October 1998 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 sky events total, including 4 moon phases and 2 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

October 1998 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.5
กลุ่มดาว: Scorpius
Angular diameter: 4.9"
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: 14h08m05s
เดคลิเนชัน: -13°36'44"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Libra
Angular diameter: 9.7"
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: 13h06m36s
เดคลิเนชัน: -05°41'09"

Mars

Excellent
Apparent magnitude: 1.7
กลุ่มดาว: Virgo
Angular diameter: 4.3"
Status: near eastern quadrature

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

Right ascension: 10h27m44s
เดคลิเนชัน: +11°07'36"

Jupiter

Excellent
Apparent magnitude: -2.8
กลุ่มดาว: Pisces
Angular diameter: 48.2"
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: 23h24m11s
เดคลิเนชัน: -05°31'29"

Saturn

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Aries
Angular diameter: 20.0"
Status: near eastern quadrature

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

Right ascension: 01h58m49s
เดคลิเนชัน: +09°10'46"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aquarius
Angular diameter: 3.6"
Status: near western quadrature

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

Right ascension: 20h45m42s
เดคลิเนชัน: -18°41'35"

Neptune

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

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

Right ascension: 20h05m52s
เดคลิเนชัน: -19°57'36"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 11814.4"
Status: Moon illumination 25.1%

Observation tip: Moon illumination 25.1%; good for observing lunar surface detail

Right ascension: 09h34m21s
เดคลิเนชัน: +13°35'18"