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Source: NOAA SWPC

Astronomy & Aurora Tonight in Rio das Ostras, BR

2026-10-07 · times in America/Sao_Paulo · 22.53°S, 41.95°W

Sunrise, Sunset & Twilight

EventTime
Sunrise5:22 AM
Sunset5:48 PM
Day length12 h 26 min
End of civil twilight6:11 PM
End of nautical twilight6:37 PM
End of astronomical twilight7:04 PM
Night length (sunset to sunrise)11 h 33 min
Fully dark sky tonight9 h 02 min
Astronomical twilight starts (morning)4:06 AM

Moon

Moonrise3:17 AM
Moonset3:08 PM
Illumination9.6%
PhaseWaning Crescent
Sublunar point (Moon overhead)7.64°N, 121.92°W
Sublunar point ground speed1,602 km/h

Moon values are for the moment this page was generated (17:41 UTC). A moonrise or moonset can be missing on a given date.

Planets Tonight

PlanetRiseSetMeridianVisibility
Mercury (mag -0.1)6:34 AM7:37 PM1:05 PMVisible about 1.3 h after dark, highest 19° toward the W.
Venus (mag -4.6)6:16 AM7:33 PM12:55 PMVisible about 1 h after dark, highest 17° toward the W.
Mars (mag 1.1)1:48 AM12:43 PM7:15 AMVisible about 2.8 h after dark, highest 36° toward the NE.
Jupiter (mag -1.9)2:40 AM1:52 PM8:16 AMVisible about 2 h after dark, highest 29° toward the NE.
Saturn (mag 0.2)5:27 PM5:28 AM11:25 PMVisible about 11 h after dark, highest 66° toward the N.

Aurora Tonight

Aurora near poles only. Rio das Ostras is too far from them to see regular aurora; it would take an extreme geomagnetic storm. See the live aurora forecast.

Nearby Locations

All cities in Rio de Janeiro · All regions in Brazil · Astronomy hub