April 1901 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

19 sky events total, including 4 moon phases and 1 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

April 1901 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.0
กลุ่มดาว: Aries
Angular diameter: 6.5"
Status: near inferior conjunction

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

Right ascension: 00h00m27s
เดคลิเนชัน: -02°46'59"

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: 01h16m15s
เดคลิเนชัน: +06°42'31"

Mars

Excellent
Apparent magnitude: -0.1
กลุ่มดาว: Leo
Angular diameter: 10.3"
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: 09h47m54s
เดคลิเนชัน: +16°09'04"

Jupiter

Excellent
Apparent magnitude: -2.3
กลุ่มดาว: Capricornus
Angular diameter: 39.9"
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: 18h54m58s
เดคลิเนชัน: -22°39'52"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Capricornus
Angular diameter: 16.8"
Status: near eastern quadrature

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

Right ascension: 19h10m23s
เดคลิเนชัน: -21°55'25"

Uranus

Fair
Apparent magnitude: 5.6
กลุ่มดาว: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 17h02m03s
เดคลิเนชัน: -22°47'31"

Neptune

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

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

Right ascension: 05h46m20s
เดคลิเนชัน: +22°14'11"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 12576.4"
Status: Moon illumination 21.0%

Observation tip: Moon illumination 21.0%; good for observing lunar surface detail

Right ascension: 22h01m11s
เดคลิเนชัน: -06°36'00"