April 2017 Événements célestes

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

Aperçu des événements célestes mensuels

22 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 2017 mid-month observing conditions

Mercury

Good
Magnitude apparente: 3.8
Constellation: Taurus
Angular diameter: 10.9"
Status: near superior conjunction

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

Ascension droite: 02h01m33s
Déclinaison: +15°15'59"

Venus

Excellent
Magnitude apparente: -4.7
Constellation: Pisces
Angular diameter: 49.0"
Status: near greatest eastern 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: 23h41m29s
Déclinaison: +02°55'06"

Mars

Excellent
Magnitude apparente: 1.5
Constellation: Taurus
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: 03h32m14s
Déclinaison: +19°38'44"

Jupiter

Excellent
Magnitude apparente: -2.5
Constellation: Libra
Angular diameter: 44.2"
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: 13h06m23s
Déclinaison: -05°21'05"

Saturn

Excellent
Magnitude apparente: 0.3
Constellation: Sagittarius
Angular diameter: 17.4"
Status: near eastern quadrature

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

Ascension droite: 17h50m12s
Déclinaison: -22°03'44"

Uranus

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

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

Ascension droite: 01h31m36s
Déclinaison: +08°58'25"

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: 22h59m36s
Déclinaison: -07°22'33"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Sagittarius
Angular diameter: 11477.4"
Status: Moon illumination 87.4%

Observation tip: Moon illumination 87.4%; good for observing lunar surface detail

Ascension droite: 16h23m05s
Déclinaison: -16°25'25"