diff --git a/supergiants.txt b/supergiants.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b8bee377579ca5683ff2d28488c126626cad7770
--- /dev/null
+++ b/supergiants.txt
@@ -0,0 +1,6 @@
+lum temp radius
+359749.33515574306 3801.042586542401 278.0558321276341
+416869.3834703363 4398.9623536929475 190.27839481572818
+1000000.0 5465.163391615079 140.8091131850408
+920449.5717531759 7837.395137000656 46.18755636109287
+779830.1105232593 10200.701560731035 19.604243576204354