July 2021 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

22 天文事件合计,包括 5 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 2021 mid-month observing conditions

Mercury

Excellent
视星等: -0.7
星座: Cancer
Angular diameter: 6.3"
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

赤经: 06h20m45s
赤纬: +22°25'50"

Venus

Excellent
视星等: -3.9
星座: Leo
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

赤经: 09h37m53s
赤纬: +15°52'34"

Mars

Excellent
视星等: 1.8
星座: Leo
Angular diameter: 3.8"
Status: near western quadrature

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

赤经: 09h33m58s
赤纬: +15°42'15"

Jupiter

Excellent
视星等: -2.7
星座: Pisces
Angular diameter: 46.9"
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: 22h14m40s
赤纬: -12°01'53"

Saturn

Excellent
视星等: 0.3
星座: Aquarius
Angular diameter: 18.5"
Status: near eastern quadrature

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

赤经: 20h56m43s
赤纬: -18°02'59"

Uranus

Fair
视星等: 5.8
星座: Taurus
Angular diameter: 3.5"
Status: near eastern quadrature

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

赤经: 02h47m43s
赤纬: +15°43'39"

Neptune

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

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

赤经: 23h36m28s
赤纬: -03°47'14"

Moon

Excellent
视星等: -12.7
星座: Virgo
Angular diameter: 12218.3"
Status: Moon illumination 24.5%

Observation tip: Moon illumination 24.5%; good for observing lunar surface detail

赤经: 11h37m58s
赤纬: +07°52'38"