SQM-L measurements

SQM-L sky brightness measurements

Since November 2010 we have performed sky brightness measurements with a SQM-L during most of our comet observing sessions.
Usually a first series was done near the start of a session, and another one near the end, but during short sessions only a single series was made.
The results are given in the table below. Each number is the average of at least 3 measurements, rounded to 1 decimal place.
Measurements were made near the zenith, but when denser parts of the Milky Way were overhead the SQM-L was pointed
slightly lower, but never below 70° altitude.
Factors that might have affected the sky quality are mentioned in the notes. Otherwise it can be assumed that measurements
were made when skies were clear without interfering clouds, moonlight or twilight.

Date (yyyy-mm-dd.dd) Magnitude Site Notes

2024-11-03.901 21.2 Burlage -

2024-11-03.815 21.0 Burlage -

2024-10-24.818 21.0 Burlage -

2024-10-05.785 20.9 Westerwijtwerd -

2024-09-05.840 20.8 Westerwijtwerd Sun 16.8° below horizon.

2024-08-31.948 21.3 Burlage -

2024-08-31.892 21.2 Burlage -

2024-08-11.976 21.4 Burlage -

2024-08-05.975 21.25 Burlage -

2024-05-11.965 21.4 Burlage 3.8 day old Moon at 4.5° altitude behind building and trees.

2024-03-09.840 21.1 Burlage -

2024-01-11.003 20.9 Sint Annen cold night with some snow on the ground.

2023-06-12.983 20.6 Westerwijtwerd grey night; Sun 13.5° below horizon.

2023-06-08.976 20.7 Westerwijtwerd grey night; Sun 13.8° below horizon.

2023-05-19.970 21.2 Westerwijtwerd -

2023-01-17.953 21.1 Sint Annen -

2022-09-24.819 20.9 Westerwijtwerd -

2022-09-01.944 21.3 Burlage -

2022-09-21.852 21.1 Burlage -

2022-09-01.898 21.3 Burlage -

2022-08-25.886 21.4 Burlage -

2022-08-03.963 21.4 Burlage -

2022-08-02.909 21.1 Garnwerd twilight; Sun 15.2° below horizon.

2022-05-24.965 21.1 Sint Annen grey night; Sun 15.6° below horizon.

2022-04-23.972 21.5 Burlage -

2022-04-19.907 21.5 Burlage -

2022-04-18.878 21.1 Westerwijtwerd -

2022-03-09.161 21.3 Westerwijtwerd -

2022-02-27.878 21.2 Burlage -

2022-02-25.837 21.2 Lauwersoog -

2022-01-05.839 21.3 Lauwersoog -

2021-12-25.842 21.1 Burlage -

2021-10-31.977 21.1 Sint Annen -

2021-10-09.967 21.1 Westerwijtwerd -

2021-04-17.092 21.2 Westerwijtwerd -

2021-02-13.830 20.8 Burlage ground covered in snow; very cold conditions!

2020-09-19.828 21.1 Burlage -

2020-05-26.980 21.1 Sint Annen grey night; Sun 15.4° below horizon.

2020-04-16.893 21.2 Westerwijtwerd -

2020-04-11.879 21.1 Sint Annen -

2020-03-26.932 21.6 Burlage -

2020-03-26.839 21.2 Burlage -

2020-03-21.922 21.4 Burlage -

2020-03-21.841 21.2 Burlage -

2020-02-05.185 21.3 Sint Annen -

2020-01-15.864 21.0 Burlage -

2019-12-30.853 21.1 Burlage -

2019-11-19.882 21.0 Burlage -

2019-10-31.934 21.2 Burlage -

2019-10-29.928 21.0 Burlage -

2019-10-06.940 21.2 Burlage -

2019-09-23.855 21.1 Lauwersoog -

2019-09-21.817 21.1 Lauwersoog -

2019-08-25.936 21.3 Burlage -

2019-05-28.984 21.1 Sint Annen grey night; Sun 15.1° below horizon.

