National Astronomical Observatory of Japan

National Astronomical Observatory of Japan

The National Astronomical Observatory of Japan is an astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii and Chile. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for National Astronomical Observatory of Japan, Japan, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

77%


Total
Publications

13K


Total Open
Publications

10K


Total
Citations

501K


Open Access
Percentage

77%


Total
Publications

13K


Total Open
Publications

10K


Total
Citations

501K

Wikipedia

Website

download

Breakdown

16% 42% 19% 23%

Publisher Open

16%

Both

42%

Other Platform Open

19%

Closed

23%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

0100200300400500600700Total Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

16%OA Journal

OA Journal 16%

1.2K

Hybrid 16%

1.2K

No Guarantees 68%

5.3K

Other Platform Open

Preprint 86%

6.9K

Institution 43%

3.4K

Other Internet 20%

1.6K

Public 3%

232

Domain 1%

72

Other Platform Locations

Name

Platform Type

Publications

arXiv
Preprint
8K
CiteSeer X
Other Internet
896
California Institute of Technology - CaltechAUTHORS
Institution
769
Chiba Institute of Technology - Springer Link
Institution
605
DANS - Data Archiving and Networked Services - NARCIS - National Academic Research and Collaborations Information System
Institution
587
Le Centre pour la Communication Scientifique Directe - HAL - TYPE ART
Other Internet
421
University of Groningen / Centre for Information Technology - University of Groningen research database
Institution
325
Cardiff University - ORCA Online Research @Cardiff
Institution
302
Ghent University - Ghent University Academic Bibliography
Institution
290
Radboud University - Radboud Repository
Institution
279
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Data updated 7 April 2025

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