May 2009 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

20 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 2009 mid-month observing conditions

Mercury

Fair
Tilsyneladende magnitude: 5.3
Stjernebillede: Taurus
Angular diameter: 11.9"
Status: near superior conjunction

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

Rektascension: 03h49m09s
Deklination: +20°06'25"

Venus

Excellent
Tilsyneladende magnitude: -4.7
Stjernebillede: Aries
Angular diameter: 31.6"
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: 00h40m16s
Deklination: +03°39'46"

Mars

Excellent
Tilsyneladende magnitude: 1.2
Stjernebillede: Aries
Angular diameter: 4.6"
Status: near eastern quadrature

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

Rektascension: 01h05m12s
Deklination: +05°47'13"

Jupiter

Excellent
Tilsyneladende magnitude: -2.3
Stjernebillede: Aquarius
Angular diameter: 39.5"
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: 21h52m03s
Deklination: -13°42'32"

Saturn

Excellent
Tilsyneladende magnitude: 0.8
Stjernebillede: Virgo
Angular diameter: 18.5"
Status: near western quadrature

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

Rektascension: 11h07m50s
Deklination: +07°57'03"

Uranus

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

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

Rektascension: 23h45m33s
Deklination: -02°22'26"

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: 21h55m09s
Deklination: -13°04'18"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aquarius
Angular diameter: 11503.3"
Status: Moon illumination 71.5%

Observation tip: Moon illumination 71.5%; good for observing lunar surface detail

Rektascension: 20h04m51s
Deklination: -20°39'56"