2019-04-06.872 21.2 Burlage -

2019-04-01.894 21.4 Burlage -

2019-04-01.858 21.3 Burlage -

2019-03-24.828 21.0 Sint Annen -

2019-02-27.951 21.4 Burlage -

2019-02-27.872 21.0 Burlage -

2019-02-15.154 21.4 Burlage -

2019-02-03.831 21.0 Burlage -

2019-01-21.208 21.2 Burlage During total lunar aclipse

2018-11-17.203 21.0 Sint Annen -

2018-11-03.984 20.9 Sint Annen -

2018-10-05.795 21.1 Lauwersoog -

2018-09-13.096 21.1 Sint Annen -

2018-09-02.872 21.0 Sint Annen -

2018-08-05.906 21.2 Lauwersoog Sun 15.5° below horizon.

2018-04-22.054 21.5 Burlage -

2018-04-19.076 21.6 Burlage -

2018-04-18.902 21.4 Burlage -

2018-04-07.935 21.4 Burlage -

2018-04-05.870 21.2 Burlage -

2018-03-18.879 21.2 Burlage -

2018-03-14.918 21.3 Burlage -

2018-03-14.889 21.1 Burlage -

2018-02-25.180 21.3 Burlage -

2018-02-25.133 21.2 Burlage -

2018-02-17.882 20.9 Burlage becoming foggy.

2018-02-13.788 21.2 Lauwersoog -

2018-02-12.970 21.4 Burlage -

2018-02-12.925 21.3 Burlage -

2018-02-07.945 21.3 Burlage -

2018-02-07.905 21.2 Burlage -

2018-02-06.887 21.0 Sint Annen -

2018-02-06.769 21.1 Lauwersoog -

2018-01-14.970 21.3 Burlage -

2018-01-14.879 21.0 Burlage -

2017-11-25.188 21.1 Sint Annen -

2017-10-21.919 20.9 Sint Annen -

2017-09-23.941 20.9 Sint Annen -

2017-09-16.950 21.1 Burlage -

2017-08-31.985 21.2 Burlage -

2017-05-27.967 21.2 Burlage grey night; Sun 15.4° below horizon.

2017-05-20.983 21.4 Burlage Sun 16.7° below horizon.

2017-05-20.941 21.3 Burlage Sun 15.9° below horizon.

2017-05-14.929 21.4 Burlage Sun 16.6° below horizon.

2017-04-29.950 21.2 Sint Annen -

2017-04-19.890 20.9 Sint Annen -

2017-04-15.870 21.1 Sint Annen -

2017-03-27.895 21.3 Burlage -

2017-03-27.855 21.2 Burlage -

2017-03-23.884 21.0 Sint Annen -

2017-03-21.916 21.3 Burlage -

2017-03-21.860 21.1 Burlage -

2017-02-24.926 21.2 Burlage -

2017-02-24.881 21.0 Burlage -

2017-02-14.791 21.0 Lauwersoog -

2017-02-13.787 21.1 Lauwersoog -

2017-02-04.026 21.1 Sint Annen -

2017-01-26.760 21.0 Lauwersoog -

2017-01-21.749 21.1 Lauwersoog -

2017-01-19.748 20.9 Lauwersoog -

2017-01-16.745 21.0 Lauwersoog ground covered in snow.

2016-12-30.238 21.1 Sint Annen -

2016-12-06.184 20.9 Sint Annen -

2016-12-05.194 20.9 Sint Annen -

2016-11-28.207 21.2 Burlage -

2016-11-28.128 21.4 Burlage -

2016-11-27.844 21.0 Burlage -

2016-10-05.108 21.2 Burlage -

2016-10-04.894 21.0 Burlage -

2016-10-04.788 20.8 Burlage -

2016-09-13.069 21.4 Burlage -

2016-09-08.070 21.3 Burlage -

2016-09-07.871 21.1 Burlage -

2016-08-31.013 21.3 Burlage -

2016-08-30.883 21.1 Burlage -

2016-08-12.983 21.1 Burlage -

2016-08-06.946 21.1 Burlage -

2016-07-31.936 21.3 Burlage -

2016-05-09.023 21.5 Burlage -

2016-05-08.917 21.4 Burlage -

2016-05-04.937 21.0 Sint Annen -

2016-05-03.929 21.2 Sint Annen -

2016-05-01.961 21.6 Burlage -

2016-05-01.885 21.2 Burlage Sun 15.9° below horizon.

2016-04-30.955 21.1 Sint Annen -

2016-04-28.929 21.1 Sint Annen -

2016-04-11.001 21.7 Burlage -

2016-04-10.922 21.5 Burlage 16.6% illuminated Moon 1.4° over W. horizon.

