December 1929 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

29 天象事件總數,包括 5 月相與 3 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 1929 mid-month observing conditions

Mercury

Excellent
視星等: -0.8
星座: 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

赤經: 18h09m39s
赤緯: -25°29'37"

Venus

Excellent
視星等: -3.9
星座: Sagittarius
Angular diameter: 10.1"
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: 16h32m28s
赤緯: -21°18'48"

Mars

Excellent
視星等: 1.3
星座: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

赤經: 17h13m00s
赤緯: -23°32'07"

Jupiter

Excellent
視星等: -2.8
星座: Gemini
Angular diameter: 48.1"
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

赤經: 04h33m14s
赤緯: +21°11'56"

Saturn

Excellent
視星等: 0.5
星座: Capricornus
Angular diameter: 15.1"
Status: near western quadrature

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

赤經: 18h07m23s
赤緯: -22°38'42"

Uranus

Fair
視星等: 5.9
星座: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

赤經: 00h28m29s
赤緯: +02°18'56"

Neptune

Fair
視星等: 7.9
星座: Virgo
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤經: 10h22m52s
赤緯: +10°47'56"

Moon

Excellent
視星等: -12.7
星座: Taurus
Angular diameter: 12776.5"
Status: Moon illumination 96.8%

Observation tip: Moon illumination 96.8%; good for observing lunar surface detail

赤經: 03h57m49s
赤緯: +22°19'18"