May 1977 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 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

May 1977 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 1.8
กลุ่มดาว: Taurus
Angular diameter: 10.7"
Status: near greatest eastern elongation

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

Right ascension: 02h13m45s
เดคลิเนชัน: +10°28'21"

Venus

Excellent
Apparent magnitude: -4.7
กลุ่มดาว: Aries
Angular diameter: 36.4"
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: 00h50m04s
เดคลิเนชัน: +05°11'06"

Mars

Excellent
Apparent magnitude: 1.1
กลุ่มดาว: Aries
Angular diameter: 4.7"
Status: near eastern quadrature

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

Right ascension: 00h50m49s
เดคลิเนชัน: +04°10'53"

Jupiter

Excellent
Apparent magnitude: -2.0
กลุ่มดาว: Gemini
Angular diameter: 32.7"
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: 04h29m11s
เดคลิเนชัน: +21°16'24"

Saturn

Excellent
Apparent magnitude: 0.4
กลุ่มดาว: Leo
Angular diameter: 17.8"
Status: near western quadrature

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

Right ascension: 08h54m46s
เดคลิเนชัน: +18°25'25"

Uranus

Fair
Apparent magnitude: 5.4
กลุ่มดาว: Scorpius
Angular diameter: 4.0"
Status: near western quadrature

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

Right ascension: 14h27m37s
เดคลิเนชัน: -14°06'45"

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: 16h57m03s
เดคลิเนชัน: -21°06'36"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aries
Angular diameter: 11578.2"
Status: Moon illumination 8.6%

Observation tip: Moon illumination 8.6%; good for observing lunar surface detail

Right ascension: 01h13m15s
เดคลิเนชัน: +08°10'23"