2016-04-01.069 21.2 Sint Annen -

2016-03-17.136 21.2 Sint Annen -

2016-03-03.935 21.2 Sint Annen -

2016-02-29.899 20.9 Sint Annen -

2016-02-11.939 21.1 Sint Annen -

2016-02-11.019 21.2 Sint Annen -

2016-02-07.969 21.1 Sint Annen -

2015-12-31.881 20.9 Burlage -

2015-11-07.935 20.8 Sint Annen -

2015-10-12.071 21.3 Burlage -

2015-10-11.802 21.0 Burlage -

2015-10-10.807 20.9 Sint Annen -

2015-07-19.970 20.9 Sint Annen Sun 15.8° below horizon.

2015-04-19.900 21.3 Burlage -

2015-04-17.886 20.9 Sint Annen -

2015-04-16.892 21.0 Sint Annen -

2015-04-15.089 21.2 Sint Annen -

2015-02-18.789 20.7 Sint Annen slightly hazy conditions.

2014-11-10.753 20.6 Sint Annen -

2014-07-23.983 20.8 Sint Annen Sun 16.7° below horizon.

2014-05-19.963 21.4 Burlage Sun 16.9° below horizon.

2014-05-18.947 21.0 Sint Annen Sun 16.3° below horizon.

2014-05-02.946 21.1 Sint Annen -

2014-04-20.875 21.2 Lauwersoog -

2014-03-12.165 21.1 Sint Annen -

2014-03-10.150 21.1 Sint Annen -

2014-03-08.162 21.1 Sint Annen -

2014-03-06.134 21.4 Burlage -

2014-03-05.947 21.3 Burlage -

2014-02-03.165 21.3 Burlage -

2014-02-02.928 21.1 Burlage -

2014-01-28.896 21.0 Burlage ground covered in snow.

2014-01-28.822 20.8 Burlage ground covered in snow.

2013-11-11.160 21.1 Burlage -

2013-10-01.125 21.2 Burlage 15% illuminated Moon 13° over E. horizon.

2013-09-30.844 21.1 Burlage -

2013-09-28.924 21.2 Burlage -

2013-09-28.812 21.0 Burlage -

2013-08-03.926 21.2 Burlage -

2013-07-17.985 20.7 Sint Annen grey night; Sun 15.7° below horizon.

2013-07-04.981 20.5 Sint Annen grey night; Sun 14.0° below horizon.

2013-06-04.980 20.5 Sint Annen grey night; Sun 14.2° below horizon.

2013-06-01.980 20.8 Lauwersoog grey night; Sun 14.5° below horizon.

2013-05-09.918 21.0 Sint Annen -

2013-05-05.898 21.3 Burlage -

2013-05-04.940 21.0 Sint Annen -

2013-04-30.967 21.4 Burlage -

2013-04-29.904 21.1 Sint Annen -

2013-04-28.897 21.0 Sint Annen -

2013-04-06.856 21.3 Burlage -

2013-04-02.847 20.9 Sint Annen -

2013-04-01.841 21.1 Sint Annen -

2013-03-13.006 21.2 Sint Annen -

2013-03-12.822 20.8 Sint Annen -

2013-03-04.797 20.7 Sint Annen -

2013-03-03.808 20.9 Sint Annen -

2013-01-03.883 20.9 Sint Annen -

2012-12-07.953 21.0 Burlage ground covered in (thin) snow.

2012-12-07.845 20.9 Burlage ground covered in (thin) snow.

2012-10-12.915 20.8 Sint Annen -

2012-10-11.905 20.8 Sint Annen -

2012-10-10.828 20.7 Sint Annen -

2012-10-07.876 21.0 Burlage -

2012-09-19.898 21.1 Burlage -

2012-09-09.924 21.2 Burlage -

2012-09-09.849 21.0 Burlage -

2012-07-23.972 21.1 Burlage Sun 17° below horizon.

2012-05-26.978 21.0 Burlage Sun 15.6° below horizon.

2012-05-24.993 21.3 Burlage Sun 15.8° below horizon.

