- TCrB Charts and Photometry Tables (aavso.org)
Finding charts with comparison stars and related multicolor photometry tables for different scales of T CrB have been created for your convenience. The comparison star magnitudes reflect the revision of 02 July 2024 AND the July 16 re-introduction of the 102 comparison star on the B and D charts.
- Equilateral triangle (Wikipedia)
In geometry, an equilateral triangle is a triangle in which all three sides have the same length. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°. It is also a regular polygon, so it is also referred to as a regular triangle.
