April 1987 天象

观测地点:Beijing (39.904°, 116.407°)

月度天象概览

21 天文事件合计,包括 4 月相和 0 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

April 1987 mid-month observing conditions

Mercury

Excellent
视星等: -0.3
星座: Aries
Angular diameter: 5.8"
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: 00h16m31s
赤纬: -00°57'11"

Venus

Excellent
视星等: -3.9
星座: Pisces
Angular diameter: 12.8"
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: 23h28m08s
赤纬: -04°52'45"

Mars

Excellent
视星等: 1.6
星座: Gemini
Angular diameter: 4.3"
Status: near western quadrature

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

赤经: 04h16m42s
赤纬: +22°13'50"

Jupiter

Excellent
视星等: -2.1
星座: Aries
Angular diameter: 33.3"
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: 00h39m55s
赤纬: +03°06'46"

Saturn

Excellent
视星等: 0.3
星座: Sagittarius
Angular diameter: 17.6"
Status: near eastern quadrature

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

赤经: 17h21m13s
赤纬: -21°32'14"

Uranus

Fair
视星等: 5.6
星座: Sagittarius
Angular diameter: 3.8"
Status: near eastern quadrature

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

赤经: 17h45m21s
赤纬: -23°32'20"

Neptune

Fair
视星等: 7.9
星座: Capricornus
Angular diameter: 2.3"
Status: near eastern quadrature

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

赤经: 18h34m32s
赤纬: -22°09'57"

Moon

Excellent
视星等: -12.7
星座: Scorpius
Angular diameter: 12424.7"
Status: Moon illumination 99.0%

Observation tip: Moon illumination 99.0%; good for observing lunar surface detail

赤经: 14h11m32s
赤纬: -15°33'44"