January 2003 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

25 天文事件合计,包括 4 月相和 3 行星事件。

每日天象

所有时间均为本地时间 (Asia/Shanghai)

Group 日期 日出/日落 月出/月落 月相 天象

Planetary outlook

January 2003 mid-month observing conditions

Mercury

Good
视星等: 3.2
星座: Capricornus
Angular diameter: 10.0"
Status: near greatest eastern elongation

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

赤经: 19h12m26s
赤纬: -18°59'54"

Venus

Excellent
视星等: -4.5
星座: Sagittarius
Angular diameter: 23.7"
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

赤经: 16h25m33s
赤纬: -18°10'36"

Mars

Excellent
视星等: 1.4
星座: Scorpius
Angular diameter: 4.8"
Status: near eastern quadrature

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

赤经: 15h45m57s
赤纬: -19°17'55"

Jupiter

Excellent
视星等: -2.6
星座: Leo
Angular diameter: 45.0"
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

赤经: 09h12m40s
赤纬: +16°58'59"

Saturn

Excellent
视星等: -0.3
星座: Gemini
Angular diameter: 20.3"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Saturn’s rings require a telescope to see clearly

赤经: 05h31m42s
赤纬: +22°01'52"

Uranus

Fair
视星等: 6.0
星座: Aquarius
Angular diameter: 3.4"
Status: near western quadrature

Observation tip: A telescope is required; Binoculars or a telescope are recommended

赤经: 21h57m34s
赤纬: -13°12'30"

Neptune

Fair
视星等: 7.9
星座: Aquarius
Angular diameter: 2.2"
Status: near western quadrature

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

赤经: 20h49m59s
赤纬: -17°41'19"

Moon

Excellent
视星等: -12.7
星座: Gemini
Angular diameter: 11771.8"
Status: Moon illumination 87.7%

Observation tip: Moon illumination 87.7%; good for observing lunar surface detail

赤经: 04h46m58s
赤纬: +22°51'47"