January 2018 Événements célestes

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

Aperçu des événements célestes mensuels

24 événements célestes au total, dont 5 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

January 2018 mid-month observing conditions

Mercury

Excellent
Magnitude apparente: -0.4
Constellation: Capricornus
Angular diameter: 5.4"
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: 18h22m31s
Déclinaison: -23°19'08"

Venus

Excellent
Magnitude apparente: -3.9
Constellation: Capricornus
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: 19h53m19s
Déclinaison: -21°51'09"

Mars

Excellent
Magnitude apparente: 1.4
Constellation: Scorpius
Angular diameter: 5.1"
Status: near eastern quadrature

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

Ascension droite: 15h22m45s
Déclinaison: -17°42'51"

Jupiter

Excellent
Magnitude apparente: -1.9
Constellation: Scorpius
Angular diameter: 34.2"
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: 15h07m55s
Déclinaison: -16°28'04"

Saturn

Excellent
Magnitude apparente: 0.5
Constellation: Capricornus
Angular diameter: 15.1"
Status: near eastern quadrature

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

Ascension droite: 18h13m00s
Déclinaison: -22°30'53"

Uranus

Fair
Magnitude apparente: 5.8
Constellation: Aries
Angular diameter: 3.5"
Status: near western quadrature

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

Ascension droite: 01h32m06s
Déclinaison: +09°01'13"

Neptune

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

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

Ascension droite: 22h55m56s
Déclinaison: -07°48'10"

Moon

Excellent
Magnitude apparente: -12.7
Constellation: Capricornus
Angular diameter: 11446.8"
Status: Moon illumination 4.0%

Observation tip: Moon illumination 4.0%; good for observing lunar surface detail

Ascension droite: 18h08m58s
Déclinaison: -19°50'20"