A multiple stellar system embedded in a → reflection nebula
(NGC 6726/6727) in the → Corona Australis star forming region.
The three stars are within 1.5 → astronomical units
of each other and lie at a distance of 129 pc. Two of its components form a
→ double-line eclipsing binary with an orbital period
of almost 3 days. The primary is a → main sequence star
(mass 3.16 solar masses, effective temperature 12,000 K)
and the secondary a → pre-main sequence star
(mass 1.64 solar masses, effective temperature 4,900 K) with an age of a few million years.
A third spectroscopic component is in a wide orbit around the eclipsing pair.
A fourth star is located at a projected distance of about 0.3 arcsecond (40 AU) from
the compact tertiary system.
See also: → Corona Australis.
