December 2030 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

21 sky events total, including 5 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 2030 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 5.6
Constellation: Sagittarius
Angular diameter: 9.9"
Status: near superior conjunction

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 17h38m17s
Declination: -21°44'36"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Capricornus
Angular diameter: 10.1"
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: 18h29m36s
Declination: -24°11'47"

Mars

Excellent
Apparent magnitude: 1.3
Constellation: Libra
Angular diameter: 5.4"
Status: near eastern quadrature

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

Right ascension: 12h51m53s
Declination: -03°44'26"

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: 16h40m50s
Declination: -21°36'38"

Saturn

Excellent
Apparent magnitude: -0.3
Constellation: Gemini
Angular diameter: 20.4"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Right ascension: 04h09m54s
Declination: +18°56'00"

Uranus

Fair
Apparent magnitude: 5.5
Constellation: Gemini
Angular diameter: 3.9"
Status: near western quadrature

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

Right ascension: 05h19m47s
Declination: +23°12'28"

Neptune

Fair
Apparent magnitude: 7.7
Constellation: Aries
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 00h41m21s
Declination: +02°45'47"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Leo
Angular diameter: 11664.4"
Status: Moon illumination 78.5%

Observation tip: Moon illumination 78.5%; good for observing lunar surface detail

Right ascension: 09h16m21s
Declination: +10°37'06"