September 1987 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 5 月相と 0 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

September 1987 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.3
星座: Libra
Angular diameter: 5.4"
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: 12h41m39s
赤緯: -05°02'12"

Venus

Excellent
見かけの等級: -3.9
星座: Virgo
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: 11h54m06s
赤緯: +02°06'06"

Mars

Excellent
見かけの等級: 1.7
星座: Virgo
Angular diameter: 3.5"
Status: near eastern quadrature

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

赤経: 11h05m32s
赤緯: +06°59'58"

Jupiter

Excellent
見かけの等級: -2.8
星座: Aries
Angular diameter: 47.9"
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: 01h48m34s
赤緯: +09°32'34"

Saturn

Excellent
見かけの等級: 0.4
星座: Sagittarius
Angular diameter: 16.5"
Status: near western quadrature

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

赤経: 16h55m57s
赤緯: -21°16'58"

Uranus

Fair
見かけの等級: 5.7
星座: Sagittarius
Angular diameter: 3.7"
Status: near western quadrature

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

赤経: 17h28m34s
赤緯: -23°24'20"

Neptune

Fair
見かけの等級: 7.9
星座: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

赤経: 18h22m37s
赤緯: -22°19'37"

Moon

Excellent
見かけの等級: -12.7
星座: Gemini
Angular diameter: 11650.4"
Status: Moon illumination 50.0%

Observation tip: Moon illumination 50.0%; good for observing lunar surface detail

赤経: 05h22m36s
赤緯: +28°21'35"