- Start
- Jun 21, 203975% CONFIDENCEfrom the source
Annular Solar Eclipse Crosses Canada
- An annular solar eclipse on 2039 Jun 21, catalogued by NASA/GSFC as sequence 09595, relative number -12, of Saros series 147[1][2][3]
- Greatest Eclipse falls at 17:11:29.6 UT at 78°52.5'N 102°06.5'W, with the Sun 33.4° up, a path 365.3 km wide and a central duration of 04m04.9s[1]
- Greatest Duration is 11 seconds later at 17:11:40 UT at 78°55'N 101°47'W, path width 365.2 km and the same 04m04.9s duration, which the Google-map page also states[1][2]
- The antumbral shadow’s central line runs from 45°24.9'N 177°10.1'W at the opening limits to 54°11.2'N 033°12.4'E at the closing limits, where the Sun is on the horizon, the path is about 497 km and 496 km wide and annularity lasts 03m40.7s and 03m39.6s[1]
- The Saros 147 catalog gives the same instant in Terrestrial Dynamical Time as 2039 Jun 21 17:12:54 TD with ΔT = 84 s, gamma 0.8312, magnitude 0.9454, path width 365 km and central duration 04m05s — matching the path page’s 365.3 km and 04m04.9s[1][3]
- Annularity can only be seen between the blue northern and southern path limits and is longest on the red central line; yellow lines mark maximum eclipse at 10-minute intervals[2]
- Predictions use the VSOP87/ELP2000-85 solar and lunar ephemerides with ΔT = 83.4 seconds, and exclude the lunar limb profile, whose corrections ‘may shift the limits of the eclipse path north or south by ~1-3 kilometers, and change the eclipse duration by ~1-3 seconds’[1][2]
- Saros 147 is an unusually long series — 1424.38 years and 80 solar eclipses, from a partial on 1624 Oct 12 to a partial on 3049 Feb 24 — and contains no total eclipses at all: 40 partial and 40 annular; this one follows 2021 Jun 10 (03m51s) and precedes 2057 Jul 01 (04m22s)[3]
- All calculations are by Fred Espenak, NASA’s GSFC, who ‘assumes full responsibility for their accuracy’[1][2][3]
References 382% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]75%eclipse.gsfc.nasa.gov/SEpath/SEpath2001/SE2039Jun21Apath.htmleclipse.gsfc.nasa.gov· Posted Sep 20, 2026· Starts Jun 21, 2039 ✓· 33% of score
NASA's[2][3] eclipse catalogue gives the instant of greatest eclipse as 17:11:29 UT on 2039-06-21 (17:12:53 TD, the two separated by delta-T), from Saros series 147. Eclipse circumstances are computed from orbital mechanics, so the date and time are exact centuries ahead.
- [2]90%Annular Solar Eclipse of 2039-06-21 - Google map of the patheclipse.gsfc.nasa.gov· Added Sep 20, 2026· 33% of score
NASA's[1][3] interactive map of this eclipse, showing the central path, the points of greatest eclipse and greatest duration, and local circumstances anywhere on the map.
- [3]80%Saros series 147eclipse.gsfc.nasa.gov· Added Sep 20, 2026· 33% of score
The saros series this eclipse belongs to, listing every eclipse in the same 18-year family and where each one fell.[1]
Suggest a correction
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.
