December 2001 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

27 合計天文イベント、含む 4 月相と 2 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 2001 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.9
星座: Sagittarius
Angular diameter: 4.7"
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: 17h54m12s
赤緯: -25°13'01"

Venus

Excellent
見かけの等級: -3.9
星座: Sagittarius
Angular diameter: 9.9"
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

赤経: 16h58m18s
赤緯: -22°24'20"

Mars

Excellent
見かけの等級: 0.5
星座: Pisces
Angular diameter: 6.8"
Status: near western quadrature

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

赤経: 22h26m48s
赤緯: -10°51'50"

Jupiter

Excellent
見かけの等級: -2.7
星座: Cancer
Angular diameter: 46.6"
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

赤経: 06h55m59s
赤緯: +22°46'39"

Saturn

Excellent
見かけの等級: -0.4
星座: Gemini
Angular diameter: 20.5"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

赤経: 04h36m56s
赤緯: +20°11'44"

Uranus

Fair
見かけの等級: 5.9
星座: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

赤経: 21h37m26s
赤緯: -14°55'35"

Neptune

Fair
見かけの等級: 7.8
星座: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

赤経: 20h37m03s
赤緯: -18°26'34"

Moon

Excellent
見かけの等級: -12.7
星座: Sagittarius
Angular diameter: 12057.6"
Status: Moon illumination 0.0%

Observation tip: Moon illumination 0.0%; good for observing lunar surface detail

赤経: 17h36m52s
赤緯: -23°06'19"