2012-05-16.977 21.5 Burlage -

2012-05-12.951 21.4 Burlage -

2012-04-26.915 20.9 Sint Annen 5.6d Moon low in west

2012-04-24.931 21.0 Sint Annen -

2012-04-16.002 21.6 Burlage -

2012-04-15.877 21.3 Burlage -

2012-04-13.904 21.0 Sint Annen -

2012-04-12.905 21.1 Sint Annen -

2012-03-26.947 21.0 Sint Annen -

2012-03-22.990 21.4 Burlage -

2012-03-22.875 21.0 Burlage -

2012-03-19.938 21.2 Burlage -

2012-02-24.885 20.9 Sint Annen -

2011-11-27.98 20.9 Burlage -

2011-11-27.851 20.8 Burlage -

2011-10-29.743 20.7 Sint Annen Sun 15.5° below horizon.

2011-10-24.104 21.1 Burlage -

2011-10-23.840 20.9 Burlage -

2011-10-22.854 21.0 Burlage -

2011-10-09.166 20.8 Sint Annen -

2011-10-01.835 21.0 Burlage -

2011-09-30.121 21.3 Burlage -

2011-09-29.924 21.2 Burlage -

2011-09-18.824 20.8 Sint Annen close to moonrise.

2011-09-03.878 21.1 Burlage -

2011-09-01.879 20.9 Sint Annen -

2011-08-31.865 20.9 Sint Annen -

2011-07-06.983 20.6 Sint Annen grey night; Sun 14.1° below horizon.

2011-06-02.996 20.9 Burlage grey night; Sun 14.5° below horizon.

2011-05-02.00 21.7 Burlage -

2011-05-01.92 21.6 Burlage -

2011-04-02.12 21.1 Sint Annen haze near horizon.

2011-03-08.02 21.6 Burlage -

2011-03-07.91 21.4 Burlage -

2011-03-07.84 21.1 Burlage 3.0d Moon 4° over W. horizon.

2011-01-29.02 21.4 Burlage -

2011-01-28.93 21.3 Burlage -

2011-01-09.98 21.2 Burlage -

2011-01-09.92 21.2 Burlage -

2011-01-03.02 21.1 Burlage ground covered in snow.

2011-01-02.98 21.2 Burlage ground covered in snow.

