April 1989 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

23 sky events total, including 4 moon phases and 2 planetary events.

Daily Sky Events

All times are in local time (Asia/Shanghai)

Group Date Sunrise/Sunset Moonrise/Moonset Moon Phase Sky Events

Planetary outlook

April 1989 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.4
Constellation: 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

Right ascension: 02h14m51s
Declination: +14°24'53"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: 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

Right ascension: 01h43m54s
Declination: +09°40'01"

Mars

Excellent
Apparent magnitude: 1.5
Constellation: 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

Right ascension: 05h21m27s
Declination: +24°31'09"

Jupiter

Excellent
Apparent magnitude: -2.0
Constellation: 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

Right ascension: 04h17m34s
Declination: +20°50'08"

Saturn

Excellent
Apparent magnitude: 0.4
Constellation: 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

Right ascension: 18h59m58s
Declination: -22°03'00"

Uranus

Fair
Apparent magnitude: 5.7
Constellation: Capricornus
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 18h23m13s
Declination: -23°35'09"

Neptune

Fair
Apparent magnitude: 7.8
Constellation: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 18h53m28s
Declination: -21°56'48"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Leo
Angular diameter: 11647.5"
Status: Moon illumination 69.8%

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

Right ascension: 09h24m11s
Declination: +16°42'12"