April 1913 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 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

April 1913 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.0
กลุ่มดาว: Aries
Angular diameter: 9.6"
Status: near greatest eastern elongation

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

Right ascension: 00h02m58s
เดคลิเนชัน: -01°01'16"

Venus

Excellent
Apparent magnitude: -4.3
กลุ่มดาว: Taurus
Angular diameter: 55.5"
Status: near superior 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: 02h20m53s
เดคลิเนชัน: +21°21'38"

Mars

Excellent
Apparent magnitude: 1.1
กลุ่มดาว: Pisces
Angular diameter: 4.8"
Status: near eastern quadrature

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

Right ascension: 22h56m21s
เดคลิเนชัน: -08°11'49"

Jupiter

Excellent
Apparent magnitude: -2.2
กลุ่มดาว: Capricornus
Angular diameter: 39.4"
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: 19h14m23s
เดคลิเนชัน: -22°16'13"

Saturn

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Gemini
Angular diameter: 16.9"
Status: near western quadrature

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

Right ascension: 04h01m03s
เดคลิเนชัน: +18°55'38"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aquarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 20h39m10s
เดคลิเนชัน: -19°02'52"

Neptune

Fair
Apparent magnitude: nan
กลุ่มดาว: Cancer
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 07h40m00s
เดคลิเนชัน: +20°58'36"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 12547.1"
Status: Moon illumination 58.8%

Observation tip: Moon illumination 58.8%; good for observing lunar surface detail

Right ascension: 08h31m36s
เดคลิเนชัน: +23°31'37"