V735 Sgr was known as an enigmatic star with rapid brightness variations. Long-term OGLE photometry, brightness measurements in infrared bands, and recently obtained moderate resolution spectrum from the 6.5-m Magellan telescope show that this star is an active young stellar object of Herbig Ae/Be type.
PLEASE cite the following paper when refering to these results:
Pietrukowicz et al.,
2018, Acta Astronomica, 68, 259
(arXiv:1810.10819)