From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 8 Jul 2015 20:46:52 -0400
Subject: Initial commit

---
 noao/obsutil/src/sptime/lib/abjohnson | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 noao/obsutil/src/sptime/lib/abjohnson

(limited to 'noao/obsutil/src/sptime/lib/abjohnson')

diff --git a/noao/obsutil/src/sptime/lib/abjohnson b/noao/obsutil/src/sptime/lib/abjohnson
new file mode 100644
index 00000000..b2bd6d2a
--- /dev/null
+++ b/noao/obsutil/src/sptime/lib/abjohnson
@@ -0,0 +1,17 @@
+# AB zeropoints.
+# Values are from Astrophysical Quantities converted from
+# log f (in W/cm^2/micron) to AB = -2.5 * log (F_lambda) - 5 log (lambda) - 2.4
+# where lambda is in Angstroms and F_lambda is in ergs/s/cm^2/A.  The
+# values are for U, B, V, R, I, J, H, Ks, K, L, L', M.
+
+ 3650  0.714
+ 4400 -0.167
+ 5500 -0.052
+ 7000  0.275
+ 9000  0.529
+12150  0.878
+16540  1.356
+21570  1.857
+35470  2.803
+37610  2.921
+47690  3.397
-- 
cgit