April 2011 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

19 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 2011 mid-month observing conditions

Mercury

Fair
Tilsyneladende magnitude: 4.1
Stjernebillede: Aries
Angular diameter: 11.6"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 00h56m27s
Deklination: +07°13'27"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Pisces
Angular diameter: 12.4"
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

Rektascension: 23h34m47s
Deklination: -04°13'35"

Mars

Excellent
Tilsyneladende magnitude: 1.2
Stjernebillede: Aries
Angular diameter: 4.0"
Status: near eastern quadrature

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

Rektascension: 00h37m50s
Deklination: +03°09'17"

Jupiter

Excellent
Tilsyneladende magnitude: -2.1
Stjernebillede: Aries
Angular diameter: 33.2"
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: 01h09m50s
Deklination: +06°14'48"

Saturn

Excellent
Tilsyneladende magnitude: 0.4
Stjernebillede: Libra
Angular diameter: 19.3"
Status: near western quadrature

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

Rektascension: 12h52m13s
Deklination: -02°37'42"

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: 00h08m08s
Deklination: +00°06'41"

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: 22h10m09s
Deklination: -11°50'28"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Virgo
Angular diameter: 12833.0"
Status: Moon illumination 85.8%

Observation tip: Moon illumination 85.8%; good for observing lunar surface detail

Rektascension: 10h41m00s
Deklination: +03°02'44"