September 2021 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 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

September 2021 mid-month observing conditions

Mercury

Excellent
見かけの等級: 0.2
星座: Libra
Angular diameter: 7.1"
Status: near superior conjunction

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

赤経: 13h05m55s
赤緯: -09°57'34"

Venus

Excellent
見かけの等級: -4.1
星座: Scorpius
Angular diameter: 16.6"
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: 14h08m24s
赤緯: -14°08'34"

Mars

Excellent
見かけの等級: 1.7
星座: Libra
Angular diameter: 3.6"
Status: near western quadrature

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

赤経: 12h01m16s
赤緯: +00°45'08"

Jupiter

Excellent
見かけの等級: -2.8
星座: Aquarius
Angular diameter: 48.0"
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: 21h47m14s
赤緯: -14°37'10"

Saturn

Excellent
見かけの等級: 0.4
星座: Aquarius
Angular diameter: 18.1"
Status: near western quadrature

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

赤経: 20h40m13s
赤緯: -19°12'02"

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: 02h48m45s
赤緯: +15°47'27"

Neptune

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

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

赤経: 23h31m36s
赤緯: -04°20'24"

Moon

Excellent
見かけの等級: -12.7
星座: Capricornus
Angular diameter: 12492.4"
Status: Moon illumination 62.9%

Observation tip: Moon illumination 62.9%; good for observing lunar surface detail

赤経: 18h32m13s
赤緯: -25°57'35"