Delta Telescopii [SEP] constellation
Delta Telescopii
The Bayer designation Delta Telescopii (δ Tel, δ Telescopii) is shared by two stars in the southern constellation Telescopium. They are separated by 0.16° on the sky.
- δ Telescopii
- δ Telescopii
and is estimated to be 5.2±0.4 times as massive and have 3.3±0.5 times the Sun's radius. Close by Alpha Telescopii are the two blue-white stars sharing the designation of Delta Telescopii. Delta¹ Telescopii is of spectral type B6IV and apparent magnitude 4.9, while Delta² Telescopii is of spectral type B3III and magnitude 5.1. They form an optical double, as the stars are estimated to be around 710 and 1190 light-years away respectively. The faint (magnitude 12.23) Gliese 754, a red dwarf of spectral type M4.5V,