January 1917 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

25 himlahändelser totalt, inklusive 4 månfaser och 4 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

January 1917 mid-month observing conditions

Mercury

Good
Skenbar magnitud: 2.5
Stjärnbild: 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
Skenbar magnitud: -3.9
Stjärnbild: 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
Skenbar magnitud: 1.1
Stjärnbild: 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
Skenbar magnitud: -2.4
Stjärnbild: 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
Skenbar magnitud: -0.3
Stjärnbild: 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
Skenbar magnitud: 6.0
Stjärnbild: 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
Skenbar magnitud: 7.8
Stjärnbild: 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
Skenbar magnitud: -12.7
Stjärnbild: 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"