January 2009 Événements célestes

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

Aperçu des événements célestes mensuels

26 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

January 2009 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: 1.7
Constellation: Aquarius
Angular diameter: 9.2"
Status: near superior conjunction

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

Ascension droite: 20h34m26s
Déclinaison: -16°50'50"

Venus

Excellent
Magnitude apparente: -4.5
Constellation: Pisces
Angular diameter: 24.4"
Status: near superior 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: 22h54m29s
Déclinaison: -07°22'03"

Mars

Excellent
Magnitude apparente: 1.2
Constellation: Capricornus
Angular diameter: 3.9"
Status: near eastern quadrature

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

Ascension droite: 19h01m43s
Déclinaison: -23°30'07"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Aquarius
Angular diameter: 32.4"
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: 20h18m13s
Déclinaison: -20°05'21"

Saturn

Excellent
Magnitude apparente: 0.7
Constellation: Virgo
Angular diameter: 18.9"
Status: near eastern quadrature

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

Ascension droite: 11h32m24s
Déclinaison: +05°16'42"

Uranus

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

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

Ascension droite: 23h23m19s
Déclinaison: -04°45'39"

Neptune

Fair
Magnitude apparente: 7.8
Constellation: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Ascension droite: 21h41m24s
Déclinaison: -14°13'21"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Virgo
Angular diameter: 12414.0"
Status: Moon illumination 80.6%

Observation tip: Moon illumination 80.6%; good for observing lunar surface detail

Ascension droite: 11h08m05s
Déclinaison: +02°01'50"