April 2018 Événements célestes

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

Aperçu des événements célestes mensuels

21 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

April 2018 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 1.5
Constellation: Aries
Angular diameter: 10.5"
Status: near greatest eastern elongation

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

Ascension droite: 00h18m19s
Déclinaison: +01°27'26"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Taurus
Angular diameter: 10.9"
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: 03h02m41s
Déclinaison: +17°21'42"

Mars

Excellent
Magnitude apparente: -0.0
Constellation: Capricornus
Angular diameter: 9.5"
Status: near eastern quadrature

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

Ascension droite: 19h07m49s
Déclinaison: -23°15'57"

Jupiter

Excellent
Magnitude apparente: -2.5
Constellation: Scorpius
Angular diameter: 43.8"
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: 15h16m31s
Déclinaison: -16°49'53"

Saturn

Excellent
Magnitude apparente: 0.4
Constellation: Capricornus
Angular diameter: 17.1"
Status: near eastern quadrature

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

Ascension droite: 18h39m31s
Déclinaison: -22°14'14"

Uranus

Fair
Magnitude apparente: 6.0
Constellation: Aries
Angular diameter: 3.4"
Status: near western quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Ascension droite: 01h45m50s
Déclinaison: +10°22'11"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Pisces
Angular diameter: 2.2"
Status: near eastern quadrature

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

Ascension droite: 23h07m41s
Déclinaison: -06°35'53"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Aries
Angular diameter: 12176.8"
Status: Moon illumination 1.6%

Observation tip: Moon illumination 1.6%; good for observing lunar surface detail

Ascension droite: 00h48m31s
Déclinaison: +00°30'34"