July 2002 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 2002 mid-month observing conditions

Mercury

Excellent
Tilsyneladende magnitude: -1.7
Stjernebillede: Cancer
Angular diameter: 5.2"
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

Rektascension: 07h06m19s
Deklination: +23°28'06"

Venus

Excellent
Tilsyneladende magnitude: -4.1
Stjernebillede: Virgo
Angular diameter: 16.9"
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

Rektascension: 10h27m51s
Deklination: +11°00'32"

Mars

Excellent
Tilsyneladende magnitude: 1.7
Stjernebillede: Leo
Angular diameter: 3.5"
Status: near western quadrature

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

Rektascension: 08h13m23s
Deklination: +21°03'19"

Jupiter

Excellent
Tilsyneladende magnitude: -1.8
Stjernebillede: Cancer
Angular diameter: 31.5"
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: 07h52m26s
Deklination: +21°14'20"

Saturn

Excellent
Tilsyneladende magnitude: 0.1
Stjernebillede: Gemini
Angular diameter: 16.8"
Status: near eastern quadrature

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

Rektascension: 05h29m33s
Deklination: +21°59'22"

Uranus

Fair
Tilsyneladende magnitude: 5.8
Stjernebillede: Pisces
Angular diameter: 3.7"
Status: near eastern quadrature

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

Rektascension: 22h02m26s
Deklination: -12°49'52"

Neptune

Fair
Tilsyneladende magnitude: 7.7
Stjernebillede: Aquarius
Angular diameter: 2.3"
Status: near eastern quadrature

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

Rektascension: 20h49m57s
Deklination: -17°39'07"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Virgo
Angular diameter: 12644.0"
Status: Moon illumination 25.7%

Observation tip: Moon illumination 25.7%; good for observing lunar surface detail

Rektascension: 11h42m33s
Deklination: +07°30'34"