Articles
Articles published in the magazine Astronomía
Study of the Carrington solar cycle number 24 from a non-professional urban observatory
(Jorge Luis del Rosario, August 2021)
Comparison of the position measurements of Parhelio and Debrecen
(Javier Ruiz, April 2018)
Calculation of the resolution by measurements of the solar disk
(Javier Ruiz, April 2018)
The active region NOAA 12665
(Jorge Luis del Rosario, July 2017)
Comparison of the area measurements of Parhelio, Debrecen and SOON
(Javier Ruiz, March 2013)
Comparative between the areas measured with photography and by projection of the sun image on a template
(Jorge Luis del Rosario, February 2012)
Travel through the line
(Javier Ruiz, May 2011)
Evolution of the active region NOAA 11092-11101
(Jorge Luis del Rosario, October 2010)
Annual OAG solar H-alfa daily elemental program report (year 2009)
(Tòfol Tobal & Xavier Miret, Febrero 2010)
On the first group of the new cycle
(Javier Ruiz, May 2007)
The region NOAA 10923
(Javier Ruiz, September 2006)
The region NOAA 10898
(Javier Ruiz, September 2006)
The region NOAA 10756
(Javier Ruiz, June 2005)
The region NOAA 10743
(Javier Ruiz, March 2005)
The region NOAA 10720
(Javier Ruiz, March 2005)
The region NOAA 10069
(Javier Ruiz, October 2002)
What does 'Parhelio' mean?
(Neila Campos, April 2000)
