May 2031 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

20 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

May 2031 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.1
กลุ่มดาว: Aries
Angular diameter: 6.5"
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: 01h57m59s
เดคลิเนชัน: +09°02'26"

Venus

Excellent
Apparent magnitude: -4.2
กลุ่มดาว: Cancer
Angular diameter: 19.5"
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: 06h37m08s
เดคลิเนชัน: +25°58'17"

Mars

Excellent
Apparent magnitude: -1.7
กลุ่มดาว: Scorpius
Angular diameter: 16.9"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 14h30m38s
เดคลิเนชัน: -14°45'40"

Jupiter

Excellent
Apparent magnitude: -2.5
กลุ่มดาว: Sagittarius
Angular diameter: 44.6"
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: 17h49m51s
เดคลิเนชัน: -22°54'00"

Saturn

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Gemini
Angular diameter: 16.6"
Status: near western quadrature

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

Right ascension: 04h34m02s
เดคลิเนชัน: +20°26'12"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Gemini
Angular diameter: 3.5"
Status: near western quadrature

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

Right ascension: 05h21m57s
เดคลิเนชัน: +23°15'19"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Aries
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 00h55m52s
เดคลิเนชัน: +04°20'14"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 12294.6"
Status: Moon illumination 36.9%

Observation tip: Moon illumination 36.9%; good for observing lunar surface detail

Right ascension: 22h36m03s
เดคลิเนชัน: -03°14'03"