Lambda Arae
Lambda Arae (λ Ara, λ Arae) is the Bayer designation for a star in the southern constellation of Ara. It is at a distance of from Earth. The apparent visual magnitude of this star is 4.77, making it bright enough to be seen with the naked eye.

The spectrum of this star matches a stellar classification of F4 V, which places it among the category of F-type main sequence stars. It shines with 4.6 times the luminosity of the Sun. The outer atmosphere is radiating this energy at an effective temperature of 6,725 K, giving it the yellow-white hue of an F-type star. There is some evidence that this may be a binary star system consisting of two stars with identical masses.

Examination of Lambda Arae with the Spitzer Space Telescope shows an excess of infrared emission at a wavelength of 70 μm. This suggests it may be orbited by a disk of dust at a radius of more than 15 astronomical units
Q105616
Bayer designation
Concept
Q523
star
Concept
Q8928
constellation
Concept
Q9253
Ara
CEL
Q124313
apparent visual magnitude
Concept
Q752171
spectrum
Concept
Q25377588
stellar classification
Concept
Q1353952
F-type main sequence star
Concept
Q6311
outer atmosphere
Concept
Q854050
effective temperature
Concept
Q25377588
F-type star
Concept
Q50053
binary star
Concept
Q201953
Spitzer Space Telescope
MISC
Q1326555
disk of dust
Concept
Q1811
astronomical unit
Concept
Q2545063
Lambda Arae
CEL
Q2545063
Lambda Arae
CEL
+4.77^^http://www.w3.org/2001/XMLSchema#decimal
4.77
NUMBER
+4^^http://www.w3.org/2001/XMLSchema#decimal
4
NUMBER
+4.6^^http://www.w3.org/2001/XMLSchema#decimal
4.6
NUMBER
+70^^http://www.w3.org/2001/XMLSchema#decimal
70
NUMBER
+15^^http://www.w3.org/2001/XMLSchema#decimal
15
NUMBER
instance of
constellation
apparent magnitude
instance of