December 1998 Himmelsereignisse

Beobachterstandort:Beijing (39.904°, 116.407°)

Monatliche Himmelsereignisse

24 Himmelereignisse insgesamt, einschließlich 4 Mondphasen und 2 Planetenereignisse.

Tägliche Himmelsereignisse

Alle Zeiten in Ortszeit (Asia/Shanghai)

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

Planetary outlook

December 1998 mid-month observing conditions

Mercury

Excellent
Scheinbare Helligkeit: -0.1
Sternbild: Sagittarius
Angular diameter: 7.5"
Status: near greatest eastern elongation

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

Rektaszension: 16h03m25s
Deklination: -18°01'13"

Venus

Excellent
Scheinbare Helligkeit: -3.9
Sternbild: Capricornus
Angular diameter: 10.0"
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: 18h17m45s
Deklination: -24°10'33"

Mars

Excellent
Scheinbare Helligkeit: 1.2
Sternbild: Libra
Angular diameter: 5.6"
Status: near eastern quadrature

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

Rektaszension: 12h38m12s
Deklination: -02°10'07"

Jupiter

Excellent
Scheinbare Helligkeit: -2.4
Sternbild: Pisces
Angular diameter: 40.1"
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: 23h24m36s
Deklination: -05°13'43"

Saturn

Excellent
Scheinbare Helligkeit: 0.3
Sternbild: Aries
Angular diameter: 19.1"
Status: near western quadrature

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

Rektaszension: 01h43m54s
Deklination: +07°56'25"

Uranus

Fair
Scheinbare Helligkeit: 5.9
Sternbild: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Rektaszension: 20h51m03s
Deklination: -18°18'53"

Neptune

Fair
Scheinbare Helligkeit: 7.9
Sternbild: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Rektaszension: 20h10m27s
Deklination: -19°44'56"

Moon

Excellent
Scheinbare Helligkeit: -12.7
Sternbild: Scorpius
Angular diameter: 11468.2"
Status: Moon illumination 14.0%

Observation tip: Moon illumination 14.0%; good for observing lunar surface detail

Rektaszension: 14h33m41s
Deklination: -09°56'09"