- Source: Centre-to-centre distance
- Bukaan (fotografi)
- Maraton Beijing
- 2M1207
- GN-z11
- Katai Fornax
- Sagittarius A*
- Kepulauan Cayman
- Jalur kereta api Addis Ababa–Jibuti
- Pusat Galaksi
- Sisa Supernova Vela
- Centre-to-centre distance
- Geographical centre of Earth
- National Centre for Distance Education
- Centre Pompidou
- City centre
- Call centre
- Mustafa Centre
- Athabasca University
- Centre County, Pennsylvania
- Centre (geometry)
centre" target="_blank">Centre-to-centre" target="_blank">centre distance (c.t.c. distance or ctc distance) is a concept for distances, also called on-center spacing (o.c. spacing or oc spacing), heart distance, and pitch.
It is the distance between the centre" target="_blank">centre (the heart) of a column and the centre" target="_blank">centre (the heart) of another column. By expressing a distance in c.t.c., one can measure distances between columns with different diameters without confusion. This concept applies to other architectural features that may have variable diameters/widths and spacings, such as pillars or ceiling beams and baffles.