April 1978 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

18 sky events total, including 4 moon phases and 1 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

April 1978 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 5.0
กลุ่มดาว: Aries
Angular diameter: 11.7"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 01h07m48s
เดคลิเนชัน: +08°45'52"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Taurus
Angular diameter: 10.6"
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: 02h49m53s
เดคลิเนชัน: +16°14'20"

Mars

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Leo
Angular diameter: 7.7"
Status: near western quadrature

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

Right ascension: 08h17m16s
เดคลิเนชัน: +22°09'44"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Cancer
Angular diameter: 35.8"
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: 06h01m54s
เดคลิเนชัน: +23°26'50"

Saturn

Excellent
Apparent magnitude: 0.4
กลุ่มดาว: Leo
Angular diameter: 19.1"
Status: near western quadrature

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

Right ascension: 09h46m23s
เดคลิเนชัน: +15°03'26"

Uranus

Fair
Apparent magnitude: 5.4
กลุ่มดาว: Scorpius
Angular diameter: 4.0"
Status: near eastern quadrature

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

Right ascension: 14h51m30s
เดคลิเนชัน: -16°00'49"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Sagittarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 17h09m02s
เดคลิเนชัน: -21°26'13"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Cancer
Angular diameter: 11508.3"
Status: Moon illumination 44.6%

Observation tip: Moon illumination 44.6%; good for observing lunar surface detail

Right ascension: 07h16m33s
เดคลิเนชัน: +17°05'56"