April 1985 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

April 1985 mid-month observing conditions

Mercury

Excellent
見かけの等級: 1.9
星座: Aries
Angular diameter: 10.8"
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: 00h25m45s
赤緯: +02°35'31"

Venus

Excellent
見かけの等級: -4.3
星座: Aries
Angular diameter: 55.4"
Status: near greatest eastern 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: 00h20m17s
赤緯: +08°26'03"

Mars

Excellent
見かけの等級: 1.5
星座: Taurus
Angular diameter: 4.0"
Status: near western quadrature

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

赤経: 03h18m00s
赤緯: +18°40'34"

Jupiter

Excellent
見かけの等級: -2.1
星座: Aquarius
Angular diameter: 36.9"
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: 21h02m55s
赤緯: -17°19'47"

Saturn

Excellent
見かけの等級: 0.2
星座: Scorpius
Angular diameter: 18.3"
Status: near eastern quadrature

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

赤経: 15h40m53s
赤緯: -17°11'28"

Uranus

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

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

赤経: 17h06m46s
赤緯: -22°53'54"

Neptune

Fair
見かけの等級: 7.9
星座: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤経: 18h15m30s
赤緯: -22°14'46"

Moon

Excellent
見かけの等級: -12.7
星座: Pisces
Angular diameter: 11682.9"
Status: Moon illumination 23.2%

Observation tip: Moon illumination 23.2%; good for observing lunar surface detail

赤経: 22h06m58s
赤緯: -17°07'23"