October 1987 天象

觀測地點:Beijing (39.904°, 116.407°)

每月天象事件總覽

24 天象事件總數,包括 4 月相與 3 行星事件。

每日天象事件

所有時間均為當地時間 (Asia/Shanghai)

Group 日期 日出/日落 月出/月落 月相 天象

Planetary outlook

October 1987 mid-month observing conditions

Mercury

Excellent
視星等: 0.4
星座: Scorpius
Angular diameter: 8.3"
Status: near superior conjunction

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

赤經: 14h38m05s
赤緯: -18°55'34"

Venus

Excellent
視星等: -3.9
星座: Scorpius
Angular diameter: 10.1"
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

赤經: 14h12m11s
赤緯: -12°42'54"

Mars

Excellent
視星等: 1.8
星座: Libra
Angular diameter: 3.6"
Status: near eastern quadrature

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

赤經: 12h16m09s
赤緯: -00°40'56"

Jupiter

Excellent
視星等: -2.9
星座: Aries
Angular diameter: 49.8"
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

赤經: 01h35m36s
赤緯: +08°15'47"

Saturn

Excellent
視星等: 0.5
星座: Sagittarius
Angular diameter: 15.7"
Status: near western quadrature

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

赤經: 17h04m02s
赤緯: -21°34'03"

Uranus

Fair
視星等: 5.7
星座: Sagittarius
Angular diameter: 3.6"
Status: near western quadrature

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

赤經: 17h31m40s
赤緯: -23°26'35"

Neptune

Fair
視星等: 7.9
星座: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

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

赤經: 18h23m31s
赤緯: -22°20'24"

Moon

Excellent
視星等: -12.7
星座: Cancer
Angular diameter: 11519.7"
Status: Moon illumination 47.8%

Observation tip: Moon illumination 47.8%; good for observing lunar surface detail

赤經: 07h46m22s
赤緯: +26°10'02"