October 2017 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

23 sky events total, including 4 moon phases and 3 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

October 2017 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.2
Constellation: Libra
Angular diameter: 4.7"
Status: near greatest western elongation

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

Right ascension: 13h37m43s
Declination: -09°39'50"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Libra
Angular diameter: 10.8"
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: 12h05m01s
Declination: +01°06'03"

Mars

Excellent
Apparent magnitude: 1.8
Constellation: Virgo
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: 11h43m48s
Declination: +03°01'05"

Jupiter

Excellent
Apparent magnitude: -1.7
Constellation: Libra
Angular diameter: 30.7"
Status: near western 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: 13h56m46s
Declination: -10°50'44"

Saturn

Excellent
Apparent magnitude: 0.5
Constellation: Sagittarius
Angular diameter: 15.8"
Status: near western quadrature

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

Right ascension: 17h30m28s
Declination: -22°13'46"

Uranus

Fair
Apparent magnitude: 5.7
Constellation: Aries
Angular diameter: 3.7"
Status: near eastern quadrature

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

Right ascension: 01h40m01s
Declination: +09°44'24"

Neptune

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

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

Right ascension: 22h54m32s
Declination: -07°58'42"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Leo
Angular diameter: 12319.0"
Status: Moon illumination 23.7%

Observation tip: Moon illumination 23.7%; good for observing lunar surface detail

Right ascension: 09h43m55s
Declination: +13°43'42"