December 2018 Astronomické jevy

Poloha pozorovatele:Beijing (39.904°, 116.407°)

Přehled měsíčních nebeských úkazů

19 celkem nebeských úkazů, včetně 4 fáze Měsíce a 1 planetární jevy.

Denní nebeské úkazy

Všechny časy jsou v místním čase (Asia/Shanghai)

Group Datum Východ/západ Slunce Východ/západ Měsíce Fáze Měsíce Astronomické jevy

Planetary outlook

December 2018 mid-month observing conditions

Mercury

Excellent
Zdánlivá magnituda: -0.3
Souhvězdí: Sagittarius
Angular diameter: 6.7"
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

Rektascenze: 16h00m44s
Deklinace: -18°16'18"

Venus

Excellent
Zdánlivá magnituda: -4.8
Souhvězdí: Scorpius
Angular diameter: 32.9"
Status: near greatest eastern elongation

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Rektascenze: 14h27m23s
Deklinace: -11°35'54"

Mars

Excellent
Zdánlivá magnituda: 0.2
Souhvězdí: Pisces
Angular diameter: 8.4"
Status: near western quadrature

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

Rektascenze: 23h19m13s
Deklinace: -05°10'43"

Jupiter

Excellent
Zdánlivá magnituda: -1.8
Souhvězdí: Sagittarius
Angular diameter: 31.3"
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

Rektascenze: 16h25m48s
Deklinace: -21°01'27"

Saturn

Excellent
Zdánlivá magnituda: 0.6
Souhvězdí: Capricornus
Angular diameter: 15.1"
Status: near western quadrature

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

Rektascenze: 18h40m42s
Deklinace: -22°35'58"

Uranus

Fair
Zdánlivá magnituda: 5.8
Souhvězdí: Aries
Angular diameter: 3.7"
Status: near western quadrature

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

Rektascenze: 01h47m56s
Deklinace: +10°32'48"

Neptune

Fair
Zdánlivá magnituda: 7.8
Souhvězdí: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascenze: 23h01m50s
Deklinace: -07°16'08"

Moon

Excellent
Zdánlivá magnituda: -12.7
Souhvězdí: Pisces
Angular diameter: 11588.3"
Status: Moon illumination 45.4%

Observation tip: Moon illumination 45.4%; good for observing lunar surface detail

Rektascenze: 23h20m22s
Deklinace: -08°38'05"