PARTIAL SOLAR ECLIPSEChicago, United StatesSaturday 14 October 2023 · times in UTC-5
42.8%
OF THE SUN COVERED
A clear bite was taken out of the Sun. Daylight barely changed, so this was an eclipse you had to know about in advance to notice.
02 · TIMING
When did it happen?
The whole eclipse ran 2h 45m. All times are local, in UTC-5.
10:37 MAX 11:58 13:22
| Phase | LOCAL TIME | SUN |
|---|---|---|
| First contactthe Moon touches the Sun's edge | 10:37 | 33° SE |
| Maximumthe deepest point | 11:58 | 39° SSE |
| Last contactthe Sun is whole again | 13:22 | 39° SSW |
03 · DIRECTION
Where was it in the sky?
At maximum the Sun was only 39° above the horizon to the south, so an open view in that direction was needed.
The Sun's height and bearing at maximum, from Chicago. The horizon is at 0°.
THE EXPERIENCE
What it was actually like
A distinct bite was taken out of the Sun, reaching 42.8% at maximum. Daylight barely changed — the eye adapts far too well for that — so this was an eclipse you had to know about in advance to notice. Anyone watching needed a filter; the remaining Sun was as dangerous as an uneclipsed one.
04 · POSITION
Where was it seen?
The path passed 1,694 km to the south-west of Chicago and was 195 km wide. Only inside it was the Sun covered completely.
THE DAY
- SUNRISE
- 07:01
- SUNSET
- 18:10
- DAY LENGTH
- 11h 09m
- CIVIL DUSK
- 18:38
REFERENCE FIGURES
- OBSCURATION
- 42.8%
- COORDINATES
- 41.878° N, 87.63° W
- PATH WIDTH
- 195 km
- SHADOW SPEED
- 2,019 km/h
- SAROS
- 134 · no. 41
- MAGNITUDE
- 0.5400
- GAMMA
- 0.3754
Contact times are accurate to a couple of seconds at the coordinates above. Altitudes are geometric — unrefracted, on the WGS 84 ellipsoid.
NEXT FROM CHICAGO
What else is coming here?
The rest of what the sky over Chicago has coming, soonest first.