December 2002 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

26 himmelbegivenheder i alt, inklusive 4 månefaser og 2 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

December 2002 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -0.6
Stjernebillede: Capricornus
Angular diameter: 5.4"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 18h41m02s
Deklination: -25°23'44"

Venus

Excellent
Tilsyneladende magnitude: -4.8
Stjernebillede: Scorpius
Angular diameter: 35.4"
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: 14h32m01s
Deklination: -11°59'16"

Mars

Excellent
Tilsyneladende magnitude: 1.6
Stjernebillede: Scorpius
Angular diameter: 4.3"
Status: near eastern quadrature

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

Rektascension: 14h26m00s
Deklination: -13°36'31"

Jupiter

Excellent
Tilsyneladende magnitude: -2.4
Stjernebillede: Leo
Angular diameter: 42.2"
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: 09h22m21s
Deklination: +16°08'02"

Saturn

Excellent
Tilsyneladende magnitude: -0.5
Stjernebillede: Gemini
Angular diameter: 20.6"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

Rektascension: 05h41m58s
Deklination: +22°03'27"

Uranus

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

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

Rektascension: 21h52m28s
Deklination: -13°40'15"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascension: 20h45m48s
Deklination: -17°57'27"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Aries
Angular diameter: 11500.6"
Status: Moon illumination 79.7%

Observation tip: Moon illumination 79.7%; good for observing lunar surface detail

Rektascension: 01h53m12s
Deklination: +08°01'19"