Spectral and morphological studies of an “infrared” nebula in the region of Cyg OB7

Spectral and morphological studies of an infrared nebula in the neighborhood of Cyg OB7 discovered in 2007 are reported. It is shown that over the last several years the brightness and shape of the nebula have changed significantly. Spectral observations of the nebula made with the 2.6-m telescope at the Byurakan Observatory in 2004 and 2005 reveal the existence of a faint trace of continuum spectrum, indicating the existence of a star inside the dark cloud. Classification of these spectra shows that over one year the star’s spectral class changed from late G to early K. It is also shown that the absorption in the direction of the nebula is as high as 8^m–10^m. __________ Translated from Astrofizika, Vol. 50, No. 1, pp. 17–27 (February 2007).