September 2015 ปรากฏการณ์ท้องฟ้า

Observer Location:Beijing (39.904°, 116.407°)

ภาพรวมดาวเคราะห์

23 sky events total, including 4 moon phases and 3 planetary events.

เหตุการณ์ท้องฟ้า

All times are in local time (Asia/Shanghai)

Group วันที่ Sunrise/Sunset Moonrise/Moonset Moon Phase ปรากฏการณ์ท้องฟ้า

Planetary outlook

September 2015 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.6
กลุ่มดาว: Libra
Angular diameter: 8.6"
Status: near superior conjunction

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

Right ascension: 12h51m23s
เดคลิเนชัน: -09°34'08"

Venus

Excellent
Apparent magnitude: -4.8
กลุ่มดาว: Leo
Angular diameter: 42.0"
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: 09h06m04s
เดคลิเนชัน: +10°40'17"

Mars

Excellent
Apparent magnitude: 1.8
กลุ่มดาว: Leo
Angular diameter: 3.8"
Status: near eastern quadrature

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

Right ascension: 09h45m33s
เดคลิเนชัน: +14°46'11"

Jupiter

Excellent
Apparent magnitude: -1.7
กลุ่มดาว: Virgo
Angular diameter: 31.0"
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: 10h38m02s
เดคลิเนชัน: +09°35'34"

Saturn

Excellent
Apparent magnitude: 0.5
กลุ่มดาว: Scorpius
Angular diameter: 16.1"
Status: near western quadrature

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

Right ascension: 15h52m00s
เดคลิเนชัน: -18°20'10"

Uranus

Fair
Apparent magnitude: 5.8
กลุ่มดาว: Aries
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 01h13m12s
เดคลิเนชัน: +07°01'44"

Neptune

Fair
Apparent magnitude: 7.7
กลุ่มดาว: Pisces
Angular diameter: 2.4"
Status: near western quadrature

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

Right ascension: 22h39m59s
เดคลิเนชัน: -09°18'53"

Moon

Excellent
Apparent magnitude: -12.7
กลุ่มดาว: Libra
Angular diameter: 11448.6"
Status: Moon illumination 2.6%

Observation tip: Moon illumination 2.6%; good for observing lunar surface detail

Right ascension: 12h39m50s
เดคลิเนชัน: -03°20'03"