October 2021 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

24 sky events total, including 4 moon phases and 4 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

October 2021 mid-month observing conditions

Mercury

Good
Apparent magnitude: 2.0
กลุ่มดาว: Libra
Angular diameter: 9.3"
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: 12h41m32s
เดคลิเนชัน: -04°35'07"

Venus

Excellent
Apparent magnitude: -4.4
กลุ่มดาว: Sagittarius
Angular diameter: 21.4"
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: 16h23m29s
เดคลิเนชัน: -24°40'10"

Mars

Excellent
Apparent magnitude: 1.6
กลุ่มดาว: Libra
Angular diameter: 3.6"
Status: near eastern quadrature

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

Right ascension: 13h13m18s
เดคลิเนชัน: -07°06'57"

Jupiter

Excellent
Apparent magnitude: -2.6
กลุ่มดาว: Aquarius
Angular diameter: 44.5"
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: 21h40m22s
เดคลิเนชัน: -15°09'12"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Aquarius
Angular diameter: 17.3"
Status: near western quadrature

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

Right ascension: 20h38m01s
เดคลิเนชัน: -19°20'28"

Uranus

Fair
Apparent magnitude: 5.7
กลุ่มดาว: Taurus
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 02h45m11s
เดคลิเนชัน: +15°31'20"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 23h28m44s
เดคลิเนชัน: -04°38'43"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Aquarius
Angular diameter: 12222.3"
Status: Moon illumination 70.0%

Observation tip: Moon illumination 70.0%; good for observing lunar surface detail

Right ascension: 21h17m37s
เดคลิเนชัน: -20°56'23"