December 2017 Nebeske pojave

Lokacija opazovalca:Beijing (39.904°, 116.407°)

Pregled mesečnih nebesnih dogodkov

22 astronomskih dogodkov skupaj, vključno 4 lunine faze in 2 planetarni dogodki.

Dnevni nebesni dogodki

Vsi časi so v lokalnem času (Asia/Shanghai)

Group Datum Sončni vzhod/zahod Lunin vzhod/zahod Lunina faza Nebeske pojave

Planetary outlook

December 2017 mid-month observing conditions

Mercury

Fair
Navidezna magnituda: 4.4
Ozvezdje: Sagittarius
Angular diameter: 9.8"
Status: near greatest eastern elongation

Observation tip: Binoculars are recommended; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascenzija: 17h11m19s
Deklinacija: -20°42'55"

Venus

Excellent
Navidezna magnituda: -3.9
Ozvezdje: Sagittarius
Angular diameter: 9.8"
Status: near inferior 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: 17h04m08s
Deklinacija: -22°36'43"

Mars

Excellent
Navidezna magnituda: 1.6
Ozvezdje: Scorpius
Angular diameter: 4.5"
Status: near eastern quadrature

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

Rektascenzija: 14h06m34s
Deklinacija: -11°45'21"

Jupiter

Excellent
Navidezna magnituda: -1.7
Ozvezdje: Scorpius
Angular diameter: 32.0"
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

Rektascenzija: 14h46m52s
Deklinacija: -15°00'49"

Saturn

Excellent
Navidezna magnituda: 0.5
Ozvezdje: Sagittarius
Angular diameter: 15.1"
Status: near western quadrature

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

Rektascenzija: 17h57m20s
Deklinacija: -22°31'08"

Uranus

Fair
Navidezna magnituda: 5.8
Ozvezdje: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Rektascenzija: 01h32m27s
Deklinacija: +09°02'00"

Neptune

Fair
Navidezna magnituda: 7.8
Ozvezdje: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascenzija: 22h53m33s
Deklinacija: -08°03'26"

Moon

Excellent
Navidezna magnituda: -12.7
Ozvezdje: Scorpius
Angular diameter: 11592.6"
Status: Moon illumination 9.7%

Observation tip: Moon illumination 9.7%; good for observing lunar surface detail

Rektascenzija: 15h05m27s
Deklinacija: -12°07'14"