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🌎  Greenwich, United Kingdom [change]

λ1 Tucanae (lambda1 Tucanae)

λ1 Tucanae is a variable and double sub-giant star in the constellation of Tucana.

λ1 Tucanae visual magnitude is 6.22. Because of its reltive faintness, λ1 Tucanae 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 λ1 Tucanae:

λ1 Tucanae (lambda1 Tucanae) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of λ1 Tucanae

λ1 Tucanae 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 λ1 Tucanae are provided in the following table:

00h 52m 24s
-69° 30’ 15”

The simplified sky map below shows the position of λ1 Tucanae in the sky:

Finder chart λ1 Tucanae (lambda1 Tucanae) star
Simplified finder chart for λ1 Tucanae (lambda1 Tucanae).

Visibility of λ1 Tucanae from your location

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

λ1 Tucanae (lambda1 Tucanae) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of λ1 Tucanae

The image below is a photograph of λ1 Tucanae 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 λ1 Tucanae is -0.007 arcsec per year in Right Ascension and -0.086 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of λ1 Tucanae (lambda1 Tucanae) star
DSS2 image of λ1 Tucanae. The red arrow shows the motion of λ1 Tucanae during the next 10000 years (-1.17 arcmin in Right Ascension and -14.33 arcmin in declination);

Distance of λ1 Tucanae from the Sun and relative movement

λ1 Tucanae is distant 199.63 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

61.24 pc
199.63 ly
30 km/s
-0.007 arcsec/year
-0.086 arcsec/year

Spectral properties of λ1 Tucanae

λ1 Tucanae belongs to spectral class F7 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where λ1 Tucanae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of λ1 Tucanae. Attribution: Richard Powell / CC BY-SA

λ1 Tucanae star system properties

λ1 Tucanae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the λ1 Tucanae double sysyem:

20.6 arcsec

Alternative designations of λ1 Tucanae

λ1 Tucanae
(lambda1 Tucanae)