September 1904 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

20 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 1904 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 5.3
Constellation: Virgo
Angular diameter: 10.5"
Status: near superior conjunction

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 11h32m15s
Declination: -00°46'14"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Libra
Angular diameter: 10.4"
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: 12h39m46s
Declination: -03°14'04"

Mars

Excellent
Apparent magnitude: 1.8
Constellation: Leo
Angular diameter: 3.9"
Status: near eastern quadrature

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

Right ascension: 09h29m51s
Declination: +16°04'02"

Jupiter

Excellent
Apparent magnitude: -2.8
Constellation: Aries
Angular diameter: 47.9"
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: 01h50m31s
Declination: +09°43'52"

Saturn

Excellent
Apparent magnitude: 0.5
Constellation: Aquarius
Angular diameter: 18.4"
Status: near western quadrature

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

Right ascension: 21h12m29s
Declination: -17°23'30"

Uranus

Fair
Apparent magnitude: 5.7
Constellation: Sagittarius
Angular diameter: 3.7"
Status: near western quadrature

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

Right ascension: 17h42m31s
Declination: -23°35'42"

Neptune

Fair
Apparent magnitude: 7.9
Constellation: Cancer
Angular diameter: 2.3"
Status: near eastern quadrature

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

Right ascension: 06h34m30s
Declination: +22°12'32"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Sagittarius
Angular diameter: 12306.2"
Status: Moon illumination 33.0%

Observation tip: Moon illumination 33.0%; good for observing lunar surface detail

Right ascension: 16h02m26s
Declination: -15°31'45"