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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:08 
Transit: 12:48 
Sunset: 18:26
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All Constellations » Capricornus » 

α1 Capricorni (alpha1 Capricorni)

Below the horizon.  Rise: 15:25 | Tran: 20:19 | Set: 1:17
Alt: -24.34°   Az: 280.89°   Direction: West

α1 Capricorni is a multiple supergiant star of spectral class G3 in the constellation of Capricornus.

α1 Capricorni visual magnitude is 4.24. Because of its moderate brightness, α1 Capricorni is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of α1 Capricorni (alpha1 Capricorni) star
DSS2 image of α1 Capricorni. The red arrow shows the motion of α1 Capricorni during the next 10000 years (3.83 arcmin in Right Ascension and 0.17 arcmin in declination);

Celestial Coordinates

Apparent

20h 19m 01s
-12° 25’ 48”
07h 34m 30s
03h 53m 31s

J2000

20h 17m 38s
-12° 30’ 29”

Galactic Coordinates

31.09°
-24.7°

Finder Chart

Finder chart α1 Capricorni (alpha1 Capricorni) star
Simplified finder chart for α1 Capricorni (alpha1 Capricorni).

Magnitude, Color, Spectral Class

4.24
Supergiant

-2.38
G3I
4581K

The red dot in the diagram below shows where α1 Capricorni is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of α1 Capricorni. Attribution: Richard Powell / CC BY-SA

Star System Properties

α1 Capricorni is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the α1 Capricorni double sysyem:

4.24
4.64
0.4
377.7 arcsec

Distance, Radial Speed, Proper Motion

α1 Capricorni is distant 686.32 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

210.53
686.32
-26 km/s
0.023 arcsec/y
0.001"/y

Alternative Designations

α1 Capricorni
(alpha1 Capricorni)
5 Capricorni
SAO163422
SAO163422

Visibility from Your Location

Today's α1 Capricorni (alpha1 Capricorni) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 102.4°
Max altitude: 26.1°
Azimuth: 257.6°