June is the month dedicated to the Most Sacred Heart of Jesus. Find the litany here.
A combination of invocations
In 1899, Pope Leo XIII approved this Litany of the Sacred Heart of Jesus for public use. This litany is actually a synthesis of several other litanies dating back to the 17th century.
Father Croiset composed a litany in 1691, from which 17 invocations were used by Venerable Anne Madeleine Remuzat when she composed her litany in 1718 at Marseille. She joined an additional 10 invocations to those of Father Croiset, for a total of 27 invocations. Six more invocations, written by Sister Madeleine Joly of Dijon in 1686, were added by the Sacred Congregation for Rites when it was approved for public use in 1899.
This makes a total of 33 invocations, one for each year of life of our Lord Jesus Christ here on Earth. A partial indulgence is attached to this litany.
Click the link for the litany: Litany of the Sacred Heart of Jesus