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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:04  
clear_day Transit: 12:47  
SunsetSet: 18:30 south
sunny DaytimeWhat's Visible Now
All Constellations » Sagittarius » 

γ1 Sagittarii (gamma1 Sagittarii)

Altitude: -0.9°   Azimuth: 140.6°   Direction: South-East

γ1 Sagittarii is a variable and multiple supergiant star in the constellation of Sagittarius.

γ1 Sagittarii visual magnitude is 4.69. Because of its moderate brightness, γ1 Sagittarii 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 table below summarizes the key facts about γ1 Sagittarii:


γ1 Sagittarii (gamma1 Sagittarii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.9°
Azimuth: 140.6°
Direction: South-East

Celestial coordinates and finder chart of γ1 Sagittarii

γ1 Sagittarii is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of γ1 Sagittarii are provided in the following table:

18h 05m 01s
-29° 34’ 47”

The simplified sky map below shows the position of γ1 Sagittarii in the sky:

Finder chart γ1 Sagittarii (gamma1 Sagittarii) star
Simplified finder chart for γ1 Sagittarii (gamma1 Sagittarii).

Visibility of γ1 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 γ1 Sagittarii (gamma1 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: 119.6°
Max altitude: 8.9°
Azimuth: 240.4°

Digitized Sky Survey image of γ1 Sagittarii

The image below is a photograph of γ1 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 γ1 Sagittarii is 0.013 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of γ1 Sagittarii (gamma1 Sagittarii) star
DSS2 image of γ1 Sagittarii. The red arrow shows the motion of γ1 Sagittarii during the next 10000 years (2.17 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of γ1 Sagittarii from the Sun and relative movement

γ1 Sagittarii is distant 2,076.43 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.

636.94 pc
2,076.43 ly
-28 km/s
0.013 arcsec/year

Spectral properties of γ1 Sagittarii

γ1 Sagittarii belongs to spectral class F4 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where γ1 Sagittarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of γ1 Sagittarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of γ1 Sagittarii

γ1 Sagittarii
(gamma1 Sagittarii)