2010-12-13.00 21.0 Burlage -

2010-12-12.95 20.9 Burlage -

2010-11-07.90 20.9 Burlage -

2010-11-07.79 20.9 Burlage -

Date (yyyy-mm-dd.dd)	Magnitude	Site	Notes
2024-11-03.901	21.2	Burlage	-
2024-11-03.815	21.0	Burlage	-
2024-10-24.818	21.0	Burlage	-
2024-10-05.785	20.9	Westerwijtwerd	-
2024-09-05.840	20.8	Westerwijtwerd	Sun 16.8° below horizon.
2024-08-31.948	21.3	Burlage	-
2024-08-31.892	21.2	Burlage	-
2024-08-11.976	21.4	Burlage	-
2024-08-05.975	21.25	Burlage	-
2024-05-11.965	21.4	Burlage	3.8 day old Moon at 4.5° altitude behind building and trees.
2024-03-09.840	21.1	Burlage	-
2024-01-11.003	20.9	Sint Annen	cold night with some snow on the ground.
2023-06-12.983	20.6	Westerwijtwerd	grey night; Sun 13.5° below horizon.
2023-06-08.976	20.7	Westerwijtwerd	grey night; Sun 13.8° below horizon.
2023-05-19.970	21.2	Westerwijtwerd	-
2023-01-17.953	21.1	Sint Annen	-
2022-09-24.819	20.9	Westerwijtwerd	-
2022-09-01.944	21.3	Burlage	-
2022-09-21.852	21.1	Burlage	-
2022-09-01.898	21.3	Burlage	-
2022-08-25.886	21.4	Burlage	-
2022-08-03.963	21.4	Burlage	-
2022-08-02.909	21.1	Garnwerd	twilight; Sun 15.2° below horizon.
2022-05-24.965	21.1	Sint Annen	grey night; Sun 15.6° below horizon.
2022-04-23.972	21.5	Burlage	-
2022-04-19.907	21.5	Burlage	-
2022-04-18.878	21.1	Westerwijtwerd	-
2022-03-09.161	21.3	Westerwijtwerd	-
2022-02-27.878	21.2	Burlage	-
2022-02-25.837	21.2	Lauwersoog	-
2022-01-05.839	21.3	Lauwersoog	-
2021-12-25.842	21.1	Burlage	-
2021-10-31.977	21.1	Sint Annen	-
2021-10-09.967	21.1	Westerwijtwerd	-
2021-04-17.092	21.2	Westerwijtwerd	-
2021-02-13.830	20.8	Burlage	ground covered in snow; very cold conditions!
2020-09-19.828	21.1	Burlage	-
2020-05-26.980	21.1	Sint Annen	grey night; Sun 15.4° below horizon.
2020-04-16.893	21.2	Westerwijtwerd	-
2020-04-11.879	21.1	Sint Annen	-
2020-03-26.932	21.6	Burlage	-
2020-03-26.839	21.2	Burlage	-
2020-03-21.922	21.4	Burlage	-
2020-03-21.841	21.2	Burlage	-
2020-02-05.185	21.3	Sint Annen	-
2020-01-15.864	21.0	Burlage	-
2019-12-30.853	21.1	Burlage	-
2019-11-19.882	21.0	Burlage	-
2019-10-31.934	21.2	Burlage	-
2019-10-29.928	21.0	Burlage	-
2019-10-06.940	21.2	Burlage	-
2019-09-23.855	21.1	Lauwersoog	-
2019-09-21.817	21.1	Lauwersoog	-
2019-08-25.936	21.3	Burlage	-
2019-05-28.984	21.1	Sint Annen	grey night; Sun 15.1° below horizon.
2019-04-06.872	21.2	Burlage	-
2019-04-01.894	21.4	Burlage	-
2019-04-01.858	21.3	Burlage	-
2019-03-24.828	21.0	Sint Annen	-
2019-02-27.951	21.4	Burlage	-
2019-02-27.872	21.0	Burlage	-
2019-02-15.154	21.4	Burlage	-
2019-02-03.831	21.0	Burlage	-
2019-01-21.208	21.2	Burlage	During total lunar aclipse
2018-11-17.203	21.0	Sint Annen	-
2018-11-03.984	20.9	Sint Annen	-
2018-10-05.795	21.1	Lauwersoog	-
2018-09-13.096	21.1	Sint Annen	-
2018-09-02.872	21.0	Sint Annen	-
2018-08-05.906	21.2	Lauwersoog	Sun 15.5° below horizon.
2018-04-22.054	21.5	Burlage	-
2018-04-19.076	21.6	Burlage	-
2018-04-18.902	21.4	Burlage	-
2018-04-07.935	21.4	Burlage	-
2018-04-05.870	21.2	Burlage	-
2018-03-18.879	21.2	Burlage	-
2018-03-14.918	21.3	Burlage	-
2018-03-14.889	21.1	Burlage	-
2018-02-25.180	21.3	Burlage	-
2018-02-25.133	21.2	Burlage	-
2018-02-17.882	20.9	Burlage	becoming foggy.
