April 1977 天文現象

観測地点:Beijing (39.904°, 116.407°)

月間天文現象概要

21 合計天文イベント、含む 4 月相と 3 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 1977 mid-month observing conditions

Mercury

Excellent
見かけの等級: 0.7
星座: Taurus
Angular diameter: 8.7"
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: 02h39m08s
赤緯: +18°39'18"

Venus

Excellent
見かけの等級: -4.2
星座: Aries
Angular diameter: 56.6"
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: 00h32m01s
赤緯: +09°59'21"

Mars

Excellent
見かけの等級: 1.2
星座: Pisces
Angular diameter: 4.5"
Status: near eastern quadrature

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

赤経: 23h25m52s
赤緯: -05°00'25"

Jupiter

Excellent
見かけの等級: -2.0
星座: Gemini
Angular diameter: 33.9"
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: 04h01m21s
赤緯: +20°02'54"

Saturn

Excellent
見かけの等級: 0.3
星座: Leo
Angular diameter: 18.8"
Status: near western quadrature

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

赤経: 08h50m45s
赤緯: +18°42'10"

Uranus

Fair
見かけの等級: 5.4
星座: Scorpius
Angular diameter: 4.0"
Status: near eastern quadrature

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

赤経: 14h32m32s
赤緯: -14°30'15"

Neptune

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

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

赤経: 16h59m37s
赤緯: -21°11'11"

Moon

Excellent
見かけの等級: -12.7
星座: Pisces
Angular diameter: 11841.7"
Status: Moon illumination 11.2%

Observation tip: Moon illumination 11.2%; good for observing lunar surface detail

赤経: 23h03m27s
赤緯: -02°28'40"