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  1. Galleries
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  3. Astrophotography
  4. » The galaxy M33 Triangle

 
The galaxy M33 Triangle...

Astrofoto

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The galaxy M33 Triangle sent on November 20, 2012 (22:32) by _elio_. 46 comments, 12899 views.  [editors pick]

Tec 140@f5.6 su Avalon Linear stack di 24 pose da 600" - Campo Felice (AQ)


View High Resolution 2.6 MP  

157 persons like it: Adrimas51, Aerlaeron, Alberto Ghizzi Panizza, Alcoldrum, Alessandro Fiorillo, Alessandro Mattiello, Alessandro Sozzi, Alessio Dorigo, Alexcir, Aleziggio, Alma Rey, Altair70, Amata Ciro, Antonellig, Antoniobuccella, Aringhe Blu, Armando.lazzero, Artman17, Astrotrezzi, Bal, Batcaius, Battisti Luciano, Bececcomanuelo, Beppe Reda, Carlo Gandolfo - Spinotto, Casamoci, Caterina Bruzzone, Chiamami Aquila, Cico Salinas, Ciocca Sergio, Cobarcore, Cola, Cremonesesimone, Dadoini, Dalla Riva Daniel, DanieleIurissevich, DaviCava, Davide Falossi, Desmodavide, Diego Cuzzolin, Domenico Pasqualini, Duri, Dvd76, Eleonora Stancampiano, Elviro Inama, Emanuele Porcellini, Emilio Bertani, Engel-kappa, Enrico Boscolo, Enricor69, Eta Beta, Fabercom, Fabio F77, Fabioviti, Fabrizzio70, Falconfab, FasoAD, Fazrdg, Fop34, Forall, Francaren, Francesca Doria, Franco Buffalmano, Franklincampbell, Gaijin, Giamby86, Gianluca.vr, Giorgio Ardizzoni, Giorgio Guarraia, Giorgio Pirola, Giorgio48, Giorgioastro, Giovabubi, Giovanni Soligo, Giovanni17, Giovannini Italo, Giro, Giusppe, Gtabbi, Hamed2240, Herman, Indaco, Ivan Rassu, Janx, Jarmila, Joe Popò, Joxy10, Juza, Karateka, Leonardo670sv, Luca Alessi, Luca Buraglio, Luciano Scardigli, Lucio Torri, Luke88, Maia, Marco Lunardo, Marco Parola, Marco Tagliarino, Marco12, Mario Frattarelli, Marzio Bambini, Massimo Scorzoni, Massimo Soldani Benzi, Massimoeos, Maurizio Bistacchia, Maurizio Pietro, Maxhm, Meniero, Merak.dubhe, Michela Checchetto, Michele Cloch, Mowgli, NaCapaTanta, Nicolasv, Nicolatassis, Niki Starnino, Nolimits80, Oberdan, Panleo1, Papa Longines, Pasquale Giovine, Picco Paolo, Pidduxp, Price, Pulcisbaldo, Quellolà, Remedy, Riccardo Arena Trazzi, Riccardo Boldrini, Robbi, Robert1964, Robi98, Ruben.Reggiani, Scapinblak, Scuter1956, Seo, Simon Mikeli, Simone, Sky7, Solnze73, Spidergreen, Stefania Saffioti, Stefano89, StefanoConti, Sunny Cloud, Takayama, Tdd1978, Technophil, Tessi, Thm85, Tiziana57, Umberto Moroni, Valter56, Vincenzo Leccese, Volo, Zanzibar79




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avatarjunior
sent on December 09, 2012 (23:50)


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Grazie a tutti ragazzi per l'apprezzamento, fà sempre piacere... Eeeek!!!
viene chiamata Galassia del Triangolo perchè "appartiene" all'omonima costellazione...

In grandi linee ha ragione Francesco sulle tecniche di esecuzione, si usa un obiettivo-telescopio su montatura equatoriale motorizzata e autoguidata cioè con un altro telescopio in parallelo che tramite una ccd dedicata punta una stella e invia correzioni alla montatura per correggere gli errori di inseguimento.
Si riprendono molte immagini della stessa durata, poi si pretrattano con dark e flat per correggere rumore, vignettatura e/o sporcizia sul treno ottico, si sommano o mediano, e poi con una specie di ddp logaritmico si estrae il massimo del segnale sulle parti deboli cercando di non saturare le parti più luminose.poi si rifinisce con photoshop bilanciando e/o saturando il colore e aumentando il contrasto. In parole moooolto povere...Sorriso

Ricambio gli auguri di Francesco, e li giro a tutti voi!;-)

A presto!

Thank you all guys for the appreciation, makes always a pleasure ... wow!
is called the Triangulum Galaxy because it "belongs" to the homonymous constellation ...

Broadly Francis is right about techniques, using a lens-telescope on an equatorial mount that is motorized and self-guided with another telescope in parallel by means of a CCD dedicated a star tip and send corrections to the mount to correct the following errors.
Taking many pictures of the same length, then pretrattano with dark and flat to correct noise, vignetting, and / or dirt on the optical train, sum or median, and then with a kind of logarithmic ddp you extract the maximum signal on the weaker party trying not to saturate the parts luminose.poi it finishes with photoshop balancing and / or saturating thecolor and increasing the contrast. Put soooo poor ... :-)

Replacement wishes of Francis, and they turn to you all! ;-)

See you soon!

avatarsenior
sent on December 10, 2012 (0:28)


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Wooooow Sorriso

Wooooow :-)

avatarjunior
sent on December 10, 2012 (0:31)


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Mi accorgo solo ora di aver ricevuto l'editors pick Eeeek!!!