2018-02-13.788	21.2	Lauwersoog	-
2018-02-12.970	21.4	Burlage	-
2018-02-12.925	21.3	Burlage	-
2018-02-07.945	21.3	Burlage	-
2018-02-07.905	21.2	Burlage	-
2018-02-06.887	21.0	Sint Annen	-
2018-02-06.769	21.1	Lauwersoog	-
2018-01-14.970	21.3	Burlage	-
2018-01-14.879	21.0	Burlage	-
2017-11-25.188	21.1	Sint Annen	-
2017-10-21.919	20.9	Sint Annen	-
2017-09-23.941	20.9	Sint Annen	-
2017-09-16.950	21.1	Burlage	-
2017-08-31.985	21.2	Burlage	-
2017-05-27.967	21.2	Burlage	grey night; Sun 15.4° below horizon.
2017-05-20.983	21.4	Burlage	Sun 16.7° below horizon.
2017-05-20.941	21.3	Burlage	Sun 15.9° below horizon.
2017-05-14.929	21.4	Burlage	Sun 16.6° below horizon.
2017-04-29.950	21.2	Sint Annen	-
2017-04-19.890	20.9	Sint Annen	-
2017-04-15.870	21.1	Sint Annen	-
2017-03-27.895	21.3	Burlage	-
2017-03-27.855	21.2	Burlage	-
2017-03-23.884	21.0	Sint Annen	-
2017-03-21.916	21.3	Burlage	-
2017-03-21.860	21.1	Burlage	-
2017-02-24.926	21.2	Burlage	-
2017-02-24.881	21.0	Burlage	-
2017-02-14.791	21.0	Lauwersoog	-
2017-02-13.787	21.1	Lauwersoog	-
2017-02-04.026	21.1	Sint Annen	-
2017-01-26.760	21.0	Lauwersoog	-
2017-01-21.749	21.1	Lauwersoog	-
2017-01-19.748	20.9	Lauwersoog	-
2017-01-16.745	21.0	Lauwersoog	ground covered in snow.
2016-12-30.238	21.1	Sint Annen	-
2016-12-06.184	20.9	Sint Annen	-
2016-12-05.194	20.9	Sint Annen	-
2016-11-28.207	21.2	Burlage	-
2016-11-28.128	21.4	Burlage	-
2016-11-27.844	21.0	Burlage	-
2016-10-05.108	21.2	Burlage	-
2016-10-04.894	21.0	Burlage	-
2016-10-04.788	20.8	Burlage	-
2016-09-13.069	21.4	Burlage	-
2016-09-08.070	21.3	Burlage	-
2016-09-07.871	21.1	Burlage	-
2016-08-31.013	21.3	Burlage	-
2016-08-30.883	21.1	Burlage	-
2016-08-12.983	21.1	Burlage	-
2016-08-06.946	21.1	Burlage	-
2016-07-31.936	21.3	Burlage	-
2016-05-09.023	21.5	Burlage	-
2016-05-08.917	21.4	Burlage	-
2016-05-04.937	21.0	Sint Annen	-
2016-05-03.929	21.2	Sint Annen	-
2016-05-01.961	21.6	Burlage	-
2016-05-01.885	21.2	Burlage	Sun 15.9° below horizon.
2016-04-30.955	21.1	Sint Annen	-
2016-04-28.929	21.1	Sint Annen	-
2016-04-11.001	21.7	Burlage	-
2016-04-10.922	21.5	Burlage	16.6% illuminated Moon 1.4° over W. horizon.
2016-04-01.069	21.2	Sint Annen	-
2016-03-17.136	21.2	Sint Annen	-
2016-03-03.935	21.2	Sint Annen	-
2016-02-29.899	20.9	Sint Annen	-
2016-02-11.939	21.1	Sint Annen	-
2016-02-11.019	21.2	Sint Annen	-
2016-02-07.969	21.1	Sint Annen	-
2015-12-31.881	20.9	Burlage	-
2015-11-07.935	20.8	Sint Annen	-
2015-10-12.071	21.3	Burlage	-
2015-10-11.802	21.0	Burlage	-
2015-10-10.807	20.9	Sint Annen	-
2015-07-19.970	20.9	Sint Annen	Sun 15.8° below horizon.
2015-04-19.900	21.3	Burlage	-
2015-04-17.886	20.9	Sint Annen	-
2015-04-16.892	21.0	Sint Annen	-
2015-04-15.089	21.2	Sint Annen	-
2015-02-18.789	20.7	Sint Annen	slightly hazy conditions.
2014-11-10.753	20.6	Sint Annen	-
2014-07-23.983	20.8	Sint Annen	Sun 16.7° below horizon.
2014-05-19.963	21.4	Burlage	Sun 16.9° below horizon.
2014-05-18.947	21.0	Sint Annen	Sun 16.3° below horizon.
2014-05-02.946	21.1	Sint Annen	-
2014-04-20.875	21.2	Lauwersoog	-
2014-03-12.165	21.1	Sint Annen	-
2014-03-10.150	21.1	Sint Annen	-
2014-03-08.162	21.1	Sint Annen	-
2014-03-06.134	21.4	Burlage	-
2014-03-05.947	21.3	Burlage	-
2014-02-03.165	21.3	Burlage	-
