April 2040 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

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

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

April 2040 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.6
กลุ่มดาว: Aries
Angular diameter: 5.4"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 00h39m36s
เดคลิเนชัน: +01°51'27"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Aries
Angular diameter: 10.0"
Status: near inferior conjunction

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: 00h51m52s
เดคลิเนชัน: +03°58'51"

Mars

Excellent
Apparent magnitude: 0.9
กลุ่มดาว: Cancer
Angular diameter: 6.7"
Status: near western quadrature

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

Right ascension: 07h34m40s
เดคลิเนชัน: +23°51'11"

Jupiter

Excellent
Apparent magnitude: -2.4
กลุ่มดาว: Virgo
Angular diameter: 43.2"
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: 11h38m33s
เดคลิเนชัน: +03°58'29"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Libra
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: 12h31m15s
เดคลิเนชัน: -00°28'10"

Uranus

Fair
Apparent magnitude: 5.5
กลุ่มดาว: Leo
Angular diameter: 3.8"
Status: near western quadrature

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

Right ascension: 08h06m28s
เดคลิเนชัน: +20°51'10"

Neptune

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

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

Right ascension: 02h05m28s
เดคลิเนชัน: +10°55'13"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Gemini
Angular diameter: 11681.5"
Status: Moon illumination 11.7%

Observation tip: Moon illumination 11.7%; good for observing lunar surface detail

Right ascension: 04h14m44s
เดคลิเนชัน: +21°21'45"