July 2021 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

22 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 2021 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.7
星座: Cancer
Angular diameter: 6.3"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤経: 06h20m45s
赤緯: +22°25'50"

Venus

Excellent
見かけの等級: -3.9
星座: Leo
Angular diameter: 11.8"
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: 09h37m53s
赤緯: +15°52'34"

Mars

Excellent
見かけの等級: 1.8
星座: Leo
Angular diameter: 3.8"
Status: near western quadrature

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

赤経: 09h33m58s
赤緯: +15°42'15"

Jupiter

Excellent
見かけの等級: -2.7
星座: Pisces
Angular diameter: 46.9"
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: 22h14m40s
赤緯: -12°01'53"

Saturn

Excellent
見かけの等級: 0.3
星座: Aquarius
Angular diameter: 18.5"
Status: near eastern quadrature

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

赤経: 20h56m43s
赤緯: -18°02'59"

Uranus

Fair
見かけの等級: 5.8
星座: Taurus
Angular diameter: 3.5"
Status: near eastern quadrature

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

赤経: 02h47m43s
赤緯: +15°43'39"

Neptune

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

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

赤経: 23h36m28s
赤緯: -03°47'14"

Moon

Excellent
見かけの等級: -12.7
星座: Virgo
Angular diameter: 12218.3"
Status: Moon illumination 24.5%

Observation tip: Moon illumination 24.5%; good for observing lunar surface detail

赤経: 11h37m58s
赤緯: +07°52'38"