April 1981 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

22 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 3 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

Group Datum Sonnenaufgang/-untergang Mondaufgang/-untergang Mondphase Himmelsereignisse

Planetary outlook

April 1981 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: -0.8
Sternbild: 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

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

Venus

Excellent
Scheinbare Helligkeit: -3.9
Sternbild: 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

Rektaszension: 01h41m21s
Deklination: +09°23'52"

Mars

Excellent
Scheinbare Helligkeit: 1.1
Sternbild: 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

Rektaszension: 01h22m59s
Deklination: +08°09'49"

Jupiter

Excellent
Scheinbare Helligkeit: -2.4
Sternbild: 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

Rektaszension: 12h13m41s
Deklination: +00°14'08"

Saturn

Excellent
Scheinbare Helligkeit: 0.5
Sternbild: 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

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

Uranus

Fair
Scheinbare Helligkeit: 5.5
Sternbild: Scorpius
Angular diameter: 3.9"
Status: near eastern quadrature

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

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

Neptune

Fair
Scheinbare Helligkeit: 7.9
Sternbild: Sagittarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

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

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Virgo
Angular diameter: 11748.7"
Status: Moon illumination 83.4%

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

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