May 1931 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

24 himmelbegivenheder i alt, inklusive 5 månefaser og 1 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

May 1931 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: 1.7
Stjernebillede: Taurus
Angular diameter: 10.6"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 02h09m31s
Deklination: +10°06'25"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Aries
Angular diameter: 12.1"
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

Rektascension: 01h26m26s
Deklination: +07°10'42"

Mars

Excellent
Tilsyneladende magnitude: 0.9
Stjernebillede: Leo
Angular diameter: 6.5"
Status: near western quadrature

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

Rektascension: 09h18m42s
Deklination: +17°31'11"

Jupiter

Excellent
Tilsyneladende magnitude: -1.9
Stjernebillede: Cancer
Angular diameter: 34.1"
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

Rektascension: 07h14m15s
Deklination: +22°41'21"

Saturn

Excellent
Tilsyneladende magnitude: 0.4
Stjernebillede: Capricornus
Angular diameter: 17.5"
Status: near eastern quadrature

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

Rektascension: 19h39m53s
Deklination: -21°14'15"

Uranus

Fair
Tilsyneladende magnitude: 6.0
Stjernebillede: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektascension: 01h05m17s
Deklination: +06°16'13"

Neptune

Fair
Tilsyneladende magnitude: 7.9
Stjernebillede: Virgo
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascension: 10h20m49s
Deklination: +11°05'08"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aries
Angular diameter: 11619.9"
Status: Moon illumination 6.9%

Observation tip: Moon illumination 6.9%; good for observing lunar surface detail

Rektascension: 01h23m42s
Deklination: +09°40'56"