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Research facility · Rio de Janeiro · Brazil

National Observatory

In research, National Observatory stands highest in Physical Sciences (#6,487 of 12,888 worldwide), Physics and Astronomy (#1,570 of 1,646 worldwide) and Social Sciences (#10,224 of 10,521 worldwide), 2022–2025. Relative to its size it is most specialised in Astronomy and Astrophysics, Geophysics and Physics and Astronomy — Astronomy and Astrophysics is 33.0× its share of world research.

on.brROR OpenAlex
World rank, 2022–2025
#11,471
of 28,054 · #9,343 all time
Rank in Brazil
#174
of 714
Research works
1.4k
▲ 34% vs 2013–17
Citations
21k
15.0 per fractional work
Top-10% rate
10.9%
record average 16.5%
Open access
65%
world 28%

What is National Observatory known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #6,487 of 12,888 14.4%148 #5624
Physics and AstronomyField #1,570 of 1,646 23.3%63 #2457
Social SciencesDomain #10,224 of 10,521 4.3%84 #15186
Social SciencesField #6,272 of 6,365 4.0%61 #9523

Each strip is that field’s whole ranked pool, with the notch where National Observatory sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#5,624 #6,487
  2. Physics and Astronomy#2,457 #1,570
  3. Social Sciences#15,186 #10,224
  4. Social Sciences#9,523 #6,272
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does National Observatory specialise in?

Where its research is concentrated relative to its size: Astronomy and Astrophysics takes 33.0× the share of its output that it takes of world research.

  1. Astronomy and AstrophysicsSubfield · 44.7 works33×
  2. GeophysicsSubfield · 22.7 works25×
  3. Physics and AstronomyField · 62.6 works11×
  4. Earth and Planetary SciencesField · 35.2 works8.6×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.56× its world share, 7 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.26× its world share, 4 worksBiochemistry, Geneti…Immunology and Microbiology: 0.19× its world share, 0 worksImmunology and Micro…Neuroscience: 0.16× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.07× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.09× its world share, 0 worksChemistryComputer Science: 0.53× its world share, 11 worksComputer ScienceEarth and Planetary Sciences: 8.60× its world share, 35 worksEarth and Planetary …Energy: 1.04× its world share, 2 worksEnergyEngineering: 0.43× its world share, 17 worksEngineeringEnvironmental Science: 1.36× its world share, 18 worksEnvironmental ScienceMaterials Science: 0.12× its world share, 1 worksMaterials ScienceMathematics: 0.30× its world share, 1 worksMathematicsPhysics and Astronomy: 10.79× its world share, 63 worksPhysics and AstronomyDentistry: 0.02× its world share, 0 worksDentistryHealth Professions: 1.13× its world share, 8 worksHealth ProfessionsMedicine: 0.18× its world share, 9 worksMedicineNursing: 0.15× its world share, 0 worksNursingArts and Humanities: 0.58× its world share, 4 worksArts and HumanitiesBusiness, Management and Accounting: 0.57× its world share, 5 worksBusiness, Management…Decision Sciences: 0.65× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 1.34× its world share, 8 worksEconomics, Econometr…Psychology: 0.61× its world share, 5 worksPsychologySocial Sciences: 1.85× its world share, 61 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 10.8×. Every wedge is a field page.

Who are the top researchers at National Observatory?

Ranked on the composite score, M. A. G. Maia, L. N. da Costa and Verne V. Smith lead among researchers whose main affiliation is National Observatory.

  1. 1 M. A. G. Maia Brazil · #11,410 worldwide 1.6k citations · 76 works
  2. 2 L. N. da Costa Brazil · #20,302 worldwide 2.1k citations · 168 works
  3. 3 Verne V. Smith Brazil · #107,643 worldwide 711 citations · 117 works
  4. 4 Kátia Cunha Brazil · #142,685 worldwide 574 citations · 103 works
  5. 5 R. S. Gomes Brazil · #147,799 worldwide 142 citations · 28 works
  6. 6 T. Mothé-Diniz Brazil · #287,092 worldwide 112 citations · 21 works
  7. 7 N. O. Santos Brazil · #393,298 worldwide 120 citations · 16 works
  8. 8 F. Roig Brazil · #460,077 worldwide 167 citations · 38 works
  9. 9 Micol Benetti Brazil · #491,202 worldwide 171 citations · 23 works
  10. 10 Roderik Overzier Brazil · #596,006 worldwide 118 citations · 32 works
All ranked researchers at National Observatory

