May 2018 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

21 himmelbegivenheder i alt, inklusive 4 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 2018 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -0.3
Stjernebillede: Taurus
Angular diameter: 6.2"
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

Rektascension: 02h04m05s
Deklination: +09°49'09"

Venus

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

Rektascension: 05h35m58s
Deklination: +24°44'31"

Mars

Excellent
Tilsyneladende magnitude: -0.8
Stjernebillede: Aquarius
Angular diameter: 12.8"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Rektascension: 20h08m28s
Deklination: -22°08'13"

Jupiter

Excellent
Tilsyneladende magnitude: -2.5
Stjernebillede: Scorpius
Angular diameter: 44.8"
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: 15h02m00s
Deklination: -15°52'11"

Saturn

Excellent
Tilsyneladende magnitude: 0.3
Stjernebillede: Capricornus
Angular diameter: 17.8"
Status: near eastern quadrature

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

Rektascension: 18h37m05s
Deklination: -22°16'25"

Uranus

Fair
Tilsyneladende magnitude: 5.9
Stjernebillede: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektascension: 01h52m15s
Deklination: +10°58'00"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Pisces
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascension: 23h10m31s
Deklination: -06°19'15"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Taurus
Angular diameter: 12591.5"
Status: Moon illumination 0.5%

Observation tip: Moon illumination 0.5%; good for observing lunar surface detail

Rektascension: 03h05m56s
Deklination: +12°16'45"