La pasada noche saqué el telescopio a la azotea para aprovechar la clarita (hay mucho mono de estrellas) y decidí apuntar a Jupiter para comprobar el estado de la atmósfera. Pude comprobar que había tránsito de sombra sobre júpiter y que me permitiría enfocar mejor la imagen. Así que me llevé un tiempo sacando vídeos hasta conseguir algo medio decente. La atmósfera no estaba realmente buena, estaba mediocre tirando a buenecilla, por lo que decidí no cambiar de objetivo. Miré que hasta las dos de la madrugada no vería la mancha roja transitar por el hemisferio visible, pero lo que más temía se llevó a cabo. Cuando el planeta atravesó el meridiano y tuve que cambiar la montura me dí cuenta que no podía volver a enfocar a la perfección, parecía que la atmósfera había cambiado, o pasado el meridiano el aire se movía más, o al mover e telescopio el aire interior decidío reorganizarse durante muchísimos minutos.
El equipo, el de siempre, el celestron 8", powermate x5, qhy5 y filtro IR. Las tomas son de unos 100 segundos con ganacia 75% y exposición de 50 ms.
De la decena de imágenes que pude sacar durante la noche os dejo la más vistosa. He estado trasteando en registax distintas configuraciones en la pestaña de wavelets para sacar diferentes resultados.
Se ve la sombra y al satélite Io delante de Júpiter. Al principio pensé que el satélite estaba muy deformado por la captura de la imagen, pero al ver esta foto de Damian Peach en internet me dí cuenta de que realmente había capturado los "colores" de Io. Y es que lo que consigue Damian Peach es maravilloso .
A tenor de las imágenes encontré unos comentarios sobre los resultados de Damian, que son fruto de la constancia y el trabajo metódico.
Este mensaje lo leí en un foro.
"Being in email contact with Damian quite a lot I can tell you some things and answer some of your questions.
Damian has stated on several occassions that he is not interested in forum life and it should be noted that he is not a member of any public forum. There are lots of reasons for his thinking and that you have to respect.
Excellent seeing helps to produce excellent images. His processing techniques are a little different from the likes of Dave Tyler, Pete Lawrence, Don Parker, Anthony Wesley, Chris Go, Trevor Barry and myself just to name a few. Some of Anthony's images last year from Exmouth WA were the equal of any planetary imager on the planet ever. (google Bird's astronomy an look for 30 August under Jupiter). I have it on good authority from Damian that the seeing at Selsey is of a very high standard. With that in mind you can see why he gets a lot of crystal quality to his images. What most people think of as great seeing is in reality 7/10 at best. Perfect seeing is where the planet does not move at all during any colour run. Only seen that once in the last 7 years myself.
Damian is a collimation nut. I thought I was obsessive but he is way more than I am. If I got that sort of seeing most of the time I would be too. Good collimation is essential but fantastic collimation is always tough to get right.
Damians C14 is not hand picked. There is a rumour around the net that he hand picked his scope and this is simply not true. He got the same sort of selection that anyone else gets. You buy the scope and it rocks up at the supplier and you pick it up. All C14's that were made in the States were of a high calibre, these were hand figured in the final finish. I cannot state one way or the other regarding those made in China.
Damian like Don Parker has been at this game for a long time. I have been doing planetary imaging since 2004 but Damian has been at this since 1998. That is 13 years of practice and processing runs. It is little wonder why he is still at the top of his game.
So the next time you are wondering why he gets such great images just think about the above. Practice and persistence makes perfection."
Damian has stated on several occassions that he is not interested in forum life and it should be noted that he is not a member of any public forum. There are lots of reasons for his thinking and that you have to respect.
Excellent seeing helps to produce excellent images. His processing techniques are a little different from the likes of Dave Tyler, Pete Lawrence, Don Parker, Anthony Wesley, Chris Go, Trevor Barry and myself just to name a few. Some of Anthony's images last year from Exmouth WA were the equal of any planetary imager on the planet ever. (google Bird's astronomy an look for 30 August under Jupiter). I have it on good authority from Damian that the seeing at Selsey is of a very high standard. With that in mind you can see why he gets a lot of crystal quality to his images. What most people think of as great seeing is in reality 7/10 at best. Perfect seeing is where the planet does not move at all during any colour run. Only seen that once in the last 7 years myself.
Damian is a collimation nut. I thought I was obsessive but he is way more than I am. If I got that sort of seeing most of the time I would be too. Good collimation is essential but fantastic collimation is always tough to get right.
Damians C14 is not hand picked. There is a rumour around the net that he hand picked his scope and this is simply not true. He got the same sort of selection that anyone else gets. You buy the scope and it rocks up at the supplier and you pick it up. All C14's that were made in the States were of a high calibre, these were hand figured in the final finish. I cannot state one way or the other regarding those made in China.
Damian like Don Parker has been at this game for a long time. I have been doing planetary imaging since 2004 but Damian has been at this since 1998. That is 13 years of practice and processing runs. It is little wonder why he is still at the top of his game.
So the next time you are wondering why he gets such great images just think about the above. Practice and persistence makes perfection."
He probado varios programas para alinear y seleccionar las mejores imágenes, pero no he encontrado uno que seleccione completamente las mejores imágenes sin meter alguna que yo descartaría. Así que empiezo a creer que la selección manual es en el fondo a mejor opción, aunque conlleve muchísimo tiempo. De los que probé, registax, autostakker, iris ninguno descarta imágenes con pequeños desperfectos.
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