Southbound Echosun

The noon Sun stands where it stood months earlier, heading south now.

At clock noon the Sun is in the same spot it occupied on Apr 12, but now it is moving south.

The name

Echosun: one of the two days a year when the noon Sun returns to a spot it held months before, or will hold months later, where the analemma crosses itself. Northbound and Southbound give the direction.

Precision

Found where the curve crosses itself. Good to about a day.

Next: Mon, Aug 30, 2027, around 13:51 UTC

See it on the figure Add it to your calendar

Every year

Between 1900 and 2100 it comes as early as August 29 at 10:00 UTC (2092) and as late as August 31 at 09:14 UTC (1903).Dates wobble through each four-year leap cycle and creep earlier across a century, until a skipped leap day, as in 1900 and 2100, sets them back.

Year	Date	UTC
1900	Thu, Aug 30	≈ 14:34	Declination +9.04°, 35 s late
1901	Fri, Aug 30	≈ 20:17	Declination +9.05°, 34 s late
1902	Sun, Aug 31	≈ 02:33	Declination +9.04°, 35 s late
1903	Mon, Aug 31	≈ 09:14	Declination +9.03°, 35 s late
1904	Tue, Aug 30	≈ 13:46	Declination +9.05°, 35 s late
1905	Wed, Aug 30	≈ 20:38	Declination +9.03°, 35 s late
1906	Fri, Aug 31	≈ 03:47	Declination +9.01°, 34 s late
1907	Sat, Aug 31	≈ 08:06	Declination +9.03°, 35 s late
1908	Sun, Aug 30	≈ 14:05	Declination +9.03°, 35 s late
1909	Mon, Aug 30	≈ 19:58	Declination +9.03°, 34 s late
1910	Wed, Aug 31	≈ 02:08	Declination +9.03°, 35 s late
1911	Thu, Aug 31	≈ 08:25	Declination +9.02°, 35 s late
1912	Fri, Aug 30	≈ 12:47	Declination +9.04°, 35 s late
1913	Sat, Aug 30	≈ 18:54	Declination +9.03°, 36 s late
1914	Mon, Aug 31	≈ 01:48	Declination +9.02°, 35 s late
1915	Tue, Aug 31	≈ 06:25	Declination +9.03°, 36 s late
1916	Wed, Aug 30	≈ 12:27	Declination +9.03°, 36 s late
1917	Thu, Aug 30	≈ 19:14	Declination +9.02°, 35 s late
1918	Sat, Aug 31	≈ 01:24	Declination +9.01°, 35 s late
1919	Sun, Aug 31	≈ 07:27	Declination +9.00°, 35 s late
1920	Mon, Aug 30	≈ 11:56	Declination +9.03°, 35 s late
1921	Tue, Aug 30	≈ 17:36	Declination +9.03°, 35 s late
1922	Thu, Aug 31	≈ 00:24	Declination +9.01°, 35 s late
1923	Fri, Aug 31	≈ 04:51	Declination +9.03°, 36 s late
1924	Sat, Aug 30	≈ 10:18	Declination +9.04°, 36 s late
1925	Sun, Aug 30	≈ 17:05	Declination +9.03°, 36 s late
1926	Mon, Aug 30	≈ 23:15	Declination +9.02°, 36 s late
1927	Wed, Aug 31	≈ 05:38	Declination +9.01°, 36 s late
1928	Thu, Aug 30	≈ 11:10	Declination +9.02°, 36 s late
1929	Fri, Aug 30	≈ 17:33	Declination +9.01°, 36 s late
1930	Sun, Aug 31	≈ 00:33	Declination +8.99°, 36 s late
1931	Mon, Aug 31	≈ 05:08	Declination +9.01°, 36 s late
1932	Tue, Aug 30	≈ 10:06	Declination +9.02°, 36 s late
1933	Wed, Aug 30	≈ 16:25	Declination +9.01°, 36 s late
1934	Thu, Aug 30	≈ 22:20	Declination +9.01°, 36 s late
1935	Sat, Aug 31	≈ 03:47	Declination +9.01°, 36 s late
1936	Sun, Aug 30	≈ 08:58	Declination +9.02°, 36 s late
1937	Mon, Aug 30	≈ 14:45	Declination +9.02°, 37 s late
1938	Tue, Aug 30	≈ 21:31	Declination +9.01°, 37 s late
