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Triple star system b Persei
b Persei (which is not the same as beta Persei, Algol) is an exciting triple star system with a hierarchical structure. The main part of...
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Majadahonda Astronomical Observatory
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Admin
- 18 oct 2022
- 2 min.
Is there life on Europa, Jupiter's icy moon?
How to help as an amateur to answer this question. Europa is, along with Io, Ganymede and Callisto, one of Jupiter's four largest...
2 visualizaciones0 comentarios
Admin
- 18 oct 2022
- 2 min.
Occultation of a star by the asteriod Egeria
In January 2021, a double (actually triple as we shall see) star was occulted by the asteriode Egeria. This post explains my experience...
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Admin
- 11 ago 2022
- 1 min.
Measuring the rotation period of 15 asteroids
The Minor Planet Center published in the bulletin "volume 49, number 2" corresponding to the period April to June 2022, a work of the...
4 visualizaciones0 comentarios
Admin
- 6 ago 2022
- 4 min.
AllSky Portable
The summer holidays are a good time to undertake new astronomy-related projects that are adapted to the circumstances of being on the...
28 visualizaciones0 comentarios
Admin
- 12 abr 2022
- 1 min.
AAVSO Observer Award
Many thanks to the AAVSO for their recognition of the report of more than 1,000 photometric measurements with the PEP (Photoelectric...
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Admin
- 7 abr 2022
- 1 min.
Zubenelgenubi occultation by the Moon
Occultations of stars by the Moon are of interest in astronomy for measurements of lunar topography, measurements and even discovery of...
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Admin
- 4 abr 2022
- 1 min.
About eclipsing binary systems
In this video you will see an eclipsing binary star system like you have never seen before ... I hope you enjoy it. It was prepared for a...
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Admin
- 8 feb 2022
- 1 min.
Potentially hazardous asteroid captured on Earth approach
Asteroids are classified as potentially hazardous when they have a minimum distance of intersection of their orbit with the Earth of less...
3 visualizaciones0 comentarios
Admin
- 5 ago 2021
- 2 min.
Complete renovation of the dome
During the pandemic confinement, I took the opportunity to undertake a major overhaul of the dome. The improvements I had to address...
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Admin
- 9 abr 2021
- 2 min.
An astronomical observatory on a window ledge
I am fortunate to have a large terrace at home where I have been able to install two observatories: a rotating dome and a clamshell dome....
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Admin
- 19 ene 2021
- 1 min.
The solar cycle 25 advances
The solar cycle 25 started in 2020 and a maximum of activity is expected for 2025. In January 2021, specifically on the 16th, a new group...
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Admin
- 7 ene 2021
- 1 min.
AAVSO award
I am very grateful to the AAVSO (The American Association of Variable Star Observers) for recognizing my contribution of over 500...
7 visualizaciones0 comentarios
Admin
- 23 dic 2020
- 1 min.
The Great Conjunction of Jupiter and Saturn
On December 21, 2021, the Great Conjunction of Jupiter and Saturn took place, expected by all the fans, but illusion truncated at least...
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Admin
- 1 sept 2020
- 1 min.
Digital Setting Circles
I have added in the "Projects" section, a new work DIY. The goal is to make Digital Setting Circles that will improve the visual...
106 visualizaciones1 comentario
Admin
- 25 ago 2020
- 1 min.
Transit of the ISS by the Sun
Thanks to the helpful service of CalSky Alerter (https://www.calsky.com/) I received an email informing me that the ISS could be seen...
12 visualizaciones0 comentarios
Admin
- 18 ago 2020
- 1 min.
Occultation of Venus by the Moon
On June 19, 2020, the Moon occulted Venus for more than an hour. The trajectory of both along the ecliptic crossed. This phenomenon is...
15 visualizaciones0 comentarios
Admin
- 17 ago 2020
- 2 min.
The thousand faces of the full moon
You might think that when we look through the telescope to see or photograph the full moon we always see the same image, but the fact is...
9 visualizaciones0 comentarios
Admin
- 26 may 2020
- 1 min.
Venus and Mercury in the evening after the conjunction
The conjunction of Venus and Mercury took place this month of May 2020 at 9:44 local time, Venus passing through the north of Mercury at...
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Admin
- 5 abr 2020
- 1 min.
Venus in conjunction with the Pleiades
Every year Venus passes close to the Pleiades cluster (M45), but only every 8 years a perfect conjunction is produced, crossing the...
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