July 2017 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 5 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

July 2017 mid-month observing conditions

Mercury

Excellent
見かけの等級: -0.2
星座: Leo
Angular diameter: 6.1"
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: 09h12m06s
赤緯: +17°22'47"

Venus

Excellent
見かけの等級: -4.1
星座: Gemini
Angular diameter: 16.3"
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: 04h39m26s
赤緯: +19°48'21"

Mars

Excellent
見かけの等級: 1.6
星座: Cancer
Angular diameter: 3.5"
Status: near western quadrature

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

赤経: 07h54m40s
赤緯: +21°54'30"

Jupiter

Excellent
見かけの等級: -1.9
星座: Libra
Angular diameter: 35.9"
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: 12h57m13s
赤緯: -04°45'36"

Saturn

Excellent
見かけの等級: 0.2
星座: Sagittarius
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: 17h27m33s
赤緯: -21°55'32"

Uranus

Fair
見かけの等級: 5.9
星座: Aries
Angular diameter: 3.5"
Status: near eastern quadrature

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

赤経: 01h46m17s
赤緯: +10°21'19"

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: 23h02m39s
赤緯: -07°07'18"

Moon

Excellent
見かけの等級: -12.7
星座: Aries
Angular diameter: 12135.7"
Status: Moon illumination 69.3%

Observation tip: Moon illumination 69.3%; good for observing lunar surface detail

赤経: 00h05m06s
赤緯: -02°45'37"