September 2012 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 2 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 2012 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -1.4
Constellation: Virgo
Angular diameter: 4.8"
Status: near greatest western elongation

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

Ascension droite: 11h49m08s
Déclinaison: +02°38'00"

Venus

Excellent
Magnitude apparente: -4.2
Constellation: Leo
Angular diameter: 17.7"
Status: near inferior conjunction

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: 08h45m27s
Déclinaison: +17°04'03"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Scorpius
Angular diameter: 5.0"
Status: near western quadrature

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

Ascension droite: 14h48m05s
Déclinaison: -16°53'19"

Jupiter

Excellent
Magnitude apparente: -2.4
Constellation: Gemini
Angular diameter: 41.0"
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: 04h58m30s
Déclinaison: +21°52'20"

Saturn

Excellent
Magnitude apparente: 0.8
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: 13h46m00s
Déclinaison: -08°30'33"

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: 00h27m20s
Déclinaison: +02°08'09"

Neptune

Fair
Magnitude apparente: 7.7
Constellation: Pisces
Angular diameter: 2.4"
Status: near western quadrature

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

Ascension droite: 22h13m44s
Déclinaison: -11°38'18"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Virgo
Angular diameter: 12381.4"
Status: Moon illumination 1.7%

Observation tip: Moon illumination 1.7%; good for observing lunar surface detail

Ascension droite: 10h32m21s
Déclinaison: +03°49'48"