Where to See the Solar Eclipse of April 20 2023

On April 20, 2023 a Hybrid Solar Eclipse will be visible across Western Australia, Timor, Papua New Guinea, Malaysia.

Hybrid Solar Eclipses are a rare phenomenon. They happen when, due to the curvature of the Earth which causes a variation of the distance of the Moon from the observing point along the eclipse path (and, consequently, a slight variation in the apparent diameter of the Moon), certain regions will observe an Annular Eclipse while other regions will observe a Total Solar Eclipse (see definition on Wikipedia). The duration of the totality phase during Hybrid Solar Eclipses is typically quite short. 

In the case of the eclipse of April 20 2023, a total eclipse will be visible along the vast majority of the eclipse path, while the annular phase will be visible from the South Western Indian Ocean at the beginning of the eclipse, and the middle Pacific ocean at the end of the eclipse. The eclipse, visible about 40km south of Timor-Leste, will have a duration of 1 minutes and 17 seconds.

Through a much wider area, including the whole Australia,  Jakarta, Sumatra, Indonesia, Malaysia, Vietnam, Philippines Taiwan and New Zealand, a Partial Solar Eclipse will be visible. 

The animated chart below (credited to NASA) represents the movement of the shadow of the Moon during the eclipse of April 20 2023. The large light gray moving circle represents the penumbra, from where a partial eclipse will be visible. The small black dot ay the center of the large circle represents the Moon shadow at the center of the eclipse (also called umbra), from where an annular/total eclipse will be visible. 

The chart below (credited to NASA) offers a comprehensive view of the areas interested by the eclipse. The red closed lines at the left and the right represent the sun rise/set curves; the main blue line represents the totality strip (from where a total/annular eclipse will be visible); the green lines are isochrones representing the position of the shadow of the moon in Universal Time; the cyan lines represent lines of equal magnitude (see Magnitude of Eclipse definition on Wikipedia), starting from 1.0 (inside the line of totality), going to 0 at the most external lines. The greater the magnitude of the eclipse, the larger the fraction of the Sun's surface covered by the Moon.

Observing the Solar Eclipse of April 20 2023 from Australia

Only a tiny fraction of the whole Australia will experience a total eclipse in April 20 2023. As shown in the map below, the totality strip of the eclipse will just pass through the Western coast of Australia, crossing Cape Range National Park, Ningaloo, Learmonth, Exmouth and Barrow Island.

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The following  table lists the April 20 2023 eclipse circumstances for the main locations shown in the map above.

Location	Eclipse Type	Magnitude	Local Time of First Contact	Local Time of Max Eclipse	Totality Duration	Local Time of Last Contact
Ningaloo	Total	1.0015	10:03:04	11:28:23	42s	13:00:14
Cape Range National Park	Total	1.0025	10:03:47	11:29:33	51s	13:01:24
Learmonth	Total	1.0032	10:04:03	11:29:45	57s	13:01:52
Exmouth	Total	1.0035	10:04:26	11:30:16	58s	13:02:29
Barrow Island	Total	1.0061	10:07:16	11:34:23	1m 7s	13:07:02

From the rest of Australia, a partial eclipse will be visible. This table summarizes the eclipse circumstances for the mayor Australian cities. A more comprehensive list of cities is available here: Visibility of April 20 2023 Eclipse from the major cities of Australia.

City	Eclipse Type	Magnitude	% Solar Disc Covered	Local Time Start Eclipse	Local Time Max Eclipse	Local Time End Eclipse
Adelaide	Partial	0.3235	21.03%	13:23:51	14:30:06	15:35:31
Brisbane	Partial	0.2693	16.11%	13:43:47	14:45:04	15:42:01
Canberra	Partial	0.1921	9.83%	14:29:45	15:22:07	16:12:27
Melbourne	Partial	0.2050	10.82%	14:15:25	15:09:10	16:01:33
Perth	Partial	0.7660	70.71%	09:59:57	11:20:29	12:46:34
Sydney	Partial	0.1910	9.75%	14:36:52	15:29:02	16:18:46
Hobart	Partial	0.1250	5.21%	14:24:43	15:06:09	15:46:43
Darwin	Partial	0.8450	80.68%	12:17:45	13:52:28	15:25:39

Observing the Solar Eclipse of April 20 2023 from Timor-Leste

As shown in the image below, the strip of totality of the April 20 2023 eclipse will cross the eastern side of Timor-Leste. The point of Greatest Eclipse will be in the Timor Sea, about 40 kilometers South of Timor. From there the Total Eclipse will have its maximum duration of 1 minutes and 17 seconds and a magnitude of 1.0067.

