October 2021 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 4 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

October 2021 mid-month observing conditions

Mercury

Good
見かけの等級: 2.0
星座: Libra
Angular diameter: 9.3"
Status: near greatest eastern elongation

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

赤経: 12h41m32s
赤緯: -04°35'07"

Venus

Excellent
見かけの等級: -4.4
星座: Sagittarius
Angular diameter: 21.4"
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: 16h23m29s
赤緯: -24°40'10"

Mars

Excellent
見かけの等級: 1.6
星座: Libra
Angular diameter: 3.6"
Status: near eastern quadrature

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

赤経: 13h13m18s
赤緯: -07°06'57"

Jupiter

Excellent
見かけの等級: -2.6
星座: Aquarius
Angular diameter: 44.5"
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: 21h40m22s
赤緯: -15°09'12"

Saturn

Excellent
見かけの等級: 0.6
星座: Aquarius
Angular diameter: 17.3"
Status: near western quadrature

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

赤経: 20h38m01s
赤緯: -19°20'28"

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: 02h45m11s
赤緯: +15°31'20"

Neptune

Fair
見かけの等級: 7.7
星座: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

赤経: 23h28m44s
赤緯: -04°38'43"

Moon

Excellent
見かけの等級: -12.7
星座: Aquarius
Angular diameter: 12222.3"
Status: Moon illumination 70.0%

Observation tip: Moon illumination 70.0%; good for observing lunar surface detail

赤経: 21h17m37s
赤緯: -20°56'23"