April 2057 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

21 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 2057 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 4.3
กลุ่มดาว: Aries
Angular diameter: 11.6"
Status: near greatest eastern elongation

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

Right ascension: 01h01m07s
เดคลิเนชัน: +07°44'02"

Venus

Excellent
Apparent magnitude: -4.8
กลุ่มดาว: Pisces
Angular diameter: 40.7"
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

Right ascension: 23h10m35s
เดคลิเนชัน: -01°54'20"

Mars

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Leo
Angular diameter: 7.8"
Status: near western quadrature

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

Right ascension: 08h26m06s
เดคลิเนชัน: +21°41'18"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Pisces
Angular diameter: 34.9"
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: 22h40m22s
เดคลิเนชัน: -09°19'45"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Aries
Angular diameter: 16.1"
Status: near western quadrature

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

Right ascension: 01h38m25s
เดคลิเนชัน: +07°49'27"

Uranus

Fair
Apparent magnitude: 5.4
กลุ่มดาว: Libra
Angular diameter: 4.1"
Status: near western quadrature

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

Right ascension: 13h22m18s
เดคลิเนชัน: -07°57'59"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Gemini
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 04h33m57s
เดคลิเนชัน: +20°25'57"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Virgo
Angular diameter: 12047.2"
Status: Moon illumination 76.6%

Observation tip: Moon illumination 76.6%; good for observing lunar surface detail

Right ascension: 10h05m02s
เดคลิเนชัน: +16°00'01"