May 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

May 1939 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.1
กลุ่มดาว: Aries
Angular diameter: 6.4"
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: 01h57m59s
เดคลิเนชัน: +09°09'29"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Aries
Angular diameter: 11.9"
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: 01h28m43s
เดคลิเนชัน: +07°24'47"

Mars

Excellent
Apparent magnitude: -0.8
กลุ่มดาว: Capricornus
Angular diameter: 13.1"
Status: near eastern quadrature

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

Right ascension: 19h56m06s
เดคลิเนชัน: -22°42'13"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Aries
Angular diameter: 35.7"
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: 00h04m11s
เดคลิเนชัน: -00°45'46"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Aries
Angular diameter: 16.3"
Status: near eastern quadrature

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

Right ascension: 01h36m23s
เดคลิเนชัน: +07°36'03"

Uranus

Fair
Apparent magnitude: 5.9
กลุ่มดาว: Taurus
Angular diameter: 3.4"
Status: near eastern quadrature

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

Right ascension: 03h03m08s
เดคลิเนชัน: +16°55'59"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Virgo
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 11h27m26s
เดคลิเนชัน: +04°48'24"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aries
Angular diameter: 11762.7"
Status: Moon illumination 18.3%

Observation tip: Moon illumination 18.3%; good for observing lunar surface detail

Right ascension: 00h05m10s
เดคลิเนชัน: +03°54'51"