December 2089 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

22 天象事件總數,包括 4 月相與 2 行星事件。

每日天象事件

所有時間均為當地時間 (Asia/Shanghai)

Group 日期 日出/日落 月出/月落 月相 天象

Planetary outlook

December 2089 mid-month observing conditions

Mercury

Good
視星等: 2.8
星座: Capricornus
Angular diameter: 9.6"
Status: near superior conjunction

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

赤經: 18h09m51s
赤緯: -22°37'15"

Venus

Excellent
視星等: -3.9
星座: Sagittarius
Angular diameter: 9.8"
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

赤經: 17h30m34s
赤緯: -23°22'53"

Mars

Excellent
視星等: 1.2
星座: Capricornus
Angular diameter: 4.0"
Status: near western quadrature

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

赤經: 18h30m24s
赤緯: -24°09'49"

Jupiter

Excellent
視星等: -1.7
星座: 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

赤經: 16h12m03s
赤緯: -20°23'10"

Saturn

Excellent
視星等: -0.3
星座: Gemini
Angular diameter: 20.5"
Status: near western quadrature

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

赤經: 04h20m19s
赤緯: +19°25'29"

Uranus

Fair
視星等: 5.9
星座: Pisces
Angular diameter: 3.5"
Status: near western quadrature

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

赤經: 22h41m06s
赤緯: -09°08'28"

Neptune

Fair
視星等: 7.8
星座: Leo
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤經: 09h50m36s
赤緯: +13°24'29"

Moon

Excellent
視星等: -12.7
星座: Taurus
Angular diameter: 12253.6"
Status: Moon illumination 91.1%

Observation tip: Moon illumination 91.1%; good for observing lunar surface detail

赤經: 03h10m45s
赤緯: +14°11'25"