1939	Thu, Aug 31	≈ 02:47	Declination +9.02°, 37 s late
1940	Fri, Aug 30	≈ 08:26	Declination +9.02°, 37 s late
1941	Sat, Aug 30	≈ 15:37	Declination +9.00°, 36 s late
1942	Sun, Aug 30	≈ 22:11	Declination +8.98°, 36 s late
1943	Tue, Aug 31	≈ 03:33	Declination +8.99°, 37 s late
1944	Wed, Aug 30	≈ 08:54	Declination +9.00°, 36 s late
1945	Thu, Aug 30	≈ 14:42	Declination +9.00°, 36 s late
1946	Fri, Aug 30	≈ 21:03	Declination +8.99°, 36 s late
1947	Sun, Aug 31	≈ 02:07	Declination +9.01°, 37 s late
1948	Mon, Aug 30	≈ 07:00	Declination +9.02°, 37 s late
1949	Tue, Aug 30	≈ 13:33	Declination +9.01°, 37 s late
1950	Wed, Aug 30	≈ 20:05	Declination +8.99°, 37 s late
1951	Fri, Aug 31	≈ 01:27	Declination +9.00°, 37 s late
1952	Sat, Aug 30	≈ 07:27	Declination +9.00°, 37 s late
1953	Sun, Aug 30	≈ 13:54	Declination +8.99°, 37 s late
1954	Mon, Aug 30	≈ 20:02	Declination +8.98°, 37 s late
1955	Wed, Aug 31	≈ 01:18	Declination +8.99°, 37 s late
1956	Thu, Aug 30	≈ 05:58	Declination +9.01°, 37 s late
1957	Fri, Aug 30	≈ 12:24	Declination +9.00°, 37 s late
1958	Sat, Aug 30	≈ 19:00	Declination +8.98°, 37 s late
1959	Sun, Aug 30	≈ 23:50	Declination +9.00°, 37 s late
1960	Tue, Aug 30	≈ 05:31	Declination +9.00°, 38 s late
1961	Wed, Aug 30	≈ 11:53	Declination +8.99°, 38 s late
1962	Thu, Aug 30	≈ 18:00	Declination +8.99°, 38 s late
1963	Fri, Aug 30	≈ 23:54	Declination +8.99°, 38 s late
1964	Sun, Aug 30	≈ 05:29	Declination +8.99°, 37 s late
1965	Mon, Aug 30	≈ 12:08	Declination +8.98°, 37 s late
1966	Tue, Aug 30	≈ 19:02	Declination +8.96°, 37 s late
1967	Wed, Aug 30	≈ 23:38	Declination +8.98°, 37 s late
1968	Fri, Aug 30	≈ 04:54	Declination +8.99°, 38 s late
1969	Sat, Aug 30	≈ 11:16	Declination +8.98°, 37 s late
1970	Sun, Aug 30	≈ 16:43	Declination +8.99°, 38 s late
1971	Mon, Aug 30	≈ 22:07	Declination +8.99°, 38 s late
1972	Wed, Aug 30	≈ 03:26	Declination +9.00°, 38 s late
1973	Thu, Aug 30	≈ 09:25	Declination +8.99°, 39 s late
1974	Fri, Aug 30	≈ 16:47	Declination +8.97°, 39 s late
1975	Sat, Aug 30	≈ 21:53	Declination +8.98°, 38 s late
1976	Mon, Aug 30	≈ 03:48	Declination +8.98°, 38 s late
1977	Tue, Aug 30	≈ 11:03	Declination +8.96°, 38 s late
1978	Wed, Aug 30	≈ 16:25	Declination +8.96°, 38 s late
1979	Thu, Aug 30	≈ 21:47	Declination +8.97°, 38 s late
1980	Sat, Aug 30	≈ 02:58	Declination +8.98°, 38 s late
1981	Sun, Aug 30	≈ 08:37	Declination +8.99°, 38 s late
1982	Mon, Aug 30	≈ 15:43	Declination +8.96°, 38 s late
1983	Tue, Aug 30	≈ 20:25	Declination +8.98°, 38 s late
1984	Thu, Aug 30	≈ 01:37	Declination +8.99°, 39 s late
1985	Fri, Aug 30	≈ 08:48	Declination +8.97°, 39 s late
1986	Sat, Aug 30	≈ 14:15	Declination +8.98°, 39 s late
1987	Sun, Aug 30	≈ 20:04	Declination +8.97°, 39 s late
1988	Tue, Aug 30	≈ 02:17	Declination +8.97°, 38 s late
1989	Wed, Aug 30	≈ 08:14	Declination +8.96°, 38 s late
1990	Thu, Aug 30	≈ 15:25	Declination +8.94°, 39 s late
1991	Fri, Aug 30	≈ 20:09	Declination +8.96°, 39 s late
1992	Sun, Aug 30	≈ 00:52	Declination +8.98°, 39 s late