The following table shows a summary of the eclipse circumstances for the main locations shown in the map above.

Location	Eclipse Type	Magnitude	Local Time of First Contact	Local Time of Max Eclipse	Totality Duration	Local Time of Last Contact
Macadique	Total	1.0066	11:44:39	13:19:58	1m 17s	14:55:12
Lacoliu	Total	1.0027	11:45:13	13:20:34	1m 3s	14:55:49
Lospalos	Total	1.0037	11:46:17	13:21:45	1m 9s	14:56:52

Outside of the totality strip, the rest of Timor-Leste will observe a partial eclipse. The following table summarizes the eclipse circumstances for other cities in Timor-Leste. Additional information is available at: Visibility of the Solar Eclipse of April 20 2023 from Timor-Leste.

City	Eclipse Type	Magnitude	% Solar Disc Covered	Local Time Start Eclipse	Local Time Max Eclipse	Local Time End Eclipse
Aileu	Partial	0.9843	98.36%	11:43:07	13:18:06	14:53:31
Ainaro	Partial	0.9886	98.88%	11:42:31	13:17:27	14:52:52
Dili	Partial	0.9809	97.94%	11:43:29	13:18:30	14:53:53
Liquica	Partial	0.9766	97.41%	11:43:02	13:17:54	14:53:20
Maliana	Partial	0.9825	98.13%	11:41:59	13:16:47	14:52:18
Maubara	Partial	0.9742	97.11%	11:42:42	13:17:33	14:52:58
Same	Partial	0.9918	99.25%	11:42:44	13:17:42	14:53:07
Suai	Partial	0.9900	99.03%	11:41:27	13:16:12	14:51:42
Venilale	Partial	0.9996	99.99%	11:44:51	13:20:06	14:55:22

Observing the Solar Eclipse of April 20 2023 from Papua New Guinea

From a 40 kilometers wide strip of land in West Papua (see image below), across the Teluk Cenderawasih National Park, it will be possible to observe a total eclipse on April 20 2023. 

The following table shows a summary of the eclipse circumstances for the main locations shown in the map above.

Location	Eclipse Type	Magnitude	Local Time of First Contact	Local Time of Max Eclipse	Totality Duration	Local Time of Last Contact
Antalisa	Total	1.0061	12:08:29	13:45:12	1m 12s	15:17:07
Soetoeri	Total	1.0031	12:11:44	13:48:26	1m 0s	15:19:41
Salebe	Total	1.0053	12:12:55	13:49:35	1m 9s	15:20:37
Roswar	Total	1.0015	12:15:19	13:51:51	44s	15:22:26
Wooi	Total	1.0026	12:18:36	13:55:01	57s	15:24:46
Jendidori	Total	1.0057	12:20:53	13:57:10	1m 7s	15:26:24

Additional information is available at: Visibility of the Solar Eclipse of April 20 2023 from Papua New Guinea.  

Other Mayor Cities Interested by the Solar Eclipse of April 20 2023

City	Country	Eclipse Type	Magnitude	% Solar Disc Covered	Local Time Start Eclipse	Local Time Max Eclipse	Local Time End Eclipse
Kuala Lumpur	Malaysia	Partial	0.1725	8.40%	11:05:05	11:55:01	12:47:14
Singapore	Singapore	Partial	0.2636	15.65%	10:54:56	11:55:13	12:58:42
Jakarta	Indonesia	Partial	0.4980	39.03%	09:29:18	10:45:16	12:06:38
Ho Chi Min City	Vietnam	Partial	0.1210	4.98%	10:36:32	11:20:13	12:04:51
Manila	Philippines	Partial	0.3511	23.70%	11:44:34	12:55:03	14:04:03
Taipei	Taiwan	Partial	0.0903	3.22%	12:34:16	13:10:58	13:47:02
Auckland	New Zealand	Partial	0.0644	1.94%	17:34:10	18:00:03	18:24:54
Wellington	New Zealand	Partial	0.0102	0.12%	17:40:54	17:51:14	18:01:25

Other Hybrid Solar Eclipses Visible in This Century

As mentioned, hybrid solar eclipses are a rare phenomenon. Besides the eclipse of April 20 2023, only four other hybrid eclipses will happen during the 21th century:

• November 14, 2031 (duration of totality 1 minute 9 seconds, maximum eclipse in the central Pacific Ocean)
• November 25, 2049 (duration of totality 39 seconds, maximum eclipse in the Indian Ocean, West of Sumatra)
• May 20, 2050 (duration of totality 22 seconds, maximum eclipse in the southern Pacific Ocean)
• December 6, 2067 (duration of totality 48 seconds, , maximum eclipse in the Atlantic Ocean East of Brazil)