January 2004 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

25 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

January 2004 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.1
กลุ่มดาว: Capricornus
Angular diameter: 7.0"
Status: near greatest eastern 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: 18h01m59s
เดคลิเนชัน: -21°36'49"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Pisces
Angular diameter: 13.6"
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: 22h11m58s
เดคลิเนชัน: -12°51'05"

Mars

Excellent
Apparent magnitude: 0.4
กลุ่มดาว: Aries
Angular diameter: 7.6"
Status: near western quadrature

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

Right ascension: 01h05m01s
เดคลิเนชัน: +07°18'08"

Jupiter

Excellent
Apparent magnitude: -2.3
กลุ่มดาว: Virgo
Angular diameter: 41.3"
Status: near eastern 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: 11h20m28s
เดคลิเนชัน: +05°38'18"

Saturn

Excellent
Apparent magnitude: -0.3
กลุ่มดาว: Cancer
Angular diameter: 20.6"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Right ascension: 06h37m20s
เดคลิเนชัน: +22°31'05"

Uranus

Fair
Apparent magnitude: 6.0
กลุ่มดาว: Pisces
Angular diameter: 3.4"
Status: near western quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Right ascension: 22h12m05s
เดคลิเนชัน: -11°54'22"

Neptune

Fair
Apparent magnitude: 7.8
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: 20h58m35s
เดคลิเนชัน: -17°10'19"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Libra
Angular diameter: 12406.0"
Status: Moon illumination 52.3%

Observation tip: Moon illumination 52.3%; good for observing lunar surface detail

Right ascension: 13h23m21s
เดคลิเนชัน: -06°20'19"