July 1917 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

24 himlahändelser totalt, inklusive 4 månfaser och 3 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

July 1917 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: -1.9
Stjärnbild: Cancer
Angular diameter: 5.0"
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: 07h47m32s
Deklination: +22°49'49"

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: Leo
Angular diameter: 10.7"
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: 09h04m47s
Deklination: +18°20'32"

Mars

Excellent
Skenbar magnitud: 1.5
Stjärnbild: Gemini
Angular diameter: 4.1"
Status: near eastern quadrature

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

Rektascension: 05h21m02s
Deklination: +23°23'54"

Jupiter

Excellent
Skenbar magnitud: -2.1
Stjärnbild: Gemini
Angular diameter: 35.1"
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: 04h04m34s
Deklination: +19°57'25"

Saturn

Excellent
Skenbar magnitud: 0.3
Stjärnbild: Leo
Angular diameter: 16.5"
Status: near western quadrature

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

Rektascension: 08h19m40s
Deklination: +20°00'34"

Uranus

Fair
Skenbar magnitud: 5.8
Stjärnbild: Aquarius
Angular diameter: 3.7"
Status: near eastern quadrature

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

Rektascension: 21h42m00s
Deklination: -14°35'43"

Neptune

Fair
Skenbar magnitud: 8.0
Stjärnbild: Leo
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascension: 08h25m36s
Deklination: +19°03'02"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Gemini
Angular diameter: 11930.5"
Status: Moon illumination 16.0%

Observation tip: Moon illumination 16.0%; good for observing lunar surface detail

Rektascension: 04h09m26s
Deklination: +24°10'20"