude apparente: 0.8
Constellation: Libra
Angular diameter: 18.0"
Status: near eastern quadrature

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

Ascension droite: 12h39m43s
Déclinaison: -01°38'41"

Uranus

Fair
Magnitude apparente: 5.6
Constellation: Scorpius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Ascension droite: 15h47m32s
Déclinaison: -19°43'41"

Neptune

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

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

Ascension droite: 17h32m08s
Déclinaison: -21°58'58"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Taurus
Angular diameter: 12585.1"
Status: Moon illumination 67.8%

Observation tip: Moon illumination 67.8%; good for observing lunar surface detail

Ascension droite: 02h58m38s
Déclinaison: +11°28'44"