NGC4136 is a barred spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . Additionally, seven non-redshift measurements give a distance of . It was discovered by German-British astronomer William Herschel on 13 March 1785.
Eskridge, Frogel, and Pogge published a paper in 2002 describing the morphology of 205 closely spaced spiral or lenticular galaxies. The observations were made in the H-band of the infrared and in the B-band (blue). Eskridge and colleagues described NGC 4136 as follows:
NGC 4136 is a member of the NGC 4274 group (also known as LGG 279) which has at least 19 galaxies, including NGC 4020, NGC 4062, , NGC 4203, NGC 4245, , NGC 4274, NGC 4278, , NGC 4310, NGC 4314, NGC 4359, NGC 4414, , NGC 4525, , and MCG+05-29-066.
One supernova has been observed in NGC 4136: SN1941C (type unknown, mag. 16.8) was discovered by Rebecca B. Jones on 16 April 1941.