September 1998 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

21 sky events total, including 4 moon phases and 2 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 1998 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.3
Constellation: Virgo
Angular diameter: 5.3"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 10h57m56s
Declination: +08°34'00"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Virgo
Angular diameter: 10.0"
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: 10h48m42s
Declination: +09°00'23"

Mars

Excellent
Apparent magnitude: 1.7
Constellation: Leo
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: 09h15m25s
Declination: +17°08'50"

Jupiter

Excellent
Apparent magnitude: -2.9
Constellation: Pisces
Angular diameter: 49.7"
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: 23h37m31s
Declination: -04°07'47"

Saturn

Excellent
Apparent magnitude: 0.2
Constellation: Taurus
Angular diameter: 19.5"
Status: near eastern quadrature

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

Right ascension: 02h06m20s
Declination: +09°55'10"

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: 20h47m33s
Declination: -18°35'09"

Neptune

Fair
Apparent magnitude: 7.8
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: 20h06m38s
Declination: -19°54'38"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Cancer
Angular diameter: 12136.6"
Status: Moon illumination 29.8%

Observation tip: Moon illumination 29.8%; good for observing lunar surface detail

Right ascension: 07h07m28s
Declination: +18°45'19"