HR 5171

HR 5171 is a yellow hypergiant star, and the largest of its type. Its size is over 1,300^[1] (or 1,500)^[2] times larger and 630,000 times brighter^[1] than the Sun. It is orbited by a smaller yellow hypergiant and a blue star.

Possible impression.

HR 5171 Media

Interferometric images showing the passage of the companion in front of the primary
A visual band light curve for V766 Centauri. The main plot shows the long-term variability, and the inset plot shows the variation during the orbital period. Adapted from Chesneau et al. (2014)
Combined optical and infrared image of HR 5171(ESO/Digitized Sky Survey 2)

References

↑ ^1.0 ^1.1 Vanzi, L.. The yellow hypergiant HR 5171 A: Resolving a massive interacting binary in the common envelope phase (in en). Astronomy & Astrophysics 563 (2014-03-01). p. A71. doi:10.1051/0004-6361/201322421.
↑ Sanchez-Bermudez, J.. Multi-epoch VLTI-PIONIER imaging of the supergiant V766 Cen - Image of the close companion in front of the primary (in en). Astronomy & Astrophysics 606 (2017-10-01). p. L1. doi:10.1051/0004-6361/201731569.

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[vanzi-1] 1.0 ^1.1 Vanzi, L.. The yellow hypergiant HR 5171 A: Resolving a massive interacting binary in the common envelope phase (in en). Astronomy & Astrophysics 563 (2014-03-01). p. A71. doi:10.1051/0004-6361/201322421.

[2] Sanchez-Bermudez, J.. Multi-epoch VLTI-PIONIER imaging of the supergiant V766 Cen - Image of the close companion in front of the primary (in en). Astronomy & Astrophysics 606 (2017-10-01). p. L1. doi:10.1051/0004-6361/201731569.

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