Sadwēs
Sadwēs (سَدویس) is a Persian name for a bright star, either Fomalhaut, Antares, or Deneb.
Concordance, Etymology, History
Variants:
In Avestan, its name was Satavaēsa-, m. This denomination can be explained as a compound of sata-, “hundred”, and vaēsa-, which seems to be connected with Skt. vaiśa-, “servant”. Though its identification is debated, it is often linked to Fomalhaut (α Piscis Austrini); Henning thought it was Antares. A recent suggestion associating it with Deneb is not satisfactory. Pahlavi texts (Bundahišn X.11) mention it as connected to a lake named Sadwēs via cords of wind. Some scholars have speculated that it was originally a name for the rainbow, later reassigned to a star. Its single-star identity is confirmed in both Pahlavi Zoroastrian and Manichaean sources.
Mythology
IAU Working Group on Star Names
The name was discussed and approved by the IAU WGSN in 202x. As this star is already named ..., the WGSN chose ... (not to apply/ to apply the name to a neighbouring star/ to ...) in the IAU-CSN.
