February 1987 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

20 himmelbegivenheder i alt, inklusive 4 månefaser og 2 planetariske begivenheder.

Daglige himmelbegivenheder

Alle tider er i lokal tid (Asia/Shanghai)

Group Dato Solopgang/Solnedgang Måneopgang/Månenedgang Månefase Himmelbegivenheder

Planetary outlook

February 1987 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -0.0
Stjernebillede: Pisces
Angular diameter: 7.7"
Status: near superior conjunction

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

Rektascension: 22h56m15s
Deklination: -05°05'45"

Venus

Excellent
Tilsyneladende magnitude: -4.2
Stjernebillede: Capricornus
Angular diameter: 18.5"
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: 18h47m37s
Deklination: -20°54'38"

Mars

Excellent
Tilsyneladende magnitude: 1.1
Stjernebillede: Aries
Angular diameter: 5.5"
Status: near western quadrature

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

Rektascension: 01h36m24s
Deklination: +10°23'26"

Jupiter

Excellent
Tilsyneladende magnitude: -2.1
Stjernebillede: Pisces
Angular diameter: 34.1"
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

Rektascension: 23h48m21s
Deklination: -02°28'05"

Saturn

Excellent
Tilsyneladende magnitude: 0.5
Stjernebillede: Sagittarius
Angular diameter: 16.0"
Status: near eastern quadrature

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

Rektascension: 17h15m10s
Deklination: -21°31'23"

Uranus

Fair
Tilsyneladende magnitude: 5.7
Stjernebillede: Sagittarius
Angular diameter: 3.6"
Status: near eastern quadrature

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

Rektascension: 17h41m54s
Deklination: -23°30'02"

Neptune

Fair
Tilsyneladende magnitude: 7.9
Stjernebillede: Capricornus
Angular diameter: 2.2"
Status: near eastern quadrature

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

Rektascension: 18h31m12s
Deklination: -22°13'59"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Virgo
Angular diameter: 11764.1"
Status: Moon illumination 98.7%

Observation tip: Moon illumination 98.7%; good for observing lunar surface detail

Rektascension: 10h45m08s
Deklination: +10°59'45"