January 1998 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

27 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

January 1998 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.2
กลุ่มดาว: Capricornus
Angular diameter: 5.8"
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: 18h12m51s
เดคลิเนชัน: -22°53'42"

Venus

Excellent
Apparent magnitude: -4.2
กลุ่มดาว: Capricornus
Angular diameter: 62.5"
Status: near superior 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: 19h51m52s
เดคลิเนชัน: -15°19'52"

Mars

Excellent
Apparent magnitude: 1.2
กลุ่มดาว: Aquarius
Angular diameter: 4.3"
Status: near western quadrature

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

Right ascension: 21h38m08s
เดคลิเนชัน: -15°16'20"

Jupiter

Excellent
Apparent magnitude: -2.0
กลุ่มดาว: Aquarius
Angular diameter: 33.8"
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: 21h51m23s
เดคลิเนชัน: -13°54'39"

Saturn

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Aries
Angular diameter: 17.5"
Status: near western quadrature

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

Right ascension: 00h56m32s
เดคลิเนชัน: +03°23'21"

Uranus

Fair
Apparent magnitude: 5.9
กลุ่มดาว: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Right ascension: 20h41m54s
เดคลิเนชัน: -18°52'18"

Neptune

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

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

Right ascension: 20h06m10s
เดคลิเนชัน: -19°54'30"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Leo
Angular diameter: 11718.5"
Status: Moon illumination 94.8%

Observation tip: Moon illumination 94.8%; good for observing lunar surface detail

Right ascension: 09h31m26s
เดคลิเนชัน: +12°47'06"