July 2004 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 2 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 2004 mid-month observing conditions

Mercury

Excellent
视星等: 0.0
星座: Leo
Angular diameter: 6.4"
Status: near greatest western elongation

Observation tip: Visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

赤经: 09h18m19s
赤纬: +16°37'48"

Venus

Excellent
视星等: -4.7
星座: Gemini
Angular diameter: 37.1"
Status: near greatest eastern 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: 04h50m57s
赤纬: +17°44'25"

Mars

Excellent
视星等: 1.8
星座: Leo
Angular diameter: 3.6"
Status: near western quadrature

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

赤经: 09h04m31s
赤纬: +17°57'47"

Jupiter

Excellent
视星等: -1.8
星座: Virgo
Angular diameter: 32.9"
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: 11h08m30s
赤纬: +06°44'54"

Saturn

Excellent
视星等: 0.1
星座: Cancer
Angular diameter: 16.5"
Status: near eastern quadrature

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

赤经: 07h16m21s
赤纬: +22°01'16"

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: 22h33m35s
赤纬: -09°55'11"

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: 21h08m15s
赤纬: -16°31'19"

Moon

Excellent
视星等: -12.7
星座: Gemini
Angular diameter: 11454.6"
Status: Moon illumination 5.6%

Observation tip: Moon illumination 5.6%; good for observing lunar surface detail

赤经: 05h40m49s
赤纬: +27°04'02"