VHK 83 (Var 83 in the VHK survey[6]) is a luminous blue variable (LBV) in the constellation Triangulum, in the Triangulum Galaxy.
The brightness varies slowly and unpredictably over a 1-2 magnitude visual range and can remain approximately constant for many years.
These variations, combined with the high luminosity and temperature of the star, caused it to be grouped with the Hubble-Sandage variables even before the term "Luminous blue variable" was more than a simple description.
[7] Despite widespread agreement that it is an LBV, it has yet to be observed in outburst, although the temperature has been observed to change in tandem with the brightness variations.
The hotter temperatures found from fitting the spectral energy distribution (SED) are consistent with the calculated luminosity of an LBV in the quiescent stage, but the spectrum is that of a cooler star.