December 1949 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

24 合計天文イベント、含む 4 月相と 1 惑星イベント。

毎日の天文現象

すべての時刻は現地時間 (Asia/Shanghai)

Group 日付 日の出/日の入り 月の出/月の入り 月相 天文現象

Planetary outlook

December 1949 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.7
星座: Capricornus
Angular diameter: 5.1"
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

赤経: 18h23m38s
赤緯: -25°32'41"

Venus

Excellent
見かけの等級: -4.8
星座: Aquarius
Angular diameter: 34.2"
Status: near superior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

赤経: 20h40m16s
赤緯: -20°17'39"

Mars

Excellent
見かけの等級: 0.9
星座: Virgo
Angular diameter: 6.8"
Status: near eastern quadrature

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

赤経: 11h46m07s
赤緯: +03°55'35"

Jupiter

Excellent
見かけの等級: -2.0
星座: Aquarius
Angular diameter: 34.0"
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

赤経: 20h20m57s
赤緯: -20°05'47"

Saturn

Excellent
見かけの等級: 0.8
星座: Virgo
Angular diameter: 18.0"
Status: near eastern quadrature

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

赤経: 11h23m26s
赤緯: +06°02'20"

Uranus

Fair
見かけの等級: 5.5
星座: Cancer
Angular diameter: 3.9"
Status: near eastern quadrature

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

赤経: 06h14m53s
赤緯: +23°40'12"

Neptune

Fair
見かけの等級: 8.0
星座: Libra
Angular diameter: 2.2"
Status: near eastern quadrature

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

赤経: 13h05m09s
赤緯: -05°13'50"

Moon

Excellent
見かけの等級: -12.7
星座: Libra
Angular diameter: 12664.4"
Status: Moon illumination 28.8%

Observation tip: Moon illumination 28.8%; good for observing lunar surface detail

赤経: 13h05m24s
赤緯: -07°19'00"