December 1938 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

17 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 1938 mid-month observing conditions

Mercury

Fair
視星等: 5.5
星座: Sagittarius
Angular diameter: 9.9"
Status: near greatest eastern elongation

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

赤經: 17h21m03s
赤緯: -21°10'43"

Venus

Excellent
視星等: -4.9
星座: Scorpius
Angular diameter: 48.7"
Status: near greatest eastern 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: 15h12m43s
赤緯: -15°15'29"

Mars

Excellent
視星等: 1.6
星座: Scorpius
Angular diameter: 4.5"
Status: near eastern quadrature

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

赤經: 14h00m19s
赤緯: -11°10'16"

Jupiter

Excellent
視星等: -2.2
星座: Aquarius
Angular diameter: 37.0"
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: 21h59m47s
赤緯: -13°21'30"

Saturn

Excellent
視星等: 0.6
星座: Aries
Angular diameter: 18.4"
Status: near western quadrature

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

赤經: 00h45m19s
赤緯: +02°04'30"

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: 02h48m23s
赤緯: +15°49'16"

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: 11h37m13s
赤緯: +03°42'55"

Moon

Excellent
視星等: -12.7
星座: Libra
Angular diameter: 12241.6"
Status: Moon illumination 39.9%

Observation tip: Moon illumination 39.9%; good for observing lunar surface detail

赤經: 12h09m52s
赤緯: -04°57'08"