March 1939 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

20 sky events total, including 4 moon phases and 3 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

March 1939 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.4
กลุ่มดาว: Aries
Angular diameter: 7.0"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 00h40m03s
เดคลิเนชัน: +06°12'52"

Venus

Excellent
Apparent magnitude: -4.1
กลุ่มดาว: Aquarius
Angular diameter: 16.7"
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: 20h52m37s
เดคลิเนชัน: -16°57'15"

Mars

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Sagittarius
Angular diameter: 7.5"
Status: near eastern quadrature

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

Right ascension: 17h44m28s
เดคลิเนชัน: -23°18'13"

Jupiter

Excellent
Apparent magnitude: -2.0
กลุ่มดาว: Pisces
Angular diameter: 33.1"
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: 23h14m02s
เดคลิเนชัน: -06°01'11"

Saturn

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Aries
Angular diameter: 16.2"
Status: near western quadrature

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

Right ascension: 01h08m14s
เดคลิเนชัน: +04°48'00"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Taurus
Angular diameter: 3.5"
Status: near western quadrature

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

Right ascension: 02h50m19s
เดคลิเนชัน: +16°00'11"

Neptune

Fair
Apparent magnitude: 7.8
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: 11h32m13s
เดคลิเนชัน: +04°18'30"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Capricornus
Angular diameter: 11510.7"
Status: Moon illumination 30.5%

Observation tip: Moon illumination 30.5%; good for observing lunar surface detail

Right ascension: 19h09m47s
เดคลิเนชัน: -17°42'28"