B-type star · blue-white star
Theta Ara
Theta Ara is a blue-white star in the constellation Ara 813 ly from Earth. Its surface is about 11,590 K, about 2.0 times the Sun's surface temperature, and it shines at 1,878× the Sun's brightness. At magnitude 3.6 it is bright enough to see with the naked eye; the light you see left it 813 years ago.
Also catalogued as HR 6743 · HD 165024 · HIP 88714
11,590 K
temperature
3.65
apparent magnitude
1,878× ☉
luminosity vs Sun
B2Ib
spectral type
Distance & comparison with our Sun
813 years
at light speed from Earth
2.01×
as hot as the Sun
1,878×
the Sun's light output
-3.33
absolute magnitude
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VISIBLE TO THE NAKED EYE
Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.