January 2018 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

24 天象事件總數,包括 5 月相與 2 行星事件。

每日天象事件

所有時間均為當地時間 (Asia/Shanghai)

Group 日期 日出/日落 月出/月落 月相 天象

Planetary outlook

January 2018 mid-month observing conditions

Mercury

Excellent
視星等: -0.4
星座: Capricornus
Angular diameter: 5.4"
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

赤經: 18h22m31s
赤緯: -23°19'08"

Venus

Excellent
視星等: -3.9
星座: Capricornus
Angular diameter: 9.8"
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

赤經: 19h53m19s
赤緯: -21°51'09"

Mars

Excellent
視星等: 1.4
星座: Scorpius
Angular diameter: 5.1"
Status: near eastern quadrature

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

赤經: 15h22m45s
赤緯: -17°42'51"

Jupiter

Excellent
視星等: -1.9
星座: Scorpius
Angular diameter: 34.2"
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

赤經: 15h07m55s
赤緯: -16°28'04"

Saturn

Excellent
視星等: 0.5
星座: Capricornus
Angular diameter: 15.1"
Status: near eastern quadrature

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

赤經: 18h13m00s
赤緯: -22°30'53"

Uranus

Fair
視星等: 5.8
星座: Aries
Angular diameter: 3.5"
Status: near western quadrature

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

赤經: 01h32m06s
赤緯: +09°01'13"

Neptune

Fair
視星等: 7.8
星座: Pisces
Angular diameter: 2.2"
Status: near western quadrature

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

赤經: 22h55m56s
赤緯: -07°48'10"

Moon

Excellent
視星等: -12.7
星座: Capricornus
Angular diameter: 11446.8"
Status: Moon illumination 4.0%

Observation tip: Moon illumination 4.0%; good for observing lunar surface detail

赤經: 18h08m58s
赤緯: -19°50'20"