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🌎  Greenwich, United Kingdom [change]

σ1 Gruis (sigma1 Gruis)

σ1 Gruis is a main-sequence star in the constellation of Grus.

σ1 Gruis visual magnitude is 6.28. Because of its reltive faintness, σ1 Gruis 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 σ1 Gruis:

6.28
Main-sequence
σ1 Gruis (sigma1 Gruis) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of σ1 Gruis

σ1 Gruis is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of σ1 Gruis are provided in the following table:

22h 36m 29s
-40° 34’ 58”
358.33°
-59.17°
Grus

The simplified sky map below shows the position of σ1 Gruis in the sky:

Finder chart σ1 Gruis (sigma1 Gruis) star
Simplified finder chart for σ1 Gruis (sigma1 Gruis).

Visibility of σ1 Gruis from your location

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

σ1 Gruis (sigma1 Gruis) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of σ1 Gruis

The image below is a photograph of σ1 Gruis 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 σ1 Gruis is 0.048 arcsec per year in Right Ascension and -0.07 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of σ1 Gruis (sigma1 Gruis) star
DSS2 image of σ1 Gruis. The red arrow shows the motion of σ1 Gruis during the next 10000 years (8.00 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of σ1 Gruis from the Sun and relative movement

σ1 Gruis is distant 226.23 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

69.40 pc
226.23 ly
1 km/s
0.048 arcsec/year
-0.07 arcsec/year

Spectral properties of σ1 Gruis

σ1 Gruis belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.

2.07
A3V
8839K

The red dot in the diagram below shows where σ1 Gruis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of σ1 Gruis. Attribution: Richard Powell / CC BY-SA

Alternative designations of σ1 Gruis

σ1 Gruis
(sigma1 Gruis)
SAO231211
SAO231211