February 1957 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

16 sky events total, including 3 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

February 1957 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.2
กลุ่มดาว: Aquarius
Angular diameter: 5.7"
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: 20h23m03s
เดคลิเนชัน: -20°21'40"

Venus

Excellent
Apparent magnitude: -3.9
กลุ่มดาว: Aquarius
Angular diameter: 10.2"
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: 20h56m36s
เดคลิเนชัน: -18°11'06"

Mars

Excellent
Apparent magnitude: 0.9
กลุ่มดาว: Taurus
Angular diameter: 6.3"
Status: near western quadrature

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

Right ascension: 02h31m51s
เดคลิเนชัน: +15°56'28"

Jupiter

Excellent
Apparent magnitude: -2.4
กลุ่มดาว: Libra
Angular diameter: 42.9"
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: 12h03m58s
เดคลิเนชัน: +01°11'35"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Sagittarius
Angular diameter: 16.2"
Status: near eastern quadrature

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

Right ascension: 16h47m59s
เดคลิเนชัน: -20°39'56"

Uranus

Fair
Apparent magnitude: 5.4
กลุ่มดาว: Leo
Angular diameter: 4.0"
Status: near western quadrature

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

Right ascension: 08h26m11s
เดคลิเนชัน: +19°51'38"

Neptune

Fair
Apparent magnitude: 7.9
กลุ่มดาว: Scorpius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 14h03m54s
เดคลิเนชัน: -10°42'04"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Virgo
Angular diameter: 13038.3"
Status: Moon illumination 99.7%

Observation tip: Moon illumination 99.7%; good for observing lunar surface detail

Right ascension: 10h03m04s
เดคลิเนชัน: +06°39'24"