M-type star · red

15 Tri

15 Tri is a red in the constellation Triangulum 632 ly from Earth. Its surface is about 3,578 K, about 0.6 times the Sun's surface temperature, and it shines at 231× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 632 years ago.

632 lybrightness mag 5.38M3III

Also catalogued as HR 750 · HD 16058 · HIP 12086

3,578 K
temperature
5.38
apparent magnitude
231× ☉
luminosity vs Sun
M3III
spectral type
Distance & comparison with our Sun
632 years
at light speed from Earth
0.62×
as hot as the Sun
231×
the Sun's light output
-1.06
absolute magnitude
Explore from here · roam the neighborhood
15 TriM-type
Sky regionTriangulumthis direction
StarHR 74830 ly
StarHR 74657 ly
StarHR 76959 ly
StarBeta Tristar
StarMothallahstar
Nearest stars
Bright stars in Triangulum
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.4To see it no equipment neededLook toward Triangulum

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.