July 1987 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

July 1987 mid-month observing conditions

Mercury

Good
見かけの等級: 2.1
星座: Cancer
Angular diameter: 10.1"
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: 06h31m13s
赤緯: +18°51'53"

Venus

Excellent
見かけの等級: -3.9
星座: Cancer
Angular diameter: 9.9"
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: 06h48m55s
赤緯: +23°12'09"

Mars

Excellent
見かけの等級: 1.8
星座: Leo
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: 08h31m49s
赤緯: +20°04'16"

Jupiter

Excellent
見かけの等級: -2.4
星座: Aries
Angular diameter: 39.8"
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: 01h44m45s
赤緯: +09°26'35"

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: 16h57m43s
赤緯: -21°07'18"

Uranus

Fair
見かけの等級: 5.6
星座: Sagittarius
Angular diameter: 3.8"
Status: near western quadrature

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

赤経: 17h32m12s
赤緯: -23°26'44"

Neptune

Fair
見かけの等級: 7.8
星座: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

赤経: 18h26m46s
赤緯: -22°15'03"

Moon

Excellent
見かけの等級: -12.7
星座: Pisces
Angular diameter: 12637.2"
Status: Moon illumination 79.5%

Observation tip: Moon illumination 79.5%; good for observing lunar surface detail

赤経: 23h10m56s
赤緯: -07°04'39"