April 1989 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

23 天象事件總數,包括 4 月相與 2 行星事件。

每日天象事件

所有時間均為當地時間 (Asia/Shanghai)

Group 日期 日出/日落 月出/月落 月相 天象

Planetary outlook

April 1989 mid-month observing conditions

Mercury

Excellent
視星等: -1.4
星座: Taurus
Angular diameter: 5.5"
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

赤經: 02h14m51s
赤緯: +14°24'53"

Venus

Excellent
視星等: -3.9
星座: Aries
Angular diameter: 9.7"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

赤經: 01h43m54s
赤緯: +09°40'01"

Mars

Excellent
視星等: 1.5
星座: Gemini
Angular diameter: 4.8"
Status: near western quadrature

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

赤經: 05h21m27s
赤緯: +24°31'09"

Jupiter

Excellent
視星等: -2.0
星座: Gemini
Angular diameter: 34.1"
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

赤經: 04h17m34s
赤緯: +20°50'08"

Saturn

Excellent
視星等: 0.4
星座: Capricornus
Angular diameter: 17.0"
Status: near eastern quadrature

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

赤經: 18h59m58s
赤緯: -22°03'00"

Uranus

Fair
視星等: 5.7
星座: Capricornus
Angular diameter: 3.7"
Status: near eastern quadrature

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

赤經: 18h23m13s
赤緯: -23°35'09"

Neptune

Fair
視星等: 7.8
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

赤經: 18h53m28s
赤緯: -21°56'48"

Moon

Excellent
視星等: -12.7
星座: Leo
Angular diameter: 11647.5"
Status: Moon illumination 69.8%

Observation tip: Moon illumination 69.8%; good for observing lunar surface detail

赤經: 09h24m11s
赤緯: +16°42'12"