Which keywords describe research at National Observatory?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Teacher Development, Student Performance, Educational Leadership, Educational Innovation, Organizational Commitment, Quality Education, School Culture and Supernovae.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Student Performance27▲ 93×3 topics
  2. Teacher Development27▲ 164×2 topics
  3. Educational Leadership26▲ 80×3 topics
  4. Educational Innovation26▲ 182×2 topics
  5. Organizational Commitment26▲ 49×2 topics
  6. Quality Education26▲ 262×1 topic
  7. School Culture26▲ 262×1 topic
  8. Climate Change13▲ 1.82×50 topics
  9. Star Formation11▲ 78×2 topics
  10. Supernovae11▲ 50×2 topics
  11. Sustainable Development11▲ 2.6×18 topics
  12. Dark Matter10▲ 35×3 topics
  13. Cosmology10▲ 56×3 topics
  14. Black Holes10▲ 39×3 topics
  15. Remote Sensing9▲ 2.9×23 topics
  16. Public Health9▲ 2.3×25 topics
  17. General Relativity8▲ 42×2 topics
  18. Dark Energy7▲ 44×2 topics
  19. Cosmic Microwave Background7▲ 50×1 topic
  20. Cosmological Parameters7▲ 50×1 topic
  21. Exoplanets7▲ 70×1 topic
  22. Stellar Astrophysics7▲ 70×1 topic
  23. Galaxies7▲ 100×1 topic
  24. Stellar Populations7▲ 100×1 topic
  25. Innovation7▲ 2.5×14 topics
  26. Astronomical Instrumentation6▲ 98×1 topic
  27. Electrical Resistivity Tomography6▲ 93×1 topic
  28. Magnetotelluric Imaging6▲ 93×1 topic
  29. Spectrograph6▲ 98×1 topic
  30. Rural Development6▲ 6.5×5 topics
  31. Tomography5▲ 10×4 topics
  32. Plate Tectonics5▲ 12×3 topics
  33. Magnetic Fields5▲ 28×3 topics
  34. Accretion Disks4▲ 37×2 topics
  35. Solar Wind4▲ 19×2 topics
  36. Tectonics4▲ 14×3 topics
  37. Gravitational Waves4▲ 30×2 topics
  38. Solar System Abundances4▲ 35×1 topic
  39. Terrestrial Planets4▲ 35×1 topic
  40. Geodetic Measurements4▲ 14×2 topics

Which research topics does National Observatory publish most on?

By volume in 2022–2025: Education and Teacher Training, Stellar, planetary, and galactic studies, Cosmology and Gravitation Theories and Galaxies: Formation, Evolution, Phenomena.

Education and Teacher Tr…26Education and Teacher Training: 26 fractional worksStellar, planetary, and galactic studies: 7 fractional worksCosmology and Gravitation Theories: 7 fractional worksGalaxies: Formation, Evolution, Phenomena: 7 fractional worksGeophysical and Geoelectrical Methods: 6 fractional worksAstronomy and Astrophysi…6Astronomy and Astrophysical Research: 6 fractional worksAstro and Planetary Science: 4 fractional worksAstrophysics and Star Formation Studies: 4 fractional worksGamma-ray bursts and supernovae: 3 fractional worksEarthquake Detection and Analysis: 3 fractional works
EducationAstronomy and AstrophysicsGeophysicsInstrumentation

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Education and Teacher Training Education 26 works
  2. 2 Stellar, planetary, and galactic studies Astronomy and Astrophysics 7 works
  3. 3 Cosmology and Gravitation Theories Astronomy and Astrophysics 7 works
  4. 4 Galaxies: Formation, Evolution, Phenomena Astronomy and Astrophysics 7 works
  5. 5 Geophysical and Geoelectrical Methods Geophysics 6 works
  6. 6 Astronomy and Astrophysical Research Instrumentation 6 works
  7. 7 Astro and Planetary Science Astronomy and Astrophysics 4 works
  8. 8 Astrophysics and Star Formation Studies Astronomy and Astrophysics 4 works
  9. 9 Gamma-ray bursts and supernovae Astronomy and Astrophysics 3 works
  10. 10 Earthquake Detection and Analysis Geophysics 3 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available65.0%not open35.0%

World: 28% of research is openly available.

with international co-authors41.9%domestic only58.1%

World: 19% is written across borders.

How has National Observatory's research output changed?

Output in 2018–2022 was 34% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Rio de Janeiro

All research institutions in Rio de Janeiro

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.