May 2009 Événements célestes

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

Aperçu des événements célestes mensuels

20 événements célestes au total, dont 5 phases lunaires et 1 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

May 2009 mid-month observing conditions

Mercury

Fair
Magnitude apparente: 5.3
Constellation: Taurus
Angular diameter: 11.9"
Status: near superior conjunction

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

Ascension droite: 03h49m09s
Déclinaison: +20°06'25"

Venus

Excellent
Magnitude apparente: -4.7
Constellation: Aries
Angular diameter: 31.6"
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: 00h40m16s
Déclinaison: +03°39'46"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Aries
Angular diameter: 4.6"
Status: near eastern quadrature

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

Ascension droite: 01h05m12s
Déclinaison: +05°47'13"

Jupiter

Excellent
Magnitude apparente: -2.3
Constellation: Aquarius
Angular diameter: 39.5"
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: 21h52m03s
Déclinaison: -13°42'32"

Saturn

Excellent
Magnitude apparente: 0.8
Constellation: Virgo
Angular diameter: 18.5"
Status: near western quadrature

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

Ascension droite: 11h07m50s
Déclinaison: +07°57'03"

Uranus

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

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

Ascension droite: 23h45m33s
Déclinaison: -02°22'26"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Aquarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Ascension droite: 21h55m09s
Déclinaison: -13°04'18"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Aquarius
Angular diameter: 11503.3"
Status: Moon illumination 71.5%

Observation tip: Moon illumination 71.5%; good for observing lunar surface detail

Ascension droite: 20h04m51s
Déclinaison: -20°39'56"