April 1981 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

22 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

April 1981 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: -0.8
Stjärnbild: Aries
Angular diameter: 5.2"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascension: 00h46m22s
Deklination: +02°47'47"

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: Aries
Angular diameter: 9.7"
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: 01h41m21s
Deklination: +09°23'52"

Mars

Excellent
Skenbar magnitud: 1.1
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: 01h22m59s
Deklination: +08°09'49"

Jupiter

Excellent
Skenbar magnitud: -2.4
Stjärnbild: Libra
Angular diameter: 43.7"
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: 12h13m41s
Deklination: +00°14'08"

Saturn

Excellent
Skenbar magnitud: 0.5
Stjärnbild: Libra
Angular diameter: 19.3"
Status: near western quadrature

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

Rektascension: 12h22m35s
Deklination: +00°26'20"

Uranus

Fair
Skenbar magnitud: 5.5
Stjärnbild: Scorpius
Angular diameter: 3.9"
Status: near eastern quadrature

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

Rektascension: 15h49m03s
Deklination: -19°48'17"

Neptune

Fair
Skenbar magnitud: 7.9
Stjärnbild: Sagittarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascension: 17h37m24s
Deklination: -21°59'18"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Virgo
Angular diameter: 11748.7"
Status: Moon illumination 83.4%

Observation tip: Moon illumination 83.4%; good for observing lunar surface detail

Rektascension: 10h37m40s
Deklination: +11°17'44"