January 1971 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

18 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

January 1971 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -0.1
กลุ่มดาว: Capricornus
Angular diameter: 7.2"
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: 18h02m46s
เดคลิเนชัน: -21°23'50"

Venus

Excellent
Apparent magnitude: -4.6
กลุ่มดาว: Sagittarius
Angular diameter: 26.5"
Status: near greatest eastern 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: 16h25m14s
เดคลิเนชัน: -17°49'23"

Mars

Excellent
Apparent magnitude: 1.4
กลุ่มดาว: Scorpius
Angular diameter: 5.0"
Status: near eastern quadrature

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

Right ascension: 15h30m57s
เดคลิเนชัน: -18°19'17"

Jupiter

Excellent
Apparent magnitude: -1.8
กลุ่มดาว: Scorpius
Angular diameter: 33.3"
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: 15h52m31s
เดคลิเนชัน: -19°18'18"

Saturn

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Taurus
Angular diameter: 19.1"
Status: near western quadrature

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

Right ascension: 02h55m41s
เดคลิเนชัน: +14°20'34"

Uranus

Fair
Apparent magnitude: 5.5
กลุ่มดาว: Libra
Angular diameter: 3.9"
Status: near eastern quadrature

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

Right ascension: 12h50m59s
เดคลิเนชัน: -04°42'31"

Neptune

Fair
Apparent magnitude: 8.0
กลุ่มดาว: Sagittarius
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 16h02m38s
เดคลิเนชัน: -19°02'18"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Virgo
Angular diameter: 11513.8"
Status: Moon illumination 89.3%

Observation tip: Moon illumination 89.3%; good for observing lunar surface detail

Right ascension: 10h16m43s
เดคลิเนชัน: +09°50'40"