April 1917 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

23 himlahändelser totalt, inklusive 4 månfaser och 2 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

April 1917 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: -0.9
Stjärnbild: Taurus
Angular diameter: 6.1"
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: 02h31m14s
Deklination: +16°41'00"

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: Aries
Angular diameter: 9.7"
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: 01h21m14s
Deklination: +07°15'03"

Mars

Excellent
Skenbar magnitud: 1.2
Stjärnbild: Aries
Angular diameter: 3.9"
Status: near eastern quadrature

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

Rektascension: 00h55m54s
Deklination: +05°12'30"

Jupiter

Excellent
Skenbar magnitud: -2.0
Stjärnbild: Taurus
Angular diameter: 33.2"
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: 02h41m12s
Deklination: +14°44'38"

Saturn

Excellent
Skenbar magnitud: 0.1
Stjärnbild: Cancer
Angular diameter: 18.4"
Status: near western quadrature

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

Rektascension: 07h43m51s
Deklination: +21°37'58"

Uranus

Fair
Skenbar magnitud: 5.9
Stjärnbild: Aquarius
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektascension: 21h42m04s
Deklination: -14°31'58"

Neptune

Fair
Skenbar magnitud: nan
Stjärnbild: Leo
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascension: 08h17m12s
Deklination: +19°29'43"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Capricornus
Angular diameter: 12549.2"
Status: Moon illumination 48.3%

Observation tip: Moon illumination 48.3%; good for observing lunar surface detail

Rektascension: 19h53m19s
Deklination: -19°48'17"