Altais

HR 7310 · HIP 94376 · δ Dra

👁️ Naked-eye

📋 A written introduction is coming — for now this page shows official values only.

Star

Apparent magnitude: 3.07 mag
Parallax: 33.48 mas → about 97.4 light-years away
Spectral type: G9III
Right ascension: 288.1388°
Declination: 67.6615°
Designation: HR 7310
Bayer designation: δ Dra
HIP number: 94376
IAU name adopted: 2016-08-21
Name language: Arabic
Name origin (IAU): Applied in recent times from a misreading of the script for the Arabic constellation name al-tinnin, "the Serpent," as it appeared incorrectly in a late Arabic star catalog, as part of the name for δ Dra. (The incorrect word, al-tais, is a real word in Arabic meaning "the He-goat," however it was never used by the pre-Islamic Arabians in stellar nomenclature. Furthermore, in the same Arabic source, in the name of ε Dra [formed parallel to that of δ Dra], the word was correctly written al-tinnin.)

Constellation

Light from this object takes about 97 years to reach Earth — the light you see tonight left around AD 1929 (official distance ÷ speed of light).
At magnitude 3.1 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
Declination 67.7° — from Seoul (37.6° N) it never sets and circles the northern sky all night.

Worked out from this object's official values.