Hind's Variable Nebula
A reflection nebula remarkable for
its changes in brightness, which are due to wide variations in the star
that illuminates it – T Tauri. Discovered
by John Hind in 1852, it began to fade after 1861
and had disappeared from view to even the largest telescopes of the time
by 1868. It was not seen again until 1890 when it was observed by Edward
Barnard and Sherburne Burnham.
Since the 1930s it has been gradually brightening but remains a challenge
for the amateur observer.
AND STAR CLUSTERS