September 2025 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 3 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 2025 mid-month observing conditions

Mercury

Excellent
見かけの等級: -1.6
星座: Virgo
Angular diameter: 4.9"
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: 11h39m34s
赤緯: +03°51'20"

Venus

Excellent
見かけの等級: -3.9
星座: Leo
Angular diameter: 11.7"
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: 09h48m10s
赤緯: +14°04'55"

Mars

Excellent
見かけの等級: 1.6
星座: Libra
Angular diameter: 4.1"
Status: near western quadrature

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

赤経: 13h33m11s
赤緯: -09°37'41"

Jupiter

Excellent
見かけの等級: -2.0
星座: Cancer
Angular diameter: 35.4"
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: 07h27m31s
赤緯: +21°54'23"

Saturn

Excellent
見かけの等級: 0.6
星座: Aries
Angular diameter: 19.4"
Status: near eastern quadrature

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

赤経: 00h00m17s
赤緯: -02°41'52"

Uranus

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

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

赤経: 03h57m25s
赤緯: +20°14'26"

Neptune

Fair
見かけの等級: 7.7
星座: Aries
Angular diameter: 2.4"
Status: near eastern quadrature

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

赤経: 00h05m49s
赤緯: -00°51'51"

Moon

Excellent
見かけの等級: -12.7
星座: Gemini
Angular diameter: 12443.0"
Status: Moon illumination 43.8%

Observation tip: Moon illumination 43.8%; good for observing lunar surface detail

赤経: 05h58m40s
赤緯: +28°37'06"