August 1990 Himmelshändelser

Observatörens plats:Beijing (39.904°, 116.407°)

Månadsöversikt över himlahändelser

25 himlahändelser totalt, inklusive 4 månfaser och 1 planetära händelser.

Dagliga himlahändelser

Alla tider är i lokal tid (Asia/Shanghai)

Group Datum Soluppgång/Solnedgång Månuppgång/Månnedgång Månfas Himmelshändelser

Planetary outlook

August 1990 mid-month observing conditions

Mercury

Excellent
Skenbar magnitud: 0.5
Stjärnbild: Virgo
Angular diameter: 7.9"
Status: near superior conjunction

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

Rektascension: 11h15m57s
Deklination: +02°12'27"

Venus

Excellent
Skenbar magnitud: -3.9
Stjärnbild: Leo
Angular diameter: 10.6"
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

Rektascension: 08h14m35s
Deklination: +20°15'40"

Mars

Excellent
Skenbar magnitud: -0.2
Stjärnbild: Taurus
Angular diameter: 9.9"
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

Rektascension: 03h16m46s
Deklination: +16°10'27"

Jupiter

Excellent
Skenbar magnitud: -1.8
Stjärnbild: Leo
Angular diameter: 32.0"
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

Rektascension: 08h06m01s
Deklination: +20°34'31"

Saturn

Excellent
Skenbar magnitud: 0.2
Stjärnbild: Capricornus
Angular diameter: 18.2"
Status: near western quadrature

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

Rektascension: 19h26m04s
Deklination: -21°56'21"

Uranus

Fair
Skenbar magnitud: 5.6
Stjärnbild: Capricornus
Angular diameter: 3.8"
Status: near western quadrature

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

Rektascension: 18h26m07s
Deklination: -23°38'04"

Neptune

Fair
Skenbar magnitud: 7.8
Stjärnbild: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascension: 18h52m42s
Deklination: -22°01'27"

Moon

Excellent
Skenbar magnitud: -12.7
Stjärnbild: Gemini
Angular diameter: 12605.0"
Status: Moon illumination 34.9%

Observation tip: Moon illumination 34.9%; good for observing lunar surface detail

Rektascension: 04h29m09s
Deklination: +26°18'08"