In the updated Hubble sequence galaxy morphological classification scheme by the French astronomer G�rard de Vaucouleurs in 1959, NGC 4889 is classified as an E4 type galaxy, which means it has a flat distribution of stars within its width.
22.
It is designated as "'S ( R ) Pec "'in the galaxy morphological classification scheme, though it is clearly a barred spiral ( deserving of the SB ( R ) Pec designation ), and was discovered by William Herschel on 16 May 1787.
23.
NGC 613 is inclined by an angle of 37?to the morphological classification of NGC 613 is SBbc ( rs ), indicating that it is a spiral galaxy with a bar across the nucleus ( SB ), a weak inner ring structure circling the bar ( rs ), and moderate to loosely wound spiral arms ( bc ).
24.
A morphological classification of ( R') SB ( rs ) bc indicates that NGC 6217 has a false outer ring-like structure formed from the spiral arms ( R'), a well-defined bar running across the nucleus ( SB ), a partial inner ring ( rs ), and moderately-wound spiral arms ( bc ).
