January 1921 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

16 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

January 1921 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -1.3
Stjernebillede: Capricornus
Angular diameter: 4.7"
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: 19h41m26s
Deklination: -23°23'00"

Venus

Excellent
Tilsyneladende magnitude: -4.3
Stjernebillede: Pisces
Angular diameter: 18.8"
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: 22h45m17s
Deklination: -09°01'41"

Mars

Excellent
Tilsyneladende magnitude: 1.1
Stjernebillede: Pisces
Angular diameter: 4.8"
Status: near western quadrature

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

Rektascension: 22h38m10s
Deklination: -09°35'30"

Jupiter

Excellent
Tilsyneladende magnitude: -2.3
Stjernebillede: Virgo
Angular diameter: 41.3"
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: 11h20m32s
Deklination: +05°39'13"

Saturn

Excellent
Tilsyneladende magnitude: 0.8
Stjernebillede: Virgo
Angular diameter: 18.7"
Status: near eastern quadrature

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

Rektascension: 11h44m01s
Deklination: +04°07'25"

Uranus

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

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

Rektascension: 22h22m28s
Deklination: -10°56'29"

Neptune

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

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

Rektascension: 09h01m23s
Deklination: +16°59'52"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Pisces
Angular diameter: 11764.6"
Status: Moon illumination 27.8%

Observation tip: Moon illumination 27.8%; good for observing lunar surface detail

Rektascension: 23h47m25s
Deklination: +01°44'56"