Excited by the B0.5 IV star S69-2. [1
For some reason the star described in Forbes' paper is not catalogued in SIMBAD. However, the object 2MASS J18443146-0016524
appears in the same direction and may be the same star, SIMBAD lists it as a "young stellar object" but it is actually classified in a 2010 IPHAS paper as "Be/YSO". [2
1. ^ Forbes, D. (1989). "Photometry and spectroscopy of stars in northern H II
regions", Astronomy and Astrophysics Supplement Series, Vol. 77, 439-445.
2. ^ Corradi, R. L. M., Valentini, M., Munari, U., et al. (2010). "IPHAS and
the symbiotic stars . II. New discoveries and a sample of the most common
mimics", Astronomy and Astrophysics, Vol. 509, A41. [2010A&A...509A..41C]