Grazie Juza, e grazie anche a tutti gli intervenuti nonchè ai "mi piace" ;-)

'notte...

I realize only now that it has received the editors pick wow!

Thanks Juza, and thanks to all participants as well as to "like" ;-)

'Night ...

avatarjunior
sent on December 10, 2012 (7:33)


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Elio. Sapevo che era difficile, ma da quanto hai scritto pare veramente impossibile! Il tutto poi magari, a -10 di temperatura. Rinnovo stupore e complimenti. Ciao.

Helium. I knew it was difficult, but from what you wrote it seems really impossible! The whole then maybe, at -10 temperature. Renewal of wonder and praise. Hello.

avatarsenior
sent on December 10, 2012 (8:34)


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Bellissima... complimenti;-)

Beautiful ... compliments ;-)

avatarjunior
sent on December 10, 2012 (8:39)


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No Francesco, più difficile a spiegarlo che a farlo! la difficoltà sta nel trovare le condizioni meteo buone e trovare cieli bui, ormai quasi introvabiliTriste
Questa l'ho fatta una notte che sono andato in camper a Campo Felice a circa 1600 metri slm, una stazione sciistica vicino Roma che ha un cielo "salvabile" e la temperatura estna era vivibilissima (intorno ai 7 gradi), ma il bello è che una volta preparata l'attrezzatura si avvia la sessione e fa tutto da sola, almeno fino a che il soggetto astronomico non arriva al meridiano, e quindi necessita altri 5 minuti di operazioni per far proseguire le pose. E nel frattempo osservo le bellezze del cielo col binocolone o nei telescopi di altri amici visualisti Cool
Con un pò di pazienza e costanza chiunque può riuscirci, considera che ho iniziato astrofotografia solo un paio d'anni fa Sorry

Grazie ancora per le belle parole ;-)

Cbr />
Thanks again for the kind words ;-)

avatarjunior
sent on December 10, 2012 (8:58)


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Impegno dedizione e passione : la formula per ottenere il meglio. Ciao.

Commitment dedication and passion: the formula to get the best. Hello.

avatarjunior
sent on December 10, 2012 (13:16)


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Giustissimo...;-)
Alla prossima, spero presto! Sorriso

Quite right ... ;-)
Until next time, hopefully soon! :-)

avatarjunior
sent on December 18, 2012 (0:04)


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complimenti!!!!


congratulations!!

avatarjunior
sent on December 20, 2012 (9:18)


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Grazie anche a te Michele ;-)

Thanks to you Michael ;-)

avatarjunior
sent on January 05, 2013 (6:25)


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davvero bravo ed interessantissime le spiegazioni

really good and interesting explanations

avatarjunior
sent on January 05, 2013 (23:51)


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Grazie Carlo, è un piacere ;-)

Thanks Charles, it is a pleasure ;-)

avatarsenior
sent on December 11, 2013 (1:21)


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C O M P L I M E N T I . . . . questa per me è Arte


CONGRATULATIONS. . . . This for me is Art

avatarjunior
sent on December 11, 2013 (15:13)


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Grazie Giamby, commento apprezzatissimo ma dire ad un astrofotografo che è un artista si rischia di offenderlo, siamo una razzaccia a cui piace rappresentare le bellezze del cielo senza stravolgerle con fotoritocchi artistici!:-P
Non è il caso questo, te lo dico solo per futura memoria, e ti ringrazio ancora per l'apprezzamento Sorriso

Thanks Giamby, comments appreciated but tell a astrophotographer who is an artist you are likely to offend, we are a razzaccia who likes to represent the beauty of the sky without upset them with artistic retouching! :-P
This is not the case, I'll just say for future reference, and I thank you again for the appreciation :-)

avatarjunior
sent on December 11, 2013 (15:18)


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Molto bella ! Ma che attrezzatura serve x questa genere di foto oltre alla macchina modificata?


Very beautiful! But this kind of equipment is used x photo over to the car changed?

avatarsupporter
sent on December 11, 2013 (15:23)


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perfetta! complimenti

perfect! compliments

avatarjunior
sent on December 14, 2013 (11:48)


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Ciao Marco, bhè oltre alla reflex modificata serve una montatura equatoriale e un telescopio, diciamo che non è un hobby economico purtroppo!
Grazie per l'apprezzamento.

Grazie anche a Stefano, si diciamo che è ben riuscita, purtroppo il fondo cielo è un pò rovinato, ci vorrebbe un cielo molto buio e tante ore di posa per renderla meglio, ma ci accontentiamo Sorriso

Hello Mark, well beyond the reflex serves a modified equatorial mount and a telescope, we say that it is not a cheap hobby unfortunately!
Thank you for your appreciation.

Thanks also to Stephen, you say it is successful, unfortunately the sky background is a bit spoiled, it would take a very dark sky and many hours of installation to make it better, but we are satisfied :-)

user10303
avatar
sent on May 26, 2014 (20:05)


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Immensa. Mi ci perdo dentro.
Un giorno mi piacerebbe arrivare a questi livelli.
Grandissimo.

Immense. I lose myself in it.
One day I'd like to get to these levels.
Very.

avatarjunior
sent on August 16, 2014 (11:47)


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Grazie Janx, onoratissimo delle tue parole ;-)

Thanks Janx, honored of your words;-)

avatarsupporter
sent on June 11, 2015 (22:14)


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Ho sempre amato lo spazio, questo tuo scatto è strepitoso, complimenti

I always loved the space, this is your shot amazing, congratulations


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