April 1940 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 4 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

April 1940 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 0.4
Constellation: Pisces
Angular diameter: 7.4"
Status: near inferior conjunction

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

Ascension droite: 23h54m29s
Déclinaison: -03°11'41"

Venus

Excellent
Magnitude apparente: -4.4
Constellation: Gemini
Angular diameter: 22.8"
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: 04h33m28s
Déclinaison: +25°17'42"

Mars

Excellent
Magnitude apparente: 1.6
Constellation: Gemini
Angular diameter: 4.4"
Status: near western quadrature

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

Ascension droite: 04h27m23s
Déclinaison: +22°43'41"

Jupiter

Excellent
Magnitude apparente: -2.1
Constellation: Aries
Angular diameter: 33.1"
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: 01h25m09s
Déclinaison: +07°48'10"

Saturn

Excellent
Magnitude apparente: 0.4
Constellation: Taurus
Angular diameter: 16.2"
Status: near western quadrature

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

Ascension droite: 02h06m43s
Déclinaison: +10°29'10"

Uranus

Fair
Magnitude apparente: 5.9
Constellation: Taurus
Angular diameter: 3.4"
Status: near western quadrature

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

Ascension droite: 03h12m12s
Déclinaison: +17°35'16"

Neptune

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

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

Ascension droite: 11h37m30s
Déclinaison: +03°47'44"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Cancer
Angular diameter: 12250.5"
Status: Moon illumination 43.9%

Observation tip: Moon illumination 43.9%; good for observing lunar surface detail

Ascension droite: 07h13m38s
Déclinaison: +17°01'53"