July 1981 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

23 合計天文イベント、含む 5 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

July 1981 mid-month observing conditions

Mercury

Excellent
見かけの等級: 0.3
星座: Cancer
Angular diameter: 7.8"
Status: near inferior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 06h07m55s
赤緯: +20°49'54"

Venus

Excellent
見かけの等級: -3.9
星座: Leo
Angular diameter: 11.3"
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: 09h25m27s
赤緯: +16°51'29"

Mars

Excellent
見かけの等級: 1.6
星座: Gemini
Angular diameter: 3.9"
Status: near eastern quadrature

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

赤経: 05h50m00s
赤緯: +23°51'56"

Jupiter

Excellent
見かけの等級: -1.9
星座: Libra
Angular diameter: 34.6"
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

赤経: 12h15m31s
赤緯: -00°19'18"

Saturn

Excellent
見かけの等級: 0.9
星座: Libra
Angular diameter: 16.9"
Status: near western quadrature

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

赤経: 12h19m30s
赤緯: +00°27'04"

Uranus

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

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

赤経: 15h35m51s
赤緯: -19°06'21"

Neptune

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

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

赤経: 17h28m34s
赤緯: -21°53'12"

Moon

Excellent
見かけの等級: -12.7
星座: Sagittarius
Angular diameter: 11642.3"
Status: Moon illumination 95.2%

Observation tip: Moon illumination 95.2%; good for observing lunar surface detail

赤経: 17h48m27s
赤緯: -20°25'44"