Gliese 816 (HIP 103800), a red dwarf star in Stars

Gliese 816 (HIP 103800) is a red dwarf star (M2.5) in Stars, 47 light years from Earth at magnitude 11.23.

Ashland Astronomy Studio October 3, 2026 Star

Gliese 816 (HIP 103800)

Gliese 816 is a red dwarf star in the constellation Stars. At 47 light years away, it shines at an apparent visual magnitude of 11.23. Galactic velocity: 68.5 km/s. Galactic orbit: 11,601 24,106 light years from galactic center.

Sky position: RA 21h 1m, Dec -6° 19.1'

Spectral type: M2.5

← Back to all stars

// Fade in · only sidebar boxes, never the main content if('IntersectionObserver' in window){var io=new IntersectionObserver(function(es){es.forEach(function(en){if(en.isIntersecting){en.target.style.opacity='1';en.target.style.transform='none';io.unobserve(en.target);}});},{threshold:.05});document.querySelectorAll('.side__box').forEach(function(el){el.style.opacity='0';el.style.transform='translateY(10px)';el.style.transition='opacity .4s ease,transform .4s ease';io.observe(el);});}