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| sent on May 25, 2018 (16:35) | This comment has been automatically translated (show/hide original)
Can you tell us the technical data of recovery? Puoi dirci i dati tecnici di ripresa ? |
| sent on May 25, 2018 (17:56) | This comment has been translated
I agree with the previous comment |
| sent on May 26, 2018 (7:53) | This comment has been automatically translated (show/hide original)
I resumed with a camera AltairAstro GP 224C mounted on Celestron CPC 9.24, shooting 240 seconds for a total of 1450 frames, processed with RegiStax6.
The evening was bad, but the desire to try the room, arrived 15 days and never used cause bad weather, had the best. ;-) Ho ripreso con una camera AltairAstro GP 224C montata su Celestron CPC 9.24, ripresa di 240 secondi per un totale di 1450 frame, elaborati con RegiStax6.
La serata era pessima, ma la voglia di provare la camera, arrivata da 15 giorni e mai utilizzata causa brutto tempo, ha avuto la meglio.  |
| sent on May 26, 2018 (11:56) | This comment has been automatically translated (show/hide original)
As the first test is not bad, sure with that tool you can do better (among other things is my dream in the drawer: When you decide to sell it....).
Luca, also remember that after about two minutes (120 seconds) Jupiter begins to show the rotation of its atmosphere, so your 4 minutes are also affected by this "blur" effect.
Unless you use a specific program (WINJUPOS) that realigns the surface details by using a virtual "derotation".
not give up.... Come prima prova non è malaccio, certo con quello strumento puoi fare di meglio (tra l'altro è il mio sogno nel cassetto: quando decidi di venderlo....).
Luca, ricorda anche che dopo circa due minuti (120 secondi) Giove comincia a mostrare la rotazione della sua atmosfera, quindi i tuoi 4 minuti subiscono anche di tale effetto "mosso".
A meno che non utilizzi un programma specifico (winjupos) che riallinea i particolari della superficie tramite una "derotazione" virtuale.
Non mollare.... |
| sent on May 26, 2018 (11:58) | This comment has been automatically translated (show/hide original)
Can you tell us if the 1450 frames are the total ones or the ones selected for stacking? In This case how many were the totals? Puoi dirci se i 1450 frames sono quelli totali o quelli selezionati per lo stacking ? In questo caso quanti erano i totali ? |
| sent on May 26, 2018 (13:30) | This comment has been automatically translated (show/hide original)
Thank you so much for the advice. It was a really bad evening with wind and continuous passages of clouds, but the urge to try was too much.
1450 are total frames, those taken for stacking have been reduced to about 600.
Grazie mille per i consigli. Era una serata veramente pessima con vento e continui passaggi di nuvole, ma la voglia di provare era troppa.
1450 sono i frames totali, quelli presi per lo stacking sono stati ridotti a circa 600.
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| sent on May 26, 2018 (14:39) | This comment has been automatically translated (show/hide original)
So 1450 divided by 240 seconds that means you were working on 6 frames per second: too little. You have to increase the acquisition speed and a system is to reduce the size, so all that black sky around you do not need. On the acquisition program you use choose a format smaller than the standard, type 640x480 or better 320x240: it will be more difficult to keep the planet in the middle of the screen but you will have a higher speed, which will give you at least 7/8000 frames in 2 minutes. I recommend no more than 2 minutes/2 minutes and a half otherwise the planet runs..... Allora 1450 diviso 240 secondi vuol dire che stavi lavorando a 6 frames al secondo: troppo poco. Devi aumentare la velocità di acquisizione ed un sistema è quello di ridurre il formato, tanto tutto quel cielo nero intorno non ti serve. Sul programma di acquisizione che utilizzi scegli un formato più piccolo dello standard, tipo 640x480 o meglio 320x240: sarà più difficile mantenere il pianeta al centro dello schermo ma avrai una velocità maggiore, che ti darà almeno 7/8000 frames in 2 minuti. Mi raccomando non più di 2 minuti/ 2 minuti e mezzo sennò il pianeta gira..... |
| sent on May 26, 2018 (18:39) | This comment has been automatically translated (show/hide original)
Time permitting, I'll try again.
In fact I had left set the format more
wide.
Marco tips The use of a Barlow lens and if you do, can you tell me which one?
Thank you. Tempo permettendo, ci riprovo.
In effetti avevo lasciato impostato il formato più
ampio.
Marco consigli l'uso di una lente di barlow e se si, sai indicarmi quale?
Grazie. |
| sent on May 27, 2018 (17:19) | This comment has been automatically translated (show/hide original)
You can't, you have to use a Barlow. Know that your telescope achieves optimum sampling (with that CCD camera that has 3.75 micromillimeters of the side) at F/20-F/22, so with a 2x Barlow you're fine. I recommend that it be apochromatically. If you go on the net and type "Barlow APO 2x" you find several from 50 euro up. Or if you want to save money look at the used market. Non puoi, DEVI usare una barlow. Sappi che il tuo telescopio raggiunge il campionamento ottimale (con quella camera CCD che ha i pixel di 3.75 micromillimetri di lato) a f/20 - f/22, per cui con una barlow 2x sei a posto. Mi raccomando che sia apocromatica. Se vai in rete e digiti "barlow apo 2x" ne trovi diverse a partire dai 50 euro in su. Oppure se vuoi risparmiare guarda nel mercatino dell'usato. |
| sent on May 27, 2018 (18:19) | This comment has been automatically translated (show/hide original)
Very kind! thanks again. Gentilissimo! Ancora grazie. |
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