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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
north SunriseRise: 7:49  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Sagittarius » 

ρ2 Sagittarii (rho2 Sagittarii)

Altitude: 2.9°   Azimuth: 124.7°   Direction: South-East

ρ2 Sagittarii is a giant star in the constellation of Sagittarius.

ρ2 Sagittarii visual magnitude is 5.87. Because of its reltive faintness, ρ2 Sagittarii should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about ρ2 Sagittarii:


ρ2 Sagittarii (rho2 Sagittarii) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 2.9°
Azimuth: 124.7°
Direction: South-East

Celestial coordinates and finder chart of ρ2 Sagittarii

ρ2 Sagittarii 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 ρ2 Sagittarii are provided in the following table:

19h 21m 50s
-18° 18’ 29”

The simplified sky map below shows the position of ρ2 Sagittarii in the sky:

Finder chart ρ2 Sagittarii (rho2 Sagittarii) star
Simplified finder chart for ρ2 Sagittarii (rho2 Sagittarii).

Visibility of ρ2 Sagittarii 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 ρ2 Sagittarii (rho2 Sagittarii) 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: 108.3°
Max altitude: 20.2°
Azimuth: 251.7°

Digitized Sky Survey image of ρ2 Sagittarii

The image below is a photograph of ρ2 Sagittarii from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of ρ2 Sagittarii is 0.102 arcsec per year in Right Ascension and -0.092 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ρ2 Sagittarii (rho2 Sagittarii) star
DSS2 image of ρ2 Sagittarii. The red arrow shows the motion of ρ2 Sagittarii during the next 1000 years (1.70 arcmin in Right Ascension and -1.53 arcmin in declination);

Distance of ρ2 Sagittarii from the Sun and relative movement

ρ2 Sagittarii is distant 358.64 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

110.01 pc
358.64 ly
-13 km/s
0.102 arcsec/year
-0.092 arcsec/year

Spectral properties of ρ2 Sagittarii

ρ2 Sagittarii belongs to spectral class G9


The red dot in the diagram below shows where ρ2 Sagittarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ρ2 Sagittarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of ρ2 Sagittarii

ρ2 Sagittarii
(rho2 Sagittarii)
45 Sagittarii