April 2017 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

22 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

April 2017 mid-month observing conditions

Mercury

Good
Skenbar magnitud: 3.8
Stjärnbild: Taurus
Angular diameter: 10.9"
Status: near superior conjunction

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 02h01m33s
Deklination: +15°15'59"

Venus

Excellent
Skenbar magnitud: -4.7
Stjärnbild: Pisces
Angular diameter: 49.0"
Status: near greatest eastern 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: 23h41m29s
Deklination: +02°55'06"

Mars

Excellent
Skenbar magnitud: 1.5
Stjärnbild: Taurus
Angular diameter: 4.1"
Status: near western quadrature

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

Rektascension: 03h32m14s
Deklination: +19°38'44"

Jupiter

Excellent
Skenbar magnitud: -2.5
Stjärnbild: Libra
Angular diameter: 44.2"
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: 13h06m23s
Deklination: -05°21'05"

Saturn

Excellent
Skenbar magnitud: 0.3
Stjärnbild: Sagittarius
Angular diameter: 17.4"
Status: near eastern quadrature

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

Rektascension: 17h50m12s
Deklination: -22°03'44"

Uranus

Fair
Skenbar magnitud: 6.0
Stjärnbild: Aries
Angular diameter: 3.4"
Status: near eastern quadrature

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

Rektascension: 01h31m36s
Deklination: +08°58'25"

Neptune

Fair
Skenbar magnitud: 7.8
Stjärnbild: Pisces
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascension: 22h59m36s
Deklination: -07°22'33"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Sagittarius
Angular diameter: 11477.4"
Status: Moon illumination 87.4%

Observation tip: Moon illumination 87.4%; good for observing lunar surface detail

Rektascension: 16h23m05s
Deklination: -16°25'25"