May 1951 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

May 1951 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.0
กลุ่มดาว: Aries
Angular diameter: 9.6"
Status: near greatest eastern elongation

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

Right ascension: 01h55m58s
เดคลิเนชัน: +08°31'14"

Venus

Excellent
Apparent magnitude: -4.1
กลุ่มดาว: Cancer
Angular diameter: 16.1"
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: 06h19m50s
เดคลิเนชัน: +25°43'29"

Mars

Excellent
Apparent magnitude: 1.3
กลุ่มดาว: Taurus
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 03h31m31s
เดคลิเนชัน: +19°13'27"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Aries
Angular diameter: 35.4"
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: 00h20m02s
เดคลิเนชัน: +00°56'20"

Saturn

Excellent
Apparent magnitude: 0.8
กลุ่มดาว: Virgo
Angular diameter: 18.6"
Status: near western quadrature

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

Right ascension: 11h48m08s
เดคลิเนชัน: +03°57'20"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Cancer
Angular diameter: 3.6"
Status: near western quadrature

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

Right ascension: 06h30m27s
เดคลิเนชัน: +23°34'54"

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: 13h06m12s
เดคลิเนชัน: -05°13'32"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Virgo
Angular diameter: 11900.6"
Status: Moon illumination 57.8%

Observation tip: Moon illumination 57.8%; good for observing lunar surface detail

Right ascension: 10h18m44s
เดคลิเนชัน: +11°51'05"