July 1971 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

July 1971 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.2
กลุ่มดาว: Leo
Angular diameter: 6.1"
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: 09h09m14s
เดคลิเนชัน: +17°35'20"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Cancer
Angular diameter: 9.9"
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: 06h43m04s
เดคลิเนชัน: +23°14'17"

Mars

Excellent
Apparent magnitude: -2.3
กลุ่มดาว: Aquarius
Angular diameter: 21.8"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 21h44m48s
เดคลิเนชัน: -19°38'46"

Jupiter

Excellent
Apparent magnitude: -2.3
กลุ่มดาว: Scorpius
Angular diameter: 41.9"
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: 15h38m35s
เดคลิเนชัน: -18°36'54"

Saturn

Excellent
Apparent magnitude: 0.2
กลุ่มดาว: Gemini
Angular diameter: 17.1"
Status: near eastern quadrature

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

Right ascension: 04h05m03s
เดคลิเนชัน: +18°52'10"

Uranus

Fair
Apparent magnitude: 5.5
กลุ่มดาว: Libra
Angular diameter: 3.8"
Status: near western quadrature

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

Right ascension: 12h36m55s
เดคลิเนชัน: -03°15'08"

Neptune

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

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

Right ascension: 15h54m54s
เดคลิเนชัน: -18°36'15"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aries
Angular diameter: 12577.7"
Status: Moon illumination 52.9%

Observation tip: Moon illumination 52.9%; good for observing lunar surface detail

Right ascension: 01h01m39s
เดคลิเนชัน: +11°40'56"