May 1981 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

21 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

May 1981 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.7
星座: Gemini
Angular diameter: 6.2"
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: 04h41m49s
赤緯: +24°26'20"

Venus

Excellent
見かけの等級: -3.9
星座: Gemini
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

赤経: 04h07m36s
赤緯: +20°57'46"

Mars

Excellent
見かけの等級: 1.3
星座: Taurus
Angular diameter: 3.8"
Status: near eastern quadrature

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

赤経: 02h48m54s
赤緯: +16°01'09"

Jupiter

Excellent
見かけの等級: -2.3
星座: Libra
Angular diameter: 41.2"
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: 12h04m53s
赤緯: +01°05'22"

Saturn

Excellent
見かけの等級: 0.7
星座: Libra
Angular diameter: 18.7"
Status: near western quadrature

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

赤経: 12h16m27s
赤緯: +01°01'34"

Uranus

Fair
見かけの等級: 5.5
星座: Scorpius
Angular diameter: 4.0"
Status: near eastern quadrature

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

赤経: 15h44m20s
赤緯: -19°33'32"

Neptune

Fair
見かけの等級: 7.8
星座: Sagittarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤経: 17h35m15s
赤緯: -21°57'18"

Moon

Excellent
見かけの等級: -12.7
星座: Libra
Angular diameter: 11531.3"
Status: Moon illumination 86.1%

Observation tip: Moon illumination 86.1%; good for observing lunar surface detail

赤経: 12h45m07s
赤緯: +00°08'04"