September 2001 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

22 sky events total, including 4 moon phases and 1 planetary events.

Daily Sky Events

All times are in local time (Asia/Shanghai)

Group Date Sunrise/Sunset Moonrise/Moonset Moon Phase Sky Events

Planetary outlook

September 2001 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: 0.1
Constellation: Libra
Angular diameter: 6.5"
Status: near greatest western elongation

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

Right ascension: 13h04m21s
Declination: -09°13'05"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Leo
Angular diameter: 12.0"
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: 09h40m41s
Declination: +14°36'24"

Mars

Excellent
Apparent magnitude: -0.7
Constellation: Capricornus
Angular diameter: 12.0"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Right ascension: 18h14m44s
Declination: -26°40'50"

Jupiter

Excellent
Apparent magnitude: -2.1
Constellation: Cancer
Angular diameter: 36.6"
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: 06h52m27s
Declination: +22°41'42"

Saturn

Excellent
Apparent magnitude: -0.0
Constellation: Gemini
Angular diameter: 18.7"
Status: near eastern quadrature

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

Right ascension: 04h55m02s
Declination: +20°47'25"

Uranus

Fair
Apparent magnitude: 5.8
Constellation: Aquarius
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 21h37m23s
Declination: -14°58'47"

Neptune

Fair
Apparent magnitude: 7.7
Constellation: Aquarius
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 20h34m31s
Declination: -18°34'31"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Leo
Angular diameter: 12902.4"
Status: Moon illumination 8.9%

Observation tip: Moon illumination 8.9%; good for observing lunar surface detail

Right ascension: 09h24m59s
Declination: +18°54'20"