February 2009 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 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

February 2009 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.1
กลุ่มดาว: Aquarius
Angular diameter: 6.7"
Status: near inferior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 20h10m03s
เดคลิเนชัน: -19°52'28"

Venus

Excellent
Apparent magnitude: -4.8
กลุ่มดาว: Aries
Angular diameter: 36.3"
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: 00h26m01s
เดคลิเนชัน: +06°51'02"

Mars

Excellent
Apparent magnitude: 1.2
กลุ่มดาว: Aquarius
Angular diameter: 4.0"
Status: near eastern quadrature

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

Right ascension: 20h42m51s
เดคลิเนชัน: -19°15'21"

Jupiter

Excellent
Apparent magnitude: -2.0
กลุ่มดาว: Aquarius
Angular diameter: 32.7"
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: 20h48m14s
เดคลิเนชัน: -18°20'17"

Saturn

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Virgo
Angular diameter: 19.6"
Status: near eastern quadrature

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

Right ascension: 11h26m55s
เดคลิเนชัน: +05°59'24"

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: 23h28m38s
เดคลิเนชัน: -04°10'52"

Neptune

Fair
Apparent magnitude: 7.8
กลุ่มดาว: Aquarius
Angular diameter: 2.2"
Status: near eastern quadrature

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

Right ascension: 21h45m51s
เดคลิเนชัน: -13°50'58"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Scorpius
Angular diameter: 11875.0"
Status: Moon illumination 68.4%

Observation tip: Moon illumination 68.4%; good for observing lunar surface detail

Right ascension: 14h02m55s
เดคลิเนชัน: -18°05'04"