April 1918 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 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 1918 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.5
กลุ่มดาว: Taurus
Angular diameter: 9.5"
Status: near superior conjunction

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

Right ascension: 02h27m26s
เดคลิเนชัน: +17°48'11"

Venus

Excellent
Apparent magnitude: -4.5
กลุ่มดาว: Pisces
Angular diameter: 26.1"
Status: near greatest eastern elongation

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: 22h37m52s
เดคลิเนชัน: -07°45'38"

Mars

Excellent
Apparent magnitude: -0.7
กลุ่มดาว: Virgo
Angular diameter: 12.7"
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: 11h07m27s
เดคลิเนชัน: +08°34'58"

Jupiter

Excellent
Apparent magnitude: -2.0
กลุ่มดาว: Gemini
Angular diameter: 34.4"
Status: near western 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: 04h34m44s
เดคลิเนชัน: +21°34'44"

Saturn

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Leo
Angular diameter: 18.8"
Status: near western quadrature

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

Right ascension: 08h41m12s
เดคลิเนชัน: +19°14'57"

Uranus

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

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

Right ascension: 21h57m01s
เดคลิเนชัน: -13°15'31"

Neptune

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

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

Right ascension: 08h26m24s
เดคลิเนชัน: +19°02'54"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Gemini
Angular diameter: 12399.7"
Status: Moon illumination 19.1%

Observation tip: Moon illumination 19.1%; good for observing lunar surface detail

Right ascension: 04h58m47s
เดคลิเนชัน: +23°25'06"