Leiden Observatory
Leiden Observatory is an astronomical institute of Leiden University, in the Netherlands. Established in 1633 to house the quadrant of Willebrord Snellius, it is the oldest operating university observatory in the world, with the only older still existing observatory being the Vatican Observatory. Derived from Wikipedia licensed CC-BY-SA.
Open Access statistics for Leiden Observatory, Netherlands, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
82%
Total
Publications
2.3K
Total Open
Publications
1.9K
Total
Citations
142K
Open Access
Percentage
82%
Total
Publications
2.3K
Total Open
Publications
1.9K
Total
Citations
142K
Breakdown
Publisher Open
12%
Both
61%
Other Platform Open
8%
Closed
19%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 83%
1.4K
Hybrid 4%
62
No Guarantees 13%
220
Other Platform Open
Preprint 79%
1.2K
Institution 60%
948
Other Internet 10%
160
Public 2%
34
Domain 1%
19
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
arXiv | Preprint | 1.3K |
Royal Netherlands Academy of Arts and Sciences | Institution | 448 |
Leiden University | Institution | 262 |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 188 |
DOI | Other Internet | 184 |
University of Groningen | Institution | 144 |
University of Amsterdam | Institution | 109 |
University of Liège | Institution | 103 |
Chiba Institute of Technology | Institution | 92 |
Durham University | Institution | 60 |