December 2017 வான் நிகழ்வுகள்

Observer Location:Beijing (39.904°, 116.407°)

கோள்களின் கண்ணோட்டம்

22 sky events total, including 4 moon phases and 2 planetary events.

வான நிகழ்வுகள்

All times are in local time (Asia/Shanghai)

Group தேதி Sunrise/Sunset Moonrise/Moonset Moon Phase வான் நிகழ்வுகள்

Planetary outlook

December 2017 mid-month observing conditions

Mercury

Fair
Apparent magnitude: 4.4
நட்சத்திர மண்டலம்: 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

Right ascension: 17h11m19s
விலக்கம்: -20°42'55"

Venus

Excellent
Apparent magnitude: -3.9
நட்சத்திர மண்டலம்: 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

Right ascension: 17h04m08s
விலக்கம்: -22°36'43"

Mars

Excellent
Apparent magnitude: 1.6
நட்சத்திர மண்டலம்: 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

Right ascension: 14h06m34s
விலக்கம்: -11°45'21"

Jupiter

Excellent
Apparent magnitude: -1.7
நட்சத்திர மண்டலம்: 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

Right ascension: 14h46m52s
விலக்கம்: -15°00'49"

Saturn

Excellent
Apparent magnitude: 0.5
நட்சத்திர மண்டலம்: 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

Right ascension: 17h57m20s
விலக்கம்: -22°31'08"

Uranus

Fair
Apparent magnitude: 5.8
நட்சத்திர மண்டலம்: Aries
Angular diameter: 3.6"
Status: near western quadrature

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

Right ascension: 01h32m27s
விலக்கம்: +09°02'00"

Neptune

Fair
Apparent magnitude: 7.8
நட்சத்திர மண்டலம்: Pisces
Angular diameter: 2.3"
Status: near western quadrature

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

Right ascension: 22h53m33s
விலக்கம்: -08°03'26"

Moon

Excellent
Apparent magnitude: -12.7
நட்சத்திர மண்டலம்: Scorpius
Angular diameter: 11592.6"
Status: Moon illumination 9.7%

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

Right ascension: 15h05m27s
விலக்கம்: -12°07'14"