Live Sky Report
What Can I See in the Sky Tonight in Itatiaia, Rio de Janeiro, Brazil?
Waxing Gibbous moon at 67%, Saturn shines at magnitude 0.3. Calculated for -22.50°, -44.56° (America/Sao_Paulo).
Visible planets tonight
Saturn, Mars, Jupiter, Mercury — brightest: Saturn at mag 0.3 in Cetus
🔭 Tonight's Sky Report
📍 Itatiaia, Rio de Janeiro, Brazil — Tuesday, October 20
Space weather observed: 6:00 AM UTC
Tonight's sky above Itatiaia, Rio de Janeiro, Brazil
Skywatchers in Itatiaia, Rio de Janeiro, Brazil have the same live tools professional observers use — a real ephemeris, live Kp readings from NOAA SWPC, and hourly cloud forecasts — condensed into one report on this page.
Local sky character in Itatiaia
Tropical / equatorial latitudes · southern hemisphere · 406 m elevation
- The south celestial pole stands 22.5° above the horizon, so stars within 23° of it never set from here.
- About 69.1% of the whole sky rises above the horizon at some point in the year from this latitude.
- The Milky Way's core in Sagittarius culminates about 83.5° up, passing almost directly overhead.
- The Large and Small Magellanic Clouds are circumpolar here — visible on any clear, dark night of the year.
- At 406 m elevation, roughly 5% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
Itatiaia is small enough that local light domes are limited — on a clear, moonless night the Milky Way is realistically within reach.
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Astronomy near Itatiaia
Real great-circle distances from Itatiaia, Rio de Janeiro, Brazil.
- Pico dos Dias Observatory — observatory, 105 km away, 1864 m
Best nights this month in Itatiaia
Calculated for these coordinates and today's date — not a fixed list.
- 2026-10-21 — Orionids peak — up to 20/hour
Radiant in Orion. Visible from both hemispheres. The Moon is 72% lit on peak night, so lunar interference is moderate.
- 2026-10-25 — Full Moon
A 99%-lit Moon washes out faint objects, but lunar terrain along the limb is at its most striking — plan bright targets and planets instead of deep sky.
- 2026-11-09 — Darkest night of the coming month
The Moon is only 0% illuminated, giving the least lunar interference in the next 30 nights — the best window for the Milky Way and faint deep-sky targets from Itatiaia, Rio de Janeiro, Brazil.
- 2026-11-17 — Leonids peak — up to 15/hour
Radiant in Leo. Visible from both hemispheres. The Moon is 45% lit on peak night, so lunar interference is moderate.
Itatiaia, Rio de Janeiro, Brazil stargazing questions
- What can I see in the sky tonight from Itatiaia, Rio de Janeiro, Brazil?
- Tonight from Itatiaia, Rio de Janeiro, Brazil expect a waxing gibbous Moon at 67% illumination, with these naked-eye planets above the horizon after dark: Saturn, Mars, Jupiter, Mercury. The night offers about 8.7 hours of true astronomical darkness.
- What planets are visible tonight in Itatiaia, Rio de Janeiro, Brazil?
- Tonight in Itatiaia, Rio de Janeiro, Brazil, Saturn, Mars, Jupiter, Mercury are visible to the naked eye after dark, based on this location's real ephemeris for tonight.
- When does darkness start tonight in Itatiaia, Rio de Janeiro, Brazil?
- Astronomical darkness begins at 7:21 PM local time in Itatiaia, Rio de Janeiro, Brazil tonight, the moment the Sun drops more than 18° below the horizon and the sky becomes fully dark for faint-object observing.
- Can you see the aurora tonight in Itatiaia, Rio de Janeiro, Brazil?
- Itatiaia, Rio de Janeiro, Brazil is far enough from the pole that aurora only reaches overhead during a major geomagnetic storm — specifically when the planetary Kp index reaches about 9, a level reached only a handful of times per solar cycle.
- What is the stargazing light pollution level in Itatiaia, Rio de Janeiro, Brazil?
- Itatiaia, Rio de Janeiro, Brazil is a small town — typically Bortle class 1–4 (rural to excellent dark sky), where the Milky Way is usually visible on clear, moonless nights away from local lighting. These are typical ranges for this population size, not a measured reading for this exact spot — use tonight's Moon phase and the best-nights list above to time a visit away from direct lighting.
- Does Itatiaia, Rio de Janeiro, Brazil's elevation help stargazing?
- At 406 m you are above a meaningful fraction of the atmosphere, which reduces extinction and scintillation — the reason major observatories are sited high. Pico dos Dias Observatory sits about 105 km from Itatiaia, Rio de Janeiro, Brazil at 1864 m.
- What should I plan for observing near Itatiaia, Rio de Janeiro, Brazil?
- High sites reward targets that suffer most from atmosphere: planets at high altitude, faint nebulae, and the Milky Way, which culminates around 83.5° here. Cold and thinner air are the practical constraints, not the sky.
- How dark does it actually get in Itatiaia, Rio de Janeiro, Brazil tonight?
- About 8.7 hours of astronomical darkness (Sun more than 18° below the horizon). That is the real observing window for faint objects; brighter targets are workable from dusk onward.
Nearby cities
Real great-circle distance from Itatiaia, Rio de Janeiro, Brazil.
More in Rio de Janeiro
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Sky tonight across Brazil
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Popular astronomy destinations
Aurora hubs, dark-sky sites, and observatory towns.
🛰️ ISS Visibility
Next visible pass rises at 11:24 PM, lasting about 6 minutes.
4 more visible passes predicted in this window.
☄️ Orionids peaks in 1 day
Up to 20 meteors/hour at peak, radiating from Orion.
Full viewing guide →Related astronomy for Itatiaia, Rio de Janeiro, Brazil
Frequently Asked Questions
Is this just astronomy weather for Itatiaia?
This page goes beyond ordinary astronomy weather -- it combines real local weather for astronomy, live space weather, and the space weather aurora connection into one live report for Itatiaia, Rio de Janeiro, Brazil.
What are tonight's astronomy viewing conditions for Itatiaia?
The sky viewing conditions badge above reflects the real astronomy viewing conditions for Itatiaia, Rio de Janeiro, Brazil right now -- cloud cover, darkness, and moon interference combined, not moon phase alone. Good weather for stargazing depends on all of these together.