April 1951 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

25 sky events total, including 4 moon phases and 3 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

April 1951 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.9
กลุ่มดาว: Taurus
Angular diameter: 9.9"
Status: near superior conjunction

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

Right ascension: 02h20m36s
เดคลิเนชัน: +17°13'35"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Taurus
Angular diameter: 13.4"
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: 03h48m24s
เดคลิเนชัน: +21°13'48"

Mars

Excellent
Apparent magnitude: 1.3
กลุ่มดาว: Taurus
Angular diameter: 3.8"
Status: near western quadrature

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

Right ascension: 02h05m00s
เดคลิเนชัน: +12°29'20"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Pisces
Angular diameter: 33.7"
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

Right ascension: 23h56m10s
เดคลิเนชัน: -01°34'28"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Virgo
Angular diameter: 19.3"
Status: near western quadrature

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

Right ascension: 11h53m21s
เดคลิเนชัน: +03°28'20"

Uranus

Fair
Apparent magnitude: 5.6
กลุ่มดาว: Cancer
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 06h25m30s
เดคลิเนชัน: +23°38'23"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Libra
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 13h08m59s
เดคลิเนชัน: -05°30'07"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 11641.7"
Status: Moon illumination 54.6%

Observation tip: Moon illumination 54.6%; good for observing lunar surface detail

Right ascension: 08h09m35s
เดคลิเนชัน: +24°08'09"