1.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Wed, 22 Sep 2021 at 12:14 PDT (1,380 days ago) in Virgo

2.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Mon, 05 Jul 2021 at 15:27 PDT (1,459 days ago) in Pisces

3.

June solstice 21 June will be the longest day of 2021 in the northern hemisphere. Sun, 20 Jun 2021 at 20:25 PDT (1,474 days ago) in Taurus

4.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Sat, 20 Mar 2021 at 02:30 PDT (1,566 days ago) in Pisces

5.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sat, 02 Jan 2021 at 05:50 PDT (1,643 days ago) in Pisces

6.

December solstice 21 December will be the shortest day of 2020 in the northern hemisphere. Mon, 21 Dec 2020 at 01:55 PDT (1,655 days ago) in Sagittarius

7.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Tue, 22 Sep 2020 at 06:23 PDT (1,745 days ago) in Virgo

8.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Sat, 04 Jul 2020 at 04:34 PDT (1,825 days ago) in Pisces

9.

June solstice 20 June will be the longest day of 2020 in the northern hemisphere. Sat, 20 Jun 2020 at 14:36 PDT (1,839 days ago) in Taurus

10.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Thu, 19 Mar 2020 at 20:42 PDT (1,932 days ago) in Pisces

11.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sat, 04 Jan 2020 at 23:47 PDT (2,006 days ago) in Pisces

12.

December solstice 22 December will be the shortest day of 2019 in the northern hemisphere. Sat, 21 Dec 2019 at 20:12 PDT (2,021 days ago) in Sagittarius

13.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Mon, 23 Sep 2019 at 00:43 PDT (2,110 days ago) in Virgo

14.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Thu, 04 Jul 2019 at 15:10 PDT (2,191 days ago) in Pisces

15.

June solstice 21 June will be the longest day of 2019 in the northern hemisphere. Fri, 21 Jun 2019 at 08:47 PDT (2,204 days ago) in Taurus

16.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Wed, 20 Mar 2019 at 14:52 PDT (2,297 days ago) in Pisces

17.

The Earth at perihelion The Earth reaches its closest point to the Sun. Wed, 02 Jan 2019 at 21:19 PDT (2,374 days ago) in Pisces

18.

December solstice 21 December will be the shortest day of 2018 in the northern hemisphere. Fri, 21 Dec 2018 at 14:16 PDT (2,386 days ago) in Sagittarius

19.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Sat, 22 Sep 2018 at 18:48 PDT (2,476 days ago) in Virgo

20.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Fri, 06 Jul 2018 at 09:46 PDT (2,554 days ago) in Pisces