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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sunny DaytimeWhat's Visible Now?
All Constellations » Capricornus » 

θ Capricorni (theta Capricorni)

Altitude: 14.0°   Azimuth: 216.5°   Direction: South-West

θ Capricorni is a main-sequence star in the constellation of Capricornus.

θ Capricorni visual magnitude is 4.07. Because of its moderate brightness, θ Capricorni should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of θ Capricorni is 0.083 arcsec per year in Right Ascension and -0.06 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of θ Capricorni (theta Capricorni) star
DSS2 image of θ Capricorni. The red arrow shows the motion of θ Capricorni during the next 10000 years (13.83 arcmin in Right Ascension and -10.00 arcmin in declination);

Key facts about θ Capricorni

4.07
Main-sequence

θ Capricorni (theta Capricorni) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 14.0°
Azimuth: 216.5°
Direction: South-West

Celestial coordinates and finder chart of θ Capricorni

θ Capricorni is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of θ Capricorni are provided in the following table:

21h 05m 56s
-17° 13’ 58”
31.31°
-37.29°
Capricornus

The simplified sky map below shows the position of θ Capricorni in the sky:

Finder chart θ Capricorni (theta Capricorni) star
Simplified finder chart for θ Capricorni (theta Capricorni).

Visibility of θ Capricorni from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's θ Capricorni (theta Capricorni) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.2°
Max altitude: 21.3°
Azimuth: 252.8°

Distance of θ Capricorni from the Sun and relative movement

θ Capricorni is distant 158.18 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

48.52 pc
158.18 ly
-11 km/s
0.083 arcsec/year
-0.06 arcsec/year

Spectral properties of θ Capricorni

θ Capricorni belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

0.64
A1V
10252K

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

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

Alternative designations of θ Capricorni

θ Capricorni
(theta Capricorni)
23 Capricorni
SAO164132
SAO164132