April 1949 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

25 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

April 1949 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Aries
Angular diameter: 5.1"
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: 01h39m15s
เดคลิเนชัน: +09°49'50"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Aries
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: 01h31m16s
เดคลิเนชัน: +08°19'48"

Mars

Excellent
Apparent magnitude: 1.1
กลุ่มดาว: Aries
Angular diameter: 3.9"
Status: near eastern quadrature

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

Right ascension: 01h09m27s
เดคลิเนชัน: +06°42'14"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Aquarius
Angular diameter: 38.2"
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: 20h09m54s
เดคลิเนชัน: -20°18'37"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Virgo
Angular diameter: 19.2"
Status: near western quadrature

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

Right ascension: 10h09m10s
เดคลิเนชัน: +13°17'07"

Uranus

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

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

Right ascension: 05h47m54s
เดคลิเนชัน: +23°37'45"

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: 12h52m15s
เดคลิเนชัน: -03°49'54"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Scorpius
Angular diameter: 12767.7"
Status: Moon illumination 95.2%

Observation tip: Moon illumination 95.2%; good for observing lunar surface detail

Right ascension: 15h08m09s
เดคลิเนชัน: -19°53'39"