Saturday, 16 November 2013

A plane crossing the Sun

A plane flying over the European Space Astronomy center, ESAC, in Madrid, was captured in this h-alpha image of the Sun, on 06-Nov-2013.


The images were acquired with a Coronado SolarMaxII-90 BF30 from the ESAC solar observatory Helios, by Elena Leiva. Real time solar images (weather permitting) are posted in http://www.sciops.esa.int/SB/VENUSEXPRESS/include/sun_monitor.html.

Sun explosion

The Sun delighted us on 06 November 2013 with a magnificent explosion. The material was ejected from a region close to the active sunspot, as shown on this h-alpha sequence of images.



The following image is a false colour quick look of one of the observed objects: Abell370. A cluster of galaxies at 4775 Mly.

2013-08-09/15: Green Flashes from Sopelana, Bizkaia

The following green flashes were captured on 2013-08-09 and 2013-08-15 from Sopelana, Bizkaia with HDD video. 

It is a phenomenon between  fact and fiction popular by Jules Verne novels and northern legends. Actually it is an optical phenomenon caused by the atmospheric refraction of the last Sun rays before sunset. A short documentary describing both the history and science of this event is in the following video. 

This documentary of BBC Coast S07 E01 (on air on 2012-05-13) incoporates the Green Flash that I captured from the same place on 2008-08-17 to illustrate the observation of the event from the Western Islands, UK.

Images of M 13, M 51 and M 11 taken with the new club refractor

On Saturday, June 1, 2019, several club members gathered in my backyard for an astrophotography night. We used the new 80 mm refractor, that...