August 1939 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

21 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

August 1939 mid-month observing conditions

Mercury

Good
Apparent magnitude: 3.9
กลุ่มดาว: Leo
Angular diameter: 10.5"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 09h01m01s
เดคลิเนชัน: +12°43'22"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Leo
Angular diameter: 9.7"
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: 09h12m22s
เดคลิเนชัน: +17°18'13"

Mars

Excellent
Apparent magnitude: -2.4
กลุ่มดาว: Capricornus
Angular diameter: 22.8"
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: 19h50m32s
เดคลิเนชัน: -27°22'53"

Jupiter

Excellent
Apparent magnitude: -2.8
กลุ่มดาว: Aries
Angular diameter: 46.8"
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: 00h33m07s
เดคลิเนชัน: +01°55'32"

Saturn

Excellent
Apparent magnitude: 0.4
กลุ่มดาว: Taurus
Angular diameter: 18.6"
Status: near eastern quadrature

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

Right ascension: 02h00m09s
เดคลิเนชัน: +09°29'01"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Taurus
Angular diameter: 3.6"
Status: near eastern quadrature

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

Right ascension: 03h18m14s
เดคลิเนชัน: +17°55'46"

Neptune

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

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

Right ascension: 11h32m02s
เดคลิเนชัน: +04°16'19"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 13022.5"
Status: Moon illumination 0.2%

Observation tip: Moon illumination 0.2%; good for observing lunar surface detail

Right ascension: 09h19m26s
เดคลิเนชัน: +10°33'39"