December 2054 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

20 sky events total, including 4 moon phases and 2 planetary events.

Daily Sky Events

All times are in local time (Asia/Shanghai)

Group Date Sunrise/Sunset Moonrise/Moonset Moon Phase Sky Events

Planetary outlook

December 2054 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.8
Constellation: Capricornus
Angular diameter: 4.9"
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

Right ascension: 18h13m56s
Declination: -25°27'45"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Capricornus
Angular diameter: 10.3"
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

Right ascension: 18h38m22s
Declination: -24°10'22"

Mars

Excellent
Apparent magnitude: -1.8
Constellation: Gemini
Angular diameter: 16.4"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 05h48m06s
Declination: +26°16'14"

Jupiter

Excellent
Apparent magnitude: -1.8
Constellation: Sagittarius
Angular diameter: 31.3"
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

Right ascension: 17h10m56s
Declination: -22°30'59"

Saturn

Excellent
Apparent magnitude: 1.0
Constellation: Pisces
Angular diameter: 17.4"
Status: near western quadrature

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

Right ascension: 23h28m59s
Declination: -05°44'38"

Uranus

Fair
Apparent magnitude: 5.5
Constellation: Libra
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 12h53m02s
Declination: -04°56'35"

Neptune

Fair
Apparent magnitude: 7.7
Constellation: Gemini
Angular diameter: 2.4"
Status: near western quadrature

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

Right ascension: 04h15m29s
Declination: +19°33'49"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Gemini
Angular diameter: 12419.7"
Status: Moon illumination 99.9%

Observation tip: Moon illumination 99.9%; good for observing lunar surface detail

Right ascension: 05h34m19s
Declination: +19°01'52"