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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:54  
clear_day Transit: 12:49  
SunsetSet: 18:43 south
sunny DaytimeWhat's Visible Now
All Constellations » Sagittarius » 

55 Sagittarii

Altitude: -53.4°   Azimuth: 19.2°   Direction: North-North-East

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

55 Sagittarii visual magnitude is 5.06. Because of its reltive faintness, 55 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 55 Sagittarii:


55 Sagittarii is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -53.4°
Azimuth: 19.2°
Direction: North-North-East

Celestial coordinates and finder chart of 55 Sagittarii

55 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 55 Sagittarii are provided in the following table:

19h 42m 31s
-16° 07’ 26”

The simplified sky map below shows the position of 55 Sagittarii in the sky:

Finder chart 55 Sagittarii star
Simplified finder chart for 55 Sagittarii.

Visibility of 55 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 55 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: 106.1°
Max altitude: 22.4°
Azimuth: 253.9°

Digitized Sky Survey image of 55 Sagittarii

The image below is a photograph of 55 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 55 Sagittarii is 0.068 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 55 Sagittarii star
DSS2 image of 55 Sagittarii. The red arrow shows the motion of 55 Sagittarii during the next 10000 years (11.33 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of 55 Sagittarii from the Sun and relative movement

55 Sagittarii is distant 174.61 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

53.56 pc
174.61 ly
-27 km/s
0.068 arcsec/year
-0.009 arcsec/year

Spectral properties of 55 Sagittarii

55 Sagittarii belongs to spectral class F1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 55 Sagittarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 55 Sagittarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of 55 Sagittarii

55 Sagittarii