Photograph of the Nebula 405 Persei […]. Exposure 90 minutes, on the 14th Januay 1902 (titre original)
![Photograph of the Nebula 405 Persei […]. Exposure 90 minutes, on the 14th Januay 1902 (titre original)](https://bibnum.obspm.fr/files/large/a8d0d8ab3b88816a2dad4d69f617cbb45e714605.jpg)