diff --git a/.gitmodules b/.gitmodules
index 6ddc3978..c1b4332f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -19,3 +19,6 @@
 [submodule "thirdparty/rapidcsv"]
 	path = thirdparty/rapidcsv
 	url = https://github.com/d99kris/rapidcsv.git
+[submodule "thirdparty/arcsec_star_tracker"]
+	path = thirdparty/arcsec_star_tracker
+	url = https://egit.irs.uni-stuttgart.de/eive/arcsec_star_tracker.git
diff --git a/thirdparty/arcsec_star_tracker b/thirdparty/arcsec_star_tracker
new file mode 160000
index 00000000..93e93965
--- /dev/null
+++ b/thirdparty/arcsec_star_tracker
@@ -0,0 +1 @@
+Subproject commit 93e93965e2c6405170b62c523dea1990db02d2ad