July 1920 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

17 sky events total, including 5 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

July 1920 mid-month observing conditions

Mercury

Good
Apparent magnitude: 2.0
กลุ่มดาว: Leo
Angular diameter: 10.7"
Status: near superior conjunction

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

Right ascension: 08h46m58s
เดคลิเนชัน: +14°28'25"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Cancer
Angular diameter: 9.6"
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: 07h49m37s
เดคลิเนชัน: +22°02'54"

Mars

Excellent
Apparent magnitude: -0.2
กลุ่มดาว: Libra
Angular diameter: 10.1"
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: 13h56m29s
เดคลิเนชัน: -13°15'41"

Jupiter

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Leo
Angular diameter: 31.6"
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: 09h33m40s
เดคลิเนชัน: +15°21'10"

Saturn

Excellent
Apparent magnitude: 0.9
กลุ่มดาว: Virgo
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: 10h43m33s
เดคลิเนชัน: +10°00'20"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Pisces
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 22h29m19s
เดคลิเนชัน: -10°20'19"

Neptune

Fair
Apparent magnitude: 8.0
กลุ่มดาว: Leo
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 08h51m58s
เดคลิเนชัน: +17°36'31"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Cancer
Angular diameter: 12980.8"
Status: Moon illumination 1.3%

Observation tip: Moon illumination 1.3%; good for observing lunar surface detail

Right ascension: 06h42m30s
เดคลิเนชัน: +18°50'37"