Theta Cephei (HIP 101093), a white bright giant star in Stars

Theta Cephei (HIP 101093) is a white bright giant star (A7 III) in Stars, 136 light years from Earth at magnitude 4.21.

Ashland Astronomy Studio October 3, 2026 Star

Theta Cephei (HIP 101093)

Theta Cephei is a white bright giant star in the constellation Stars. At 136 light years away, it shines at an apparent visual magnitude of 4.21. Iron abundance: 0.27 (186% of the Sun). Galactic velocity: 11.2 km/s. Galactic orbit: 23,871 29,997 light years from galactic center.

Sky position: RA 20h 29m, Dec +62° 59.6'

Spectral type: A7 III

← 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);});}