April 2081 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

22 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 2081 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.5
กลุ่มดาว: Taurus
Angular diameter: 5.4"
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: 02h12m17s
เดคลิเนชัน: +13°56'40"

Venus

Excellent
Apparent magnitude: -4.7
กลุ่มดาว: Pisces
Angular diameter: 36.4"
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: 22h59m20s
เดคลิเนชัน: -03°49'42"

Mars

Excellent
Apparent magnitude: 1.6
กลุ่มดาว: Gemini
Angular diameter: 4.2"
Status: near western quadrature

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

Right ascension: 04h01m08s
เดคลิเนชัน: +21°22'47"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Pisces
Angular diameter: 34.4"
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: 23h11m28s
เดคลิเนชัน: -06°14'37"

Saturn

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Aquarius
Angular diameter: 16.1"
Status: near eastern quadrature

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

Right ascension: 21h51m28s
เดคลิเนชัน: -14°04'43"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aquarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 20h48m24s
เดคลิเนชัน: -18°27'10"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Leo
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 08h19m28s
เดคลิเนชัน: +19°19'01"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Cancer
Angular diameter: 12297.8"
Status: Moon illumination 31.3%

Observation tip: Moon illumination 31.3%; good for observing lunar surface detail

Right ascension: 06h15m58s
เดคลิเนชัน: +28°31'09"