We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
sunny DaytimeWhat's Visible Now?
All Constellations » Capricornus » 

ρ Capricorni (rho Capricorni)

Altitude: 17.7°   Azimuth: 203.4°   Direction: South-South-West

ρ Capricorni is a multiple sub-giant star in the constellation of Capricornus.

ρ Capricorni visual magnitude is 4.78. Because of its moderate brightness, ρ Capricorni should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of ρ Capricorni is -0.014 arcsec per year in Right Ascension and -0.021 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ρ Capricorni (rho Capricorni) star
DSS2 image of ρ Capricorni. The red arrow shows the motion of ρ Capricorni during the next 10000 years (-2.33 arcmin in Right Ascension and -3.50 arcmin in declination);

Key facts about ρ Capricorni

4.78
Sub-giant

ρ Capricorni (rho Capricorni) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 17.7°
Azimuth: 203.4°
Direction: South-South-West

Celestial coordinates and finder chart of ρ Capricorni

ρ 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 ρ Capricorni are provided in the following table:

20h 28m 51s
-17° 48’ 48”
26.8°
-29.27°
Capricornus

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

Finder chart ρ Capricorni (rho Capricorni) star
Simplified finder chart for ρ Capricorni (rho Capricorni).

Visibility of ρ 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 ρ Capricorni (rho 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: 107.8°
Max altitude: 20.7°
Azimuth: 252.2°

Distance of ρ Capricorni from the Sun and relative movement

ρ Capricorni is distant 98.67 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

30.27 pc
98.67 ly
18 km/s
-0.014 arcsec/year
-0.021 arcsec/year

Spectral properties of ρ Capricorni

ρ Capricorni belongs to spectral class F2 and has a luminosity class of IV corresponding to a sub-giant star.

2.38
F2IV
6989K

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

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

ρ Capricorni star system properties

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

4.78
6.48
1.7
249.5 arcsec

Alternative designations of ρ Capricorni

ρ Capricorni
(rho Capricorni)
11 Capricorni
SAO163614
SAO163614
Gl 791.1A