April 2001 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

20 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

April 2001 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -1.2
Stjernebillede: Aries
Angular diameter: 5.1"
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: 01h01m47s
Deklination: +04°48'23"

Venus

Excellent
Tilsyneladende magnitude: -4.5
Stjernebillede: Pisces
Angular diameter: 52.4"
Status: near greatest eastern 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: 23h59m09s
Deklination: +05°30'02"

Mars

Excellent
Tilsyneladende magnitude: -0.6
Stjernebillede: Sagittarius
Angular diameter: 12.0"
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: 17h38m53s
Deklination: -23°26'27"

Jupiter

Excellent
Tilsyneladende magnitude: -2.0
Stjernebillede: Gemini
Angular diameter: 34.4"
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: 04h34m38s
Deklination: +21°32'51"

Saturn

Excellent
Tilsyneladende magnitude: 0.2
Stjernebillede: Taurus
Angular diameter: 16.8"
Status: near western quadrature

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

Rektascension: 03h50m00s
Deklination: +18°16'31"

Uranus

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

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

Rektascension: 21h46m21s
Deklination: -14°09'57"

Neptune

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

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

Rektascension: 20h43m54s
Deklination: -17°57'49"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Capricornus
Angular diameter: 11595.3"
Status: Moon illumination 56.3%

Observation tip: Moon illumination 56.3%; good for observing lunar surface detail

Rektascension: 19h18m29s
Deklination: -22°58'43"