December 1987 Nebeske pojave

Lokacija opazovalca:Beijing (39.904°, 116.407°)

Pregled mesečnih nebesnih dogodkov

26 astronomskih dogodkov skupaj, vključno 4 lunine faze in 4 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 1987 mid-month observing conditions

Mercury

Excellent
Navidezna magnituda: -1.0
Ozvezdje: Sagittarius
Angular diameter: 4.7"
Status: near inferior conjunction

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

Rektascenzija: 17h06m46s
Deklinacija: -23°39'09"

Venus

Excellent
Navidezna magnituda: -3.9
Ozvezdje: Capricornus
Angular diameter: 11.8"
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

Rektascenzija: 19h31m56s
Deklinacija: -23°27'43"

Mars

Excellent
Navidezna magnituda: 1.7
Ozvezdje: Scorpius
Angular diameter: 4.1"
Status: near eastern quadrature

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

Rektascenzija: 14h45m41s
Deklinacija: -15°21'12"

Jupiter

Excellent
Navidezna magnituda: -2.6
Ozvezdje: Aries
Angular diameter: 44.5"
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: 01h15m04s
Deklinacija: +06°27'22"

Saturn

Excellent
Navidezna magnituda: 0.4
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: 17h31m46s
Deklinacija: -22°09'03"

Uranus

Fair
Navidezna magnituda: 5.8
Ozvezdje: Sagittarius
Angular diameter: 3.5"
Status: near western quadrature

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

Rektascenzija: 17h45m19s
Deklinacija: -23°33'51"

Neptune

Fair
Navidezna magnituda: 7.9
Ozvezdje: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

Rektascenzija: 18h30m54s
Deklinacija: -22°17'26"

Moon

Excellent
Navidezna magnituda: -12.7
Ozvezdje: Libra
Angular diameter: 11827.3"
Status: Moon illumination 35.5%

Observation tip: Moon illumination 35.5%; good for observing lunar surface detail

Rektascenzija: 12h33m05s
Deklinacija: -04°37'16"