July 2003 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

23 天文事件合计,包括 4 月相和 1 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

July 2003 mid-month observing conditions

Mercury

Excellent
视星等: -1.1
星座: Leo
Angular diameter: 5.2"
Status: near greatest western elongation

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

赤经: 08h22m51s
赤纬: +21°16'37"

Venus

Excellent
视星等: -3.9
星座: Cancer
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

赤经: 06h54m46s
赤纬: +23°09'02"

Mars

Excellent
视星等: -1.8
星座: Pisces
Angular diameter: 19.2"
Status: near eastern quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

赤经: 22h49m34s
赤纬: -13°03'19"

Jupiter

Excellent
视星等: -1.8
星座: Leo
Angular diameter: 31.6"
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

赤经: 09h33m29s
赤纬: +15°20'44"

Saturn

Excellent
视星等: 0.1
星座: Cancer
Angular diameter: 16.6"
Status: near eastern quadrature

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

赤经: 06h22m51s
赤纬: +22°33'29"

Uranus

Fair
视星等: 5.8
星座: Pisces
Angular diameter: 3.7"
Status: near eastern quadrature

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

赤经: 22h18m11s
赤纬: -11°23'34"

Neptune

Fair
视星等: 7.7
星座: Aquarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤经: 20h59m10s
赤纬: -17°05'47"

Moon

Excellent
视星等: -12.7
星座: Aquarius
Angular diameter: 12397.0"
Status: Moon illumination 98.0%

Observation tip: Moon illumination 98.0%; good for observing lunar surface detail

赤经: 20h46m07s
赤纬: -22°56'31"