HR 5171 A

Stephenson 2-18

by admin
2020-09-132023-02-28

Stephenson 2-18 (St2-18) is a red supergiant located in the constellation Scutum. Also catalogued as Stephenson 2-DFK 1 and RSGC2-18, it is the current record… Read More »Stephenson 2-18

Mu Cephei

by admin
2020-03-302023-02-28

Mu Cephei (μ Cep) is a red supergiant located in the constellation Cepheus. With an average apparent magnitude of 4.08, it is the 10th brightest… Read More »Mu Cephei