December 1998 Eventi celesti

Posizione dell'osservatore:Beijing (39.904°, 116.407°)

Panoramica degli eventi celesti mensili

24 eventi celesti in totale, inclusi 4 fasi lunari e 2 eventi planetari.

Eventi celesti giornalieri

Tutti gli orari sono in ora locale (Asia/Shanghai)

Group Data Alba/Tramonto Sorgere/Tramontare della Luna Fase lunare Eventi celesti

Planetary outlook

December 1998 mid-month observing conditions

Mercury

Excellent
Magnitudine apparente: -0.1
Costellazione: 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

Ascensione retta: 16h03m25s
Declinazione: -18°01'13"

Venus

Excellent
Magnitudine apparente: -3.9
Costellazione: 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

Ascensione retta: 18h17m45s
Declinazione: -24°10'33"

Mars

Excellent
Magnitudine apparente: 1.2
Costellazione: 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

Ascensione retta: 12h38m12s
Declinazione: -02°10'07"

Jupiter

Excellent
Magnitudine apparente: -2.4
Costellazione: 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

Ascensione retta: 23h24m36s
Declinazione: -05°13'43"

Saturn

Excellent
Magnitudine apparente: 0.3
Costellazione: 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

Ascensione retta: 01h43m54s
Declinazione: +07°56'25"

Uranus

Fair
Magnitudine apparente: 5.9
Costellazione: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Ascensione retta: 20h51m03s
Declinazione: -18°18'53"

Neptune

Fair
Magnitudine apparente: 7.9
Costellazione: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

Ascensione retta: 20h10m27s
Declinazione: -19°44'56"

Moon

Excellent
Magnitudine apparente: -12.7
Costellazione: Scorpius
Angular diameter: 11468.2"
Status: Moon illumination 14.0%

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

Ascensione retta: 14h33m41s
Declinazione: -09°56'09"