Theofanis Matsopoulos:
Aristarchos Telescope Ring Nebula
Theofanis Matsopoulos:
M1 Ha
Theofanis Matsopoulos:
NGC 2392
Theofanis Matsopoulos:
NGC 6804
Theofanis Matsopoulos:
NGC 7217 Aristarchos Telescope
Theofanis Matsopoulos:
NGC 7331
Theofanis Matsopoulos:
Aristarchos Telescope NGC6951