Sferoj - series of Esperanto SF books. Article “Sferoj” in Esperanto Wikipedia has 3.1 points for quality (as of July 1, 2025).
Since the creation of article “Sferoj”, its content was written by 14 registered users of Esperanto Wikipedia and edited by 14 registered Wikipedia users in all languages.
Sferoj is on the 136th place in local ranking of books on Esperanto Wikipedia in all the time.
The article is cited 29 times in Esperanto Wikipedia and cited 29 times in all languages.
The highest Authors Interest rank from 2001:
The highest popularity rank from 2008:
There is 1 language version for this article in the WikiRank database (of the considered 55 Wikipedia language editions).
The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).
| Best Rank | Esperanto: #1325 11.2020 |
Global: #1968675 01.2008 |
| Best Rank | Esperanto: #1364 11.2013 |
Global: #290379 09.2004 |
On 21 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Alysa Liu, Eric Dane, 2026 Winter Olympics, Rebecca Gayheart, Johannes Høsflot Klæbo, Wuthering Heights, amyotrophic lateral sclerosis, Andrew Mountbatten-Windsor, John F. Kennedy Jr..
In Esperanto Wikipedia the most popular articles on that day were: Enigmo, Manuel Lombo, Jardinópolis (San-Paŭlio), La hundo de Flandrio, Sterko, Taŭrino, Esperanto, Placo Hispanio (Madrido), Colina (San-Paŭlio), Zara Larsson.
The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information
$$Quality=1/c∑↙{i=1}↖c nm_i-RS=1/5(4.73+0+6.25+4.76+0)$$
where:
The results of the calculations may be slightly different because of rounded values of normalized metrics in formulas
