Other major research projects carried out by Haro included the list of 8746 blue stars in the direction of the north galactic pole published jointly with W. J. Luyten in 1961.
哈羅參與的其他研究還包含了列出8746顆北銀極方向的藍色恆星，並與威廉·雅各·魯坦一起在1961年出版。