May 2091 Sky Events

Observer Location:Beijing (39.904°, 116.407°)

Monthly Sky Events Overview

21 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

May 2091 mid-month observing conditions

Mercury

Excellent
Apparent magnitude: -1.0
Constellation: Taurus
Angular diameter: 5.4"
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: 02h35m26s
Declination: +13°34'00"

Venus

Excellent
Apparent magnitude: -3.9
Constellation: Taurus
Angular diameter: 10.4"
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: 02h14m07s
Declination: +11°55'50"

Mars

Excellent
Apparent magnitude: 0.2
Constellation: Virgo
Angular diameter: 9.1"
Status: near western quadrature

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

Right ascension: 10h51m11s
Declination: +09°01'47"

Jupiter

Excellent
Apparent magnitude: -2.5
Constellation: Capricornus
Angular diameter: 42.9"
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: 19h36m26s
Declination: -21°36'51"

Saturn

Excellent
Apparent magnitude: 0.1
Constellation: Gemini
Angular diameter: 16.8"
Status: near western quadrature

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

Right ascension: 05h35m48s
Declination: +22°16'59"

Uranus

Fair
Apparent magnitude: 6.0
Constellation: Pisces
Angular diameter: 3.4"
Status: near eastern quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

Right ascension: 23h21m32s
Declination: -04°57'44"

Neptune

Fair
Apparent magnitude: 7.8
Constellation: Leo
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 09h48m52s
Declination: +13°39'07"

Moon

Excellent
Apparent magnitude: -12.7
Constellation: Aries
Angular diameter: 11461.2"
Status: Moon illumination 11.2%

Observation tip: Moon illumination 11.2%; good for observing lunar surface detail

Right ascension: 01h01m47s
Declination: +03°19'13"