September 2011 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 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

September 2011 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -1.3
Constellation: Virgo
Angular diameter: 5.5"
Status: near inferior conjunction

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

Ascension droite: 10h48m05s
Déclinaison: +09°29'13"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Libra
Angular diameter: 9.8"
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: 12h01m34s
Déclinaison: +01°15'22"

Mars

Excellent
Magnitude apparente: 1.4
Constellation: Cancer
Angular diameter: 4.9"
Status: near eastern quadrature

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

Ascension droite: 07h58m59s
Déclinaison: +21°32'02"

Jupiter

Excellent
Magnitude apparente: -2.7
Constellation: Taurus
Angular diameter: 46.6"
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: 02h32m01s
Déclinaison: +13°26'25"

Saturn

Excellent
Magnitude apparente: 0.9
Constellation: Libra
Angular diameter: 15.7"
Status: near western quadrature

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

Ascension droite: 13h05m09s
Déclinaison: -04°28'45"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Aries
Angular diameter: 3.7"
Status: near eastern quadrature

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

Ascension droite: 00h12m17s
Déclinaison: +00°29'32"

Neptune

Fair
Magnitude apparente: 7.7
Constellation: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Ascension droite: 22h04m59s
Déclinaison: -12°22'22"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Aries
Angular diameter: 11458.9"
Status: Moon illumination 93.8%

Observation tip: Moon illumination 93.8%; good for observing lunar surface detail

Ascension droite: 01h08m57s
Déclinaison: +11°54'27"