July 1987 Himmelbegivenheder

Observatørens placering:Beijing (39.904°, 116.407°)

Månedlig oversigt over himmelbegivenheder

23 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

July 1987 mid-month observing conditions

Mercury

Good
Tilsyneladende magnitude: 2.1
Stjernebillede: Cancer
Angular diameter: 10.1"
Status: near greatest eastern elongation

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

Rektascension: 06h31m13s
Deklination: +18°51'53"

Venus

Excellent
Tilsyneladende magnitude: -3.9
Stjernebillede: Cancer
Angular diameter: 9.9"
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: 06h48m55s
Deklination: +23°12'09"

Mars

Excellent
Tilsyneladende magnitude: 1.8
Stjernebillede: 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

Rektascension: 08h31m49s
Deklination: +20°04'16"

Jupiter

Excellent
Tilsyneladende magnitude: -2.4
Stjernebillede: Aries
Angular diameter: 39.8"
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

Rektascension: 01h44m45s
Deklination: +09°26'35"

Saturn

Excellent
Tilsyneladende magnitude: 0.2
Stjernebillede: Sagittarius
Angular diameter: 18.1"
Status: near western quadrature

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

Rektascension: 16h57m43s
Deklination: -21°07'18"

Uranus

Fair
Tilsyneladende magnitude: 5.6
Stjernebillede: Sagittarius
Angular diameter: 3.8"
Status: near western quadrature

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

Rektascension: 17h32m12s
Deklination: -23°26'44"

Neptune

Fair
Tilsyneladende magnitude: 7.8
Stjernebillede: Capricornus
Angular diameter: 2.3"
Status: near western quadrature

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

Rektascension: 18h26m46s
Deklination: -22°15'03"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Pisces
Angular diameter: 12637.2"
Status: Moon illumination 79.5%

Observation tip: Moon illumination 79.5%; good for observing lunar surface detail

Rektascension: 23h10m56s
Deklination: -07°04'39"