2014-02-02.928	21.1	Burlage	-
2014-01-28.896	21.0	Burlage	ground covered in snow.
2014-01-28.822	20.8	Burlage	ground covered in snow.
2013-11-11.160	21.1	Burlage	-
2013-10-01.125	21.2	Burlage	15% illuminated Moon 13° over E. horizon.
2013-09-30.844	21.1	Burlage	-
2013-09-28.924	21.2	Burlage	-
2013-09-28.812	21.0	Burlage	-
2013-08-03.926	21.2	Burlage	-
2013-07-17.985	20.7	Sint Annen	grey night; Sun 15.7° below horizon.
2013-07-04.981	20.5	Sint Annen	grey night; Sun 14.0° below horizon.
2013-06-04.980	20.5	Sint Annen	grey night; Sun 14.2° below horizon.
2013-06-01.980	20.8	Lauwersoog	grey night; Sun 14.5° below horizon.
2013-05-09.918	21.0	Sint Annen	-
2013-05-05.898	21.3	Burlage	-
2013-05-04.940	21.0	Sint Annen	-
2013-04-30.967	21.4	Burlage	-
2013-04-29.904	21.1	Sint Annen	-
2013-04-28.897	21.0	Sint Annen	-
2013-04-06.856	21.3	Burlage	-
2013-04-02.847	20.9	Sint Annen	-
2013-04-01.841	21.1	Sint Annen	-
2013-03-13.006	21.2	Sint Annen	-
2013-03-12.822	20.8	Sint Annen	-
2013-03-04.797	20.7	Sint Annen	-
2013-03-03.808	20.9	Sint Annen	-
2013-01-03.883	20.9	Sint Annen	-
2012-12-07.953	21.0	Burlage	ground covered in (thin) snow.
2012-12-07.845	20.9	Burlage	ground covered in (thin) snow.
2012-10-12.915	20.8	Sint Annen	-
2012-10-11.905	20.8	Sint Annen	-
2012-10-10.828	20.7	Sint Annen	-
2012-10-07.876	21.0	Burlage	-
2012-09-19.898	21.1	Burlage	-
2012-09-09.924	21.2	Burlage	-
2012-09-09.849	21.0	Burlage	-
2012-07-23.972	21.1	Burlage	Sun 17° below horizon.
2012-05-26.978	21.0	Burlage	Sun 15.6° below horizon.
2012-05-24.993	21.3	Burlage	Sun 15.8° below horizon.
2012-05-16.977	21.5	Burlage	-
2012-05-12.951	21.4	Burlage	-
2012-04-26.915	20.9	Sint Annen	5.6d Moon low in west
2012-04-24.931	21.0	Sint Annen	-
2012-04-16.002	21.6	Burlage	-
2012-04-15.877	21.3	Burlage	-
2012-04-13.904	21.0	Sint Annen	-
2012-04-12.905	21.1	Sint Annen	-
2012-03-26.947	21.0	Sint Annen	-
2012-03-22.990	21.4	Burlage	-
2012-03-22.875	21.0	Burlage	-
2012-03-19.938	21.2	Burlage	-
2012-02-24.885	20.9	Sint Annen	-
2011-11-27.98	20.9	Burlage	-
2011-11-27.851	20.8	Burlage	-
2011-10-29.743	20.7	Sint Annen	Sun 15.5° below horizon.
2011-10-24.104	21.1	Burlage	-
2011-10-23.840	20.9	Burlage	-
2011-10-22.854	21.0	Burlage	-
2011-10-09.166	20.8	Sint Annen	-
2011-10-01.835	21.0	Burlage	-
2011-09-30.121	21.3	Burlage	-
2011-09-29.924	21.2	Burlage	-
2011-09-18.824	20.8	Sint Annen	close to moonrise.
2011-09-03.878	21.1	Burlage	-
2011-09-01.879	20.9	Sint Annen	-
2011-08-31.865	20.9	Sint Annen	-
2011-07-06.983	20.6	Sint Annen	grey night; Sun 14.1° below horizon.
2011-06-02.996	20.9	Burlage	grey night; Sun 14.5° below horizon.
2011-05-02.00	21.7	Burlage	-
2011-05-01.92	21.6	Burlage	-
2011-04-02.12	21.1	Sint Annen	haze near horizon.
2011-03-08.02	21.6	Burlage	-
2011-03-07.91	21.4	Burlage	-
2011-03-07.84	21.1	Burlage	3.0d Moon 4° over W. horizon.
2011-01-29.02	21.4	Burlage	-
2011-01-28.93	21.3	Burlage	-
2011-01-09.98	21.2	Burlage	-
2011-01-09.92	21.2	Burlage	-
2011-01-03.02	21.1	Burlage	ground covered in snow.
2011-01-02.98	21.2	Burlage	ground covered in snow.
2010-12-13.00	21.0	Burlage	-
2010-12-12.95	20.9	Burlage	-
2010-11-07.90	20.9	Burlage	-
2010-11-07.79	20.9	Burlage	-