December 1918 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 1 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 1918 mid-month observing conditions

Mercury

Good
視星等: 2.7
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: 18h02m38s
赤緯: -22°37'07"

Venus

Excellent
視星等: -3.9
星座: Sagittarius
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

赤經: 17h48m11s
赤緯: -23°52'32"

Mars

Excellent
視星等: 1.2
星座: Capricornus
Angular diameter: 4.5"
Status: near western quadrature

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

赤經: 19h52m07s
赤緯: -22°11'49"

Jupiter

Excellent
視星等: -2.7
星座: Cancer
Angular diameter: 46.5"
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: 06h57m06s
赤緯: +22°47'23"

Saturn

Excellent
視星等: 0.4
星座: Virgo
Angular diameter: 19.0"
Status: near eastern quadrature

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

赤經: 10h03m24s
赤緯: +13°18'28"

Uranus

Fair
視星等: 5.9
星座: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

赤經: 21h48m12s
赤緯: -14°02'33"

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: 08h45m46s
赤緯: +17°54'19"

Moon

Excellent
視星等: -12.7
星座: Taurus
Angular diameter: 12774.8"
Status: Moon illumination 89.4%

Observation tip: Moon illumination 89.4%; good for observing lunar surface detail

赤經: 02h43m58s
赤緯: +18°33'35"