April 1984 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 1984 mid-month observing conditions

Mercury

Good
見かけの等級: 2.8
星座: Taurus
Angular diameter: 10.6"
Status: near superior conjunction

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

赤経: 02h11m33s
赤緯: +16°17'18"

Venus

Excellent
見かけの等級: -3.9
星座: Aries
Angular diameter: 10.2"
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: 00h34m47s
赤緯: +02°06'25"

Mars

Excellent
見かけの等級: -1.2
星座: Scorpius
Angular diameter: 14.7"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

赤経: 15h42m57s
赤緯: -18°46'08"

Jupiter

Excellent
見かけの等級: -2.3
星座: Capricornus
Angular diameter: 39.9"
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: 18h54m46s
赤緯: -22°38'24"

Saturn

Excellent
見かけの等級: 0.2
星座: Scorpius
Angular diameter: 18.7"
Status: near eastern quadrature

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

赤経: 14h51m01s
赤緯: -13°40'56"

Uranus

Fair
見かけの等級: 5.5
星座: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

赤経: 16h47m19s
赤緯: -22°20'57"

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: 18h05m58s
赤緯: -22°14'02"

Moon

Excellent
見かけの等級: -12.7
星座: Libra
Angular diameter: 12886.4"
Status: Moon illumination 98.9%

Observation tip: Moon illumination 98.9%; good for observing lunar surface detail

赤経: 12h58m13s
赤緯: -01°45'06"