July 1988 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

18 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 1988 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.5
กลุ่มดาว: Cancer
Angular diameter: 6.5"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 06h16m48s
เดคลิเนชัน: +22°11'13"

Venus

Excellent
Apparent magnitude: -4.7
กลุ่มดาว: Gemini
Angular diameter: 39.9"
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: 05h00m49s
เดคลิเนชัน: +17°48'00"

Mars

Excellent
Apparent magnitude: -1.1
กลุ่มดาว: Aries
Angular diameter: 14.7"
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: 00h08m23s
เดคลิเนชัน: -03°29'26"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Taurus
Angular diameter: 35.7"
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: 03h46m57s
เดคลิเนชัน: +18°59'24"

Saturn

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Sagittarius
Angular diameter: 18.2"
Status: near western quadrature

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

Right ascension: 17h49m18s
เดคลิเนชัน: -22°19'26"

Uranus

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

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

Right ascension: 17h51m38s
เดคลิเนชัน: -23°38'39"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 18h36m24s
เดคลิเนชัน: -22°11'10"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 11582.4"
Status: Moon illumination 1.2%

Observation tip: Moon illumination 1.2%; good for observing lunar surface detail

Right ascension: 08h32m41s
เดคลิเนชัน: +22°14'01"