December 2020 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 2020 mid-month observing conditions

Mercury

Excellent
視星等: -1.1
星座: Sagittarius
Angular diameter: 4.7"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤經: 17h18m46s
赤緯: -24°05'38"

Venus

Excellent
視星等: -3.9
星座: Scorpius
Angular diameter: 11.2"
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: 15h48m55s
赤緯: -18°42'17"

Mars

Excellent
視星等: -0.7
星座: Aries
Angular diameter: 12.5"
Status: near western quadrature

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

赤經: 01h16m16s
赤緯: +08°33'00"

Jupiter

Excellent
視星等: -2.0
星座: Aquarius
Angular diameter: 33.6"
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: 20h05m02s
赤緯: -20°49'03"

Saturn

Excellent
視星等: 0.7
星座: Aquarius
Angular diameter: 15.4"
Status: near western quadrature

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

赤經: 20h08m05s
赤緯: -20°33'40"

Uranus

Fair
視星等: 5.7
星座: Taurus
Angular diameter: 3.7"
Status: near western quadrature

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

赤經: 02h19m40s
赤緯: +13°27'05"

Neptune

Fair
視星等: 7.8
星座: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

赤經: 23h18m26s
赤緯: -05°39'12"

Moon

Excellent
視星等: -12.7
星座: Sagittarius
Angular diameter: 12731.9"
Status: Moon illumination 0.1%

Observation tip: Moon illumination 0.1%; good for observing lunar surface detail

赤經: 17h50m30s
赤緯: -24°08'50"