1993	Mon, Aug 30	≈ 08:05	Declination +8.95°, 39 s late
1994	Tue, Aug 30	≈ 13:08	Declination +8.97°, 39 s late
1995	Wed, Aug 30	≈ 18:09	Declination +8.98°, 40 s late
1996	Fri, Aug 30	≈ 00:09	Declination +8.97°, 39 s late
1997	Sat, Aug 30	≈ 05:35	Declination +8.98°, 39 s late
1998	Sun, Aug 30	≈ 13:04	Declination +8.96°, 40 s late
1999	Mon, Aug 30	≈ 18:39	Declination +8.96°, 39 s late
2000	Tue, Aug 29	≈ 23:59	Declination +8.97°, 39 s late
2001	Thu, Aug 30	≈ 07:49	Declination +8.94°, 39 s late
2002	Fri, Aug 30	≈ 13:04	Declination +8.95°, 39 s late
2003	Sat, Aug 30	≈ 17:46	Declination +8.96°, 40 s late
2004	Sun, Aug 29	≈ 23:59	Declination +8.96°, 39 s late
2005	Tue, Aug 30	≈ 05:09	Declination +8.97°, 39 s late
2006	Wed, Aug 30	≈ 12:05	Declination +8.95°, 40 s late
2007	Thu, Aug 30	≈ 17:25	Declination +8.96°, 39 s late
2008	Fri, Aug 29	≈ 21:55	Declination +8.97°, 40 s late
2009	Sun, Aug 30	≈ 05:39	Declination +8.94°, 40 s late
2010	Mon, Aug 30	≈ 11:13	Declination +8.95°, 40 s late
2011	Tue, Aug 30	≈ 16:10	Declination +8.96°, 40 s late
2012	Wed, Aug 29	≈ 23:06	Declination +8.94°, 39 s late
2013	Fri, Aug 30	≈ 04:27	Declination +8.95°, 39 s late
2014	Sat, Aug 30	≈ 11:05	Declination +8.94°, 40 s late
2015	Sun, Aug 30	≈ 16:31	Declination +8.94°, 39 s late
2016	Mon, Aug 29	≈ 20:45	Declination +8.97°, 40 s late
2017	Wed, Aug 30	≈ 04:24	Declination +8.94°, 40 s late
2018	Thu, Aug 30	≈ 09:53	Declination +8.95°, 39 s late
2019	Fri, Aug 30	≈ 14:20	Declination +8.97°, 41 s late
2020	Sat, Aug 29	≈ 21:04	Declination +8.95°, 40 s late
2021	Mon, Aug 30	≈ 02:40	Declination +8.96°, 40 s late
2022	Tue, Aug 30	≈ 09:31	Declination +8.94°, 41 s late
2023	Wed, Aug 30	≈ 15:54	Declination +8.93°, 40 s late
2024	Thu, Aug 29	≈ 20:47	Declination +8.95°, 40 s late
2025	Sat, Aug 30	≈ 04:26	Declination +8.91°, 40 s late
2026	Sun, Aug 30	≈ 10:07	Declination +8.92°, 40 s late
2027	Mon, Aug 30	≈ 13:51	Declination +8.95°, 41 s late
2028	Tue, Aug 29	≈ 20:21	Declination +8.94°, 40 s late
2029	Thu, Aug 30	≈ 01:37	Declination +8.95°, 40 s late
2030	Fri, Aug 30	≈ 07:33	Declination +8.94°, 41 s late
2031	Sat, Aug 30	≈ 13:34	Declination +8.94°, 40 s late
2032	Sun, Aug 29	≈ 17:54	Declination +8.96°, 41 s late
2033	Tue, Aug 30	≈ 01:31	Declination +8.93°, 41 s late
2034	Wed, Aug 30	≈ 08:02	Declination +8.92°, 41 s late
2035	Thu, Aug 30	≈ 12:27	Declination +8.95°, 41 s late
2036	Fri, Aug 29	≈ 19:55	Declination +8.92°, 41 s late
2037	Sun, Aug 30	≈ 01:45	Declination +8.92°, 40 s late
2038	Mon, Aug 30	≈ 07:32	Declination +8.92°, 41 s late
2039	Tue, Aug 30	≈ 13:35	Declination +8.92°, 41 s late
2040	Wed, Aug 29	≈ 17:53	Declination +8.94°, 40 s late
2041	Fri, Aug 30	≈ 01:01	Declination +8.92°, 41 s late
2042	Sat, Aug 30	≈ 07:09	Declination +8.91°, 40 s late
2043	Sun, Aug 30	≈ 10:51	Declination +8.95°, 41 s late
2044	Mon, Aug 29	≈ 17:30	Declination +8.93°, 42 s late
2045	Tue, Aug 29	≈ 23:34	Declination +8.93°, 41 s late
2046	Thu, Aug 30	≈ 05:20	Declination +8.93°, 42 s late
