July 1999 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 1999 mid-month observing conditions

Mercury

Good
Tilsyneladende magnitude: 2.0
Stjernebillede: Leo
Angular diameter: 10.8"
Status: near superior conjunction

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

Rektascension: 08h43m19s
Deklination: +14°37'54"

Venus

Excellent
Tilsyneladende magnitude: -4.7
Stjernebillede: Virgo
Angular diameter: 37.4"
Status: near superior 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: 10h11m13s
Deklination: +09°54'43"

Mars

Excellent
Tilsyneladende magnitude: -0.2
Stjernebillede: Scorpius
Angular diameter: 10.4"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Rektascension: 14h03m40s
Deklination: -13°59'13"

Jupiter

Excellent
Tilsyneladende magnitude: -2.3
Stjernebillede: Taurus
Angular diameter: 39.2"
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: 02h02m24s
Deklination: +11°05'59"

Saturn

Excellent
Tilsyneladende magnitude: 0.3
Stjernebillede: Taurus
Angular diameter: 17.4"
Status: near eastern quadrature

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

Rektascension: 02h54m27s
Deklination: +14°14'42"

Uranus

Fair
Tilsyneladende magnitude: 5.7
Stjernebillede: Aquarius
Angular diameter: 3.7"
Status: near eastern quadrature

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

Rektascension: 21h13m37s
Deklination: -16°47'39"

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: 20h22m03s
Deklination: -19°08'46"

Moon

Excellent
Tilsyneladende magnitude: -12.7
Stjernebillede: Leo
Angular diameter: 12499.3"
Status: Moon illumination 4.9%

Observation tip: Moon illumination 4.9%; good for observing lunar surface detail

Rektascension: 09h20m28s
Deklination: +15°58'23"