April 2018 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

21 himmelbegivenheder i alt, inklusive 4 månefaser og 3 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

April 2018 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: 1.5
Stjernebillede: Aries
Angular diameter: 10.5"
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: 00h18m19s
Deklination: +01°27'26"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Taurus
Angular diameter: 10.9"
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: 03h02m41s
Deklination: +17°21'42"

Mars

Excellent
Tilsyneladende magnitude: -0.0
Stjernebillede: Capricornus
Angular diameter: 9.5"
Status: near eastern quadrature

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

Rektascension: 19h07m49s
Deklination: -23°15'57"

Jupiter

Excellent
Tilsyneladende magnitude: -2.5
Stjernebillede: Scorpius
Angular diameter: 43.8"
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

Rektascension: 15h16m31s
Deklination: -16°49'53"

Saturn

Excellent
Tilsyneladende magnitude: 0.4
Stjernebillede: Capricornus
Angular diameter: 17.1"
Status: near eastern quadrature

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

Rektascension: 18h39m31s
Deklination: -22°14'14"

Uranus

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

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

Rektascension: 01h45m50s
Deklination: +10°22'11"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Pisces
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascension: 23h07m41s
Deklination: -06°35'53"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aries
Angular diameter: 12176.8"
Status: Moon illumination 1.6%

Observation tip: Moon illumination 1.6%; good for observing lunar surface detail

Rektascension: 00h48m31s
Deklination: +00°30'34"