2047	Fri, Aug 30	≈ 12:02	Declination +8.91°, 41 s late
2048	Sat, Aug 29	≈ 17:00	Declination +8.93°, 41 s late
2049	Sun, Aug 29	≈ 23:58	Declination +8.91°, 41 s late
2050	Tue, Aug 30	≈ 06:19	Declination +8.90°, 41 s late
2051	Wed, Aug 30	≈ 09:59	Declination +8.93°, 42 s late
2052	Thu, Aug 29	≈ 16:28	Declination +8.92°, 42 s late
2053	Fri, Aug 29	≈ 22:45	Declination +8.92°, 41 s late
2054	Sun, Aug 30	≈ 04:01	Declination +8.92°, 42 s late
2055	Mon, Aug 30	≈ 10:19	Declination +8.92°, 42 s late
2056	Tue, Aug 29	≈ 15:18	Declination +8.93°, 42 s late
2057	Wed, Aug 29	≈ 22:15	Declination +8.91°, 42 s late
2058	Fri, Aug 30	≈ 05:16	Declination +8.89°, 42 s late
2059	Sat, Aug 30	≈ 09:36	Declination +8.92°, 42 s late
2060	Sun, Aug 29	≈ 16:17	Declination +8.90°, 42 s late
2061	Mon, Aug 29	≈ 22:44	Declination +8.89°, 41 s late
2062	Wed, Aug 30	≈ 03:40	Declination +8.91°, 42 s late
2063	Thu, Aug 30	≈ 09:28	Declination +8.91°, 42 s late
2064	Fri, Aug 29	≈ 14:27	Declination +8.92°, 41 s late
2065	Sat, Aug 29	≈ 20:44	Declination +8.91°, 42 s late
2066	Mon, Aug 30	≈ 03:19	Declination +8.90°, 42 s late
2067	Tue, Aug 30	≈ 07:13	Declination +8.93°, 43 s late
2068	Wed, Aug 29	≈ 13:32	Declination +8.92°, 43 s late
2069	Thu, Aug 29	≈ 20:31	Declination +8.90°, 42 s late
2070	Sat, Aug 30	≈ 02:02	Declination +8.90°, 43 s late
2071	Sun, Aug 30	≈ 08:35	Declination +8.89°, 43 s late
2072	Mon, Aug 29	≈ 14:21	Declination +8.90°, 42 s late
2073	Tue, Aug 29	≈ 20:41	Declination +8.89°, 42 s late
2074	Thu, Aug 30	≈ 03:04	Declination +8.88°, 42 s late
2075	Fri, Aug 30	≈ 07:00	Declination +8.91°, 42 s late
2076	Sat, Aug 29	≈ 12:48	Declination +8.91°, 42 s late
2077	Sun, Aug 29	≈ 19:32	Declination +8.89°, 42 s late
2078	Tue, Aug 30	≈ 00:34	Declination +8.91°, 43 s late
2079	Wed, Aug 30	≈ 06:16	Declination +8.91°, 43 s late
2080	Thu, Aug 29	≈ 12:03	Declination +8.91°, 43 s late
2081	Fri, Aug 29	≈ 18:35	Declination +8.89°, 43 s late
2082	Sun, Aug 30	≈ 01:23	Declination +8.88°, 43 s late
2083	Mon, Aug 30	≈ 06:28	Declination +8.89°, 43 s late
2084	Tue, Aug 29	≈ 12:22	Declination +8.89°, 43 s late
2085	Wed, Aug 29	≈ 19:14	Declination +8.87°, 43 s late
2086	Fri, Aug 30	≈ 00:15	Declination +8.88°, 43 s late
2087	Sat, Aug 30	≈ 05:28	Declination +8.89°, 43 s late
2088	Sun, Aug 29	≈ 11:24	Declination +8.89°, 43 s late
2089	Mon, Aug 29	≈ 17:30	Declination +8.89°, 43 s late
2090	Tue, Aug 29	≈ 23:41	Declination +8.88°, 43 s late
2091	Thu, Aug 30	≈ 04:20	Declination +8.90°, 44 s late
2092	Fri, Aug 29	≈ 10:00	Declination +8.90°, 44 s late
2093	Sat, Aug 29	≈ 17:11	Declination +8.88°, 43 s late
2094	Sun, Aug 29	≈ 22:59	Declination +8.88°, 43 s late
2095	Tue, Aug 30	≈ 04:46	Declination +8.88°, 43 s late
2096	Wed, Aug 29	≈ 11:08	Declination +8.87°, 43 s late
2097	Thu, Aug 29	≈ 17:25	Declination +8.87°, 43 s late
2098	Fri, Aug 29	≈ 23:18	Declination +8.86°, 44 s late
2099	Sun, Aug 30	≈ 03:58	Declination +8.88°, 44 s late
2100	Mon, Aug 30	≈ 09:27	Declination +8.89°, 44 s late