April 1999 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

23 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 4 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

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

Planetary outlook

April 1999 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: 0.5
Sternbild: Pisces
Angular diameter: 8.0"
Status: near greatest eastern elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektaszension: 23h52m50s
Deklination: -03°02'39"

Venus

Excellent
Scheinbare Helligkeit: -4.0
Sternbild: Gemini
Angular diameter: 14.5"
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: 04h01m58s
Deklination: +22°14'09"

Mars

Excellent
Scheinbare Helligkeit: -1.5
Sternbild: Scorpius
Angular diameter: 15.5"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Rektaszension: 14h22m59s
Deklination: -12°26'27"

Jupiter

Excellent
Scheinbare Helligkeit: -2.1
Sternbild: Aries
Angular diameter: 33.2"
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

Rektaszension: 00h54m40s
Deklination: +04°40'12"

Saturn

Excellent
Scheinbare Helligkeit: 0.4
Sternbild: Taurus
Angular diameter: 16.3"
Status: near western quadrature

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

Rektaszension: 02h14m29s
Deklination: +11°10'34"

Uranus

Fair
Scheinbare Helligkeit: 5.9
Sternbild: Aquarius
Angular diameter: 3.5"
Status: near eastern quadrature

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

Rektaszension: 21h15m35s
Deklination: -16°35'35"

Neptune

Fair
Scheinbare Helligkeit: 7.8
Sternbild: Aquarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektaszension: 20h25m58s
Deklination: -18°55'04"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Aries
Angular diameter: 12805.5"
Status: Moon illumination 2.2%

Observation tip: Moon illumination 2.2%; good for observing lunar surface detail

Rektaszension: 00h35m38s
Deklination: -00°15'12"