Sky Watchers Association of North Bengal - SWAN - : Transit of Venus 2012 C-3~2 H-Alpha image (2)
Sky Watchers Association of North Bengal - SWAN - : In between C3 and C4. Transit of Venus 2012
Sky Watchers Association of North Bengal - SWAN - : Transit of Venus 2012 Low bandpass image
Sky Watchers Association of North Bengal - SWAN - : ISS Transit over the face of sun