October 1984 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

25 sky events total, including 5 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

October 1984 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.4
กลุ่มดาว: Libra
Angular diameter: 4.7"
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: 13h32m53s
เดคลิเนชัน: -09°03'23"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Scorpius
Angular diameter: 12.4"
Status: near greatest western 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: 15h24m09s
เดคลิเนชัน: -19°22'57"

Mars

Excellent
Apparent magnitude: 0.3
กลุ่มดาว: Capricornus
Angular diameter: 7.5"
Status: near western quadrature

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

Right ascension: 18h30m06s
เดคลิเนชัน: -25°18'29"

Jupiter

Excellent
Apparent magnitude: -2.1
กลุ่มดาว: Capricornus
Angular diameter: 36.8"
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: 18h27m27s
เดคลิเนชัน: -23°26'19"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Scorpius
Angular diameter: 15.4"
Status: near western quadrature

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

Right ascension: 14h56m03s
เดคลิเนชัน: -14°36'28"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Sagittarius
Angular diameter: 3.6"
Status: near western quadrature

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

Right ascension: 16h37m19s
เดคลิเนชัน: -22°04'21"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Sagittarius
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 17h55m38s
เดคลิเนชัน: -22°17'36"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Gemini
Angular diameter: 11825.4"
Status: Moon illumination 78.4%

Observation tip: Moon illumination 78.4%; good for observing lunar surface detail

Right ascension: 05h04m22s
เดคลิเนชัน: +24°34'49"