3 Capricorni

Above the horizon. Rise: 10:15 | Tran: 15:10 | Set: 20:05

Alt: 1.11° Az: 248.58° Direction: West-South-West

3 Capricorni is a multiple star of spectral class B9 in the constellation of Capricornus.

3 Capricorni visual magnitude is 6.32. Because of its faintness, 3 Capricorni is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 3 Capricorni. The red arrow shows the motion of 3 Capricorni during the next 10000 years (2.00 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 17m 45s

Declination -12° 15’ 31”

Hour Angle 04h 49m 02s

Sidereal Time 01h 06m 47s

J2000

Right Ascension 20h 16m 22s

Declination -12° 20’ 12”

Galactic Coordinates

Galactic Longitude 31.12°

Galactic Latitude -24.35°

Finder Chart

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Finder chart for 3 Capricorni.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.32

Class

3 Capricorni is also a Hg chemically peculiar star.

Absolute magnitude 0.28

Spectral Type B9

Color Index (B-V) 0.01

Temperature 10002K

The red dot in the diagram below shows where 3 Capricorni is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 3 Capricorni. Attribution: Richard Powell / CC BY-SA

Star System Properties

3 Capricorni is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 3 Capricorni double sysyem:

Main star magnitude 6.32

Secondary star magnitude 13.62

Magnitude difference 7.3

Separation 26.9 arcsec

Distance, Radial Speed, Proper Motion

3 Capricorni is distant 526.66 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 161.55

Distance (light year) 526.66

Radial Speed -20 km/s

Proper Motion RA 0.012 arcsec/y

Proper Motion Dec -0.013"/y

Alternative Designations

Flamsteed designation 3 Capricorni

Henry Draper Catalogue HD192666

SAO Catalogue SAO163402

Hipparcos Catalogue HIP99918

Durchmusterung Catalogue BD-12 5680

Aitken Double Star Catalogue ADS13600

Visibility from Your Location

Today's 3 Capricorni rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 102.3° RISE 10:15

Max altitude: 26.3° TRANSIT 15:10

Azimuth: 257.7° SET 20:05

Set Location

Other stars in Capricornus