May 1917 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

22 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

May 1917 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 6.4
Constellation: Taurus
Angular diameter: 12.1"
Status: near superior conjunction

Observation tip: A telescope is required; Mercury stays close to the Sun; best seen at dusk or dawn

Right ascension: 03h36m40s
Declination: +19°05'32"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Taurus
Angular diameter: 9.7"
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: 03h45m18s
Declination: +19°35'00"

Mars

Excellent
Apparent magnitude: 1.3
Constellation: Taurus
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: 02h21m13s
Declination: +13°37'11"

Jupiter

Excellent
Apparent magnitude: -2.0
Constellation: Taurus
Angular diameter: 32.8"
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: 03h09m22s
Declination: +16°49'00"

Saturn

Excellent
Apparent magnitude: 0.2
Constellation: Cancer
Angular diameter: 17.5"
Status: near western quadrature

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

Right ascension: 07h51m29s
Declination: +21°20'14"

Uranus

Fair
Apparent magnitude: 5.9
Constellation: Aquarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Right ascension: 21h44m49s
Declination: -14°19'13"

Neptune

Fair
Apparent magnitude: 7.9
Constellation: Leo
Angular diameter: 2.2"
Status: near western quadrature

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

Right ascension: 08h18m21s
Declination: +19°26'29"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Pisces
Angular diameter: 12569.6"
Status: Moon illumination 39.6%

Observation tip: Moon illumination 39.6%; good for observing lunar surface detail

Right ascension: 22h24m14s
Declination: -05°31'08"