December 1917 Nebeske pojave

Lokacija promatrača:Beijing (39.904°, 116.407°)

Pregled mjesečnih nebeskih događaja

20 astronomskih događaja ukupno, uključujući 4 faze Mjeseca i 1 planetarne događaje.

Dnevni nebeskih događaji

Sva vremena su u lokalnom vremenu (Asia/Shanghai)

Group Datum Izlazak/Zalazak Sunca Izlazak/Zalazak Mjeseca Faza Mjeseca Nebeske pojave

Planetary outlook

December 1917 mid-month observing conditions

Mercury

Excellent
Prividni sjaj: -0.5
Zviježđe: Capricornus
Angular diameter: 6.4"
Status: near greatest western elongation

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

Rektascenzija: 18h55m15s
Deklinacija: -24°51'32"

Venus

Excellent
Prividni sjaj: -4.7
Zviježđe: Aquarius
Angular diameter: 29.7"
Status: near superior conjunction

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

Rektascenzija: 20h47m25s
Deklinacija: -20°00'49"

Mars

Excellent
Prividni sjaj: 0.7
Zviježđe: Virgo
Angular diameter: 7.2"
Status: near eastern quadrature

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

Rektascenzija: 11h29m49s
Deklinacija: +05°48'36"

Jupiter

Excellent
Prividni sjaj: -2.8
Zviježđe: Gemini
Angular diameter: 48.0"
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

Rektascenzija: 04h10m10s
Deklinacija: +20°11'24"

Saturn

Excellent
Prividni sjaj: 0.1
Zviježđe: Leo
Angular diameter: 19.6"
Status: near eastern quadrature

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

Rektascenzija: 09h07m38s
Deklinacija: +17°17'40"

Uranus

Fair
Prividni sjaj: 5.9
Zviježđe: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

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

Rektascenzija: 21h33m08s
Deklinacija: -15°16'57"

Neptune

Fair
Prividni sjaj: 7.8
Zviježđe: Leo
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascenzija: 08h36m29s
Deklinacija: +18°25'15"

Moon

Excellent
Prividni sjaj: -12.7
Zviježđe: Capricornus
Angular diameter: 12388.0"
Status: Moon illumination 0.5%

Observation tip: Moon illumination 0.5%; good for observing lunar surface detail

Rektascenzija: 18h01m04s
Deklinacija: -23°33'52"