January 1940 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

22 sky events total, including 5 moon phases and 0 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

January 1940 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.6
กลุ่มดาว: Capricornus
Angular diameter: 4.8"
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: 18h58m05s
เดคลิเนชัน: -24°03'31"

Venus

Excellent
Apparent magnitude: -4.0
กลุ่มดาว: Aquarius
Angular diameter: 12.4"
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: 21h53m44s
เดคลิเนชัน: -14°33'20"

Mars

Excellent
Apparent magnitude: 0.7
กลุ่มดาว: Aries
Angular diameter: 6.7"
Status: near western quadrature

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

Right ascension: 00h27m33s
เดคลิเนชัน: +02°55'07"

Jupiter

Excellent
Apparent magnitude: -2.3
กลุ่มดาว: Aries
Angular diameter: 37.8"
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: 00h13m11s
เดคลิเนชัน: +00°04'40"

Saturn

Excellent
Apparent magnitude: 0.4
กลุ่มดาว: Aries
Angular diameter: 18.0"
Status: near western quadrature

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

Right ascension: 01h35m14s
เดคลิเนชัน: +07°15'44"

Uranus

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

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

Right ascension: 03h02m40s
เดคลิเนชัน: +16°54'39"

Neptune

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

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

Right ascension: 11h45m10s
เดคลิเนชัน: +02°56'17"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Pisces
Angular diameter: 11481.1"
Status: Moon illumination 25.1%

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

Right ascension: 23h32m36s
เดคลิเนชัน: -00°08'53"