January 1917 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

25 himmelbegivenheder i alt, inklusive 4 månefaser og 4 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

January 1917 mid-month observing conditions

Mercury

Good
Tilsyneladende magnitude: 2.5
Stjernebillede: Aquarius
Angular diameter: 9.5"
Status: near superior conjunction

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 20h21m09s
Deklination: -17°14'45"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Sagittarius
Angular diameter: 11.2"
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: 17h57m34s
Deklination: -22°50'56"

Mars

Excellent
Tilsyneladende magnitude: 1.1
Stjernebillede: Aquarius
Angular diameter: 4.0"
Status: near western quadrature

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

Rektascension: 20h27m34s
Deklination: -20°15'04"

Jupiter

Excellent
Tilsyneladende magnitude: -2.4
Stjernebillede: Aries
Angular diameter: 40.8"
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: 01h40m01s
Deklination: +09°07'12"

Saturn

Excellent
Tilsyneladende magnitude: -0.3
Stjernebillede: Cancer
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: 07h57m55s
Deklination: +20°53'21"

Uranus

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

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

Rektascension: 21h23m44s
Deklination: -15°59'58"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Leo
Angular diameter: 2.4"
Status: near eastern quadrature

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

Rektascension: 08h24m03s
Deklination: +19°05'25"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Libra
Angular diameter: 11728.1"
Status: Moon illumination 64.8%

Observation tip: Moon illumination 64.8%; good for observing lunar surface detail

Rektascension: 12h17m55s
Deklination: -07°34'24"