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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
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All Constellations » Orion » 

Tabit - π3 Orionis (pi3 Orionis)

Altitude: 43.0°   Azimuth: 154.8°   Direction: South-South-East

Tabit, also designated as π3 Orionis (pi3 Orionis), is a variable and double main-sequence star in the constellation of Orion.

Tabit visual magnitude is 3.19. Because of its moderate brightness, Tabit 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 Tabit:


Tabit - π3 Orionis (pi3 Orionis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 43.0°
Azimuth: 154.8°
Direction: South-South-East

Celestial coordinates and finder chart of Tabit

Tabit 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 Tabit are provided in the following table:

04h 49m 50s
+06° 57’ 41”

The simplified sky map below shows the position of Tabit in the sky:

Finder chart Tabit - π3 Orionis (pi3 Orionis) star
Simplified finder chart for Tabit - π3 Orionis (pi3 Orionis).

Visibility of Tabit 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 Tabit - π3 Orionis (pi3 Orionis) 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: 83.0°
Max altitude: 45.5°
Azimuth: 277.0°

Digitized Sky Survey image of Tabit

The image below is a photograph of Tabit 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 Tabit is 0.466 arcsec per year in Right Ascension and 0.012 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Tabit - π3 Orionis (pi3 Orionis) star
DSS2 image of Tabit. The red arrow shows the motion of Tabit during the next 1000 years (7.77 arcmin in Right Ascension and 0.20 arcmin in declination);

Distance of Tabit from the Sun and relative movement

Tabit is distant 26.16 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

8.03 pc
26.16 ly
24 km/s
0.466 arcsec/year
0.012 arcsec/year

Spectral properties of Tabit

Tabit belongs to spectral class F6 and has a luminosity class of V corresponding to a main-sequence star.


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

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

Tabit star system properties

Tabit is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Tabit double sysyem:

94.6 arcsec

Alternative designations of Tabit

π3 Orionis
(pi3 Orionis)