April 1971 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

April 1971 mid-month observing conditions

Mercury

Good
Apparent magnitude: 3.9
กลุ่มดาว: Aries
Angular diameter: 11.0"
Status: near superior conjunction

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 01h56m51s
เดคลิเนชัน: +14°50'46"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Pisces
Angular diameter: 13.1"
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: 23h23m48s
เดคลิเนชัน: -05°17'43"

Mars

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Capricornus
Angular diameter: 9.0"
Status: near eastern quadrature

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

Right ascension: 19h26m01s
เดคลิเนชัน: -22°50'24"

Jupiter

Excellent
Apparent magnitude: -2.4
กลุ่มดาว: Sagittarius
Angular diameter: 43.0"
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: 16h15m50s
เดคลิเนชัน: -20°15'21"

Saturn

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Taurus
Angular diameter: 16.6"
Status: near western quadrature

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

Right ascension: 03h19m44s
เดคลิเนชัน: +16°21'14"

Uranus

Fair
Apparent magnitude: 5.4
กลุ่มดาว: Libra
Angular diameter: 4.1"
Status: near western quadrature

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

Right ascension: 12h41m29s
เดคลิเนชัน: -03°40'45"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Sagittarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 16h03m45s
เดคลิเนชัน: -19°01'03"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Sagittarius
Angular diameter: 11856.1"
Status: Moon illumination 84.0%

Observation tip: Moon illumination 84.0%; good for observing lunar surface detail

Right ascension: 16h36m57s
เดคลิเนชัน: -26°52'28"