tag:blogger.com,1999:blog-45520879573879461402024-03-05T14:06:35.005+01:00L'universo di FlavioBenvenuti nel mio blog, io sono Flavio e sono un appassionato di astronomia....qui potrete trovare informazioni, news, foto e molto altro ancora.Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-4552087957387946140.post-32993342951822653002012-08-14T12:34:00.002+02:002012-08-14T12:34:20.678+02:00IL SOLE DI VALTER SCHEMMARICari lettori vi posto delle foto di un sole che non avete mai visto così, devo fare i complimenti a Valter per la perfezione di queste immagini.<br />
CARATTERISTICHE:<br />
Data: 26/7/12<br />
Attrezzatura: Rifrattore Lunt 60 Doublestack, filtro Ethalon, Fotocamera Canon Eos 450D, Barlow Celestron 2x.<br />
Iso: 100<br />
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<br />Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-86119966616468243472012-06-11T14:01:00.004+02:002012-06-11T14:18:04.501+02:00VIDEO DEL PASSAGGIO DI VENEREQuesto video è stato prodotto dall'APOD - NASA.<br />
<a href="http://apod.nasa.gov/apod/" target="_blank">CLICCATE QUI</a>Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-3568357094244483802012-06-07T19:42:00.004+02:002012-06-07T19:42:47.797+02:00VENERE TRA LE NUVOLEPubblico altre due foto del transito di Venere, visto dal monte Mottarone, 1200 slm, in una Venere è all'interno del disco solare (egresso interno) e nell'altra sta uscendo dal disco, quindi in (egresso esterno).<div>
Queste foto sono state scattate dal mio amico astrofilo Valter Schemmari, il decano dell'astronomia, di cui ho il piacere di pubblicare le sue foto.</div>
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Ricordo che miracolosamente è riuscito a scattare queste immagini, a causa del tempo non favorevole alla visione.</div>
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<br /></div>Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-58515698582089662862012-06-06T15:52:00.001+02:002012-06-07T19:46:30.288+02:00L'ALLINEAMENTO DI VENERE - SOLE E TERRACome promesso, questa mattina sono andato a vedere il famoso allineamento di Venere, di cui si è tanto atteso, vi mostrerò alcune delle migliori immagini fatte.<br />
Luogo: Torre del Lago Puccini;<br />
Strumentazione fotografica: Reflex Canon Eos 350 D;<br />
Attrezzatura: Telescopio Skywatcher 90/910, Astrosolar, oculari Super Plossl 25, oculare Super Plossl 6,3<br />
Tempi di esposizione: 1/500 - 1/640<br />
Iso: 400<br />
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<tr><td class="tr-caption" style="text-align: center;">ULTIMO CONTATTO</td></tr>
</tbody></table>Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-50233447006847793662012-06-05T22:53:00.001+02:002012-06-05T22:53:38.513+02:00THE MOONCari amici lettori, vi posto le foto della Luna fatte con la mia prima reflex Canon Eos 350 D, e Skywatcher 90/900 con filtro polarizzatore.<br />
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Presto vi posterò anche le foto del passaggio di Venere tra il Sole e la Terra.Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com1tag:blogger.com,1999:blog-4552087957387946140.post-17124977654927728422012-05-22T21:59:00.001+02:002012-05-22T21:59:28.867+02:00L'ATTIVITA' SOLAREPosto queste immagini, fatte da un mio amico astrofilo di cui ho il piacere di pubblicare grazie alla sua disponibilità, raffigura l'attività solare nei minimi dettagli.<br />
Caratteristiche tecniche:<br />
Verbania-Possaccio 17/3/10<br />
Reflex D Minolta Dyax 5D + PST40 Coronado <br />
Diam. Sole 1.390.000 KM, dimensione stimata della protuberanza = ALTEZZA 58.321 KM<br />
Lunghezza = 213.846 KM, spessore massimo = 48.600 KM<br />
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By Valter SCHEMMARI<br />
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Luogo: Balcone di casa (Viareggio)
Data: 18/05/2012
Ora: 23.30 (ora legale)
Strumento: Maksutov Cassegrein Skywatcher MC127 (D:127mm / f:1500mm),
Camera: Webcam Trust Spotlight Pro (filtro Baader IR-cut + Skyglow),
Frame catturati: 3600 a 30 fps (tempo ripresa 2 minuti),
Frame stacked: circa 2500 di 3600,
Focale di ripresa: F23.6 ottenuta con Celestron X-Cel LX 2x,
Elaborazione: Registax 6. <br />
By Leonardo Chiericoni.<br />
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<br /></div>Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-1813598817123120192012-05-12T18:13:00.000+02:002012-05-12T18:25:19.012+02:00IL MOSTRO SOLAREFoto fatte in modalità "afocale" con il mio telescopio rifrattore Skywatcher 90/910, oculare super plossl e filtro astrosolar. La tempesta solare che influirà negativamente sulla nostra terra creando "Blackout".<br />
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<br />Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-83816150337250437142012-04-29T13:01:00.001+02:002012-04-29T13:01:00.431+02:00Tasmin Archer - Sleeping Satellite<iframe allowfullscreen="" frameborder="0" height="344" src="http://www.youtube.com/embed/UuhDDx49TTw?fs=1" width="459"></iframe>Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0tag:blogger.com,1999:blog-4552087957387946140.post-85946049707479512302012-04-29T12:04:00.000+02:002012-04-29T12:48:56.327+02:00ASTROFOTOGRAFIA<br />
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<span style="font-family: 'Times New Roman', serif;"><i>L'astrofotografia,
o fotografia astronomica è la fotografia usata per riprendere corpi celesti. Le
tecniche astrofotografiche possono impiegare fotocamere digitali, sensori
elettronici, o fotocamere con pellicola chimica.<o:p></o:p></i></span></div>
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<span style="font-family: 'Times New Roman', serif;"><i>A causa
del movimento di rotazione terrestre da ovest verso est, la sfera celeste ruota
apparentemente in senso opposto da est verso ovest e con essa i pianeti e tutte
le stelle: tale situazione richiede al fotografo di compensare detto moto,
tramite appositemontature dette equatoriali, in modo da contrastare il moto apparente
ed il conseguente "effetto di mosso" presente nelle foto.<o:p></o:p></i></span></div>
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<span style="font-family: 'Times New Roman', serif;"><i>Nelle
riprese del cielo profondo si usano bassi ingrandimenti ma elevati tempi di
esposizione mentre per le foto ad alta risoluzione si usano altissimi
ingrandimenti ed esposizioni di solito più brevi. Esposizioni prolungate con
lunghe focali richiedono di conseguenza treppiedi molto solidi e meccaniche di
precisione.<o:p></o:p></i></span></div>
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<span style="font-family: 'Times New Roman', serif;"><i>Mentre
nella fotografia classica gli obiettivi fotografici sono caratterizzati da
focali contenute (da 18mm per i grandangolari ai 400 mm per i teleobiettivi) e
luminosità elevate (da basi di f/1,2 a f/5,6) per consentire riprese con tempi
di esposizione ridotti (tipicamente minori di 1/60 di secondo), nella
fotografia astronomica si usano tipicamente focali maggiori (con conseguenti
maggiori ingrandimenti) e luminosità minori (per ridurre i costi). Tutto ciò,
unito al fatto di dover riprendere oggetti piuttosto deboli, richiede tempi di
esposizione superiori al secondo.</i><o:p></o:p></span></div>Flastrihttp://www.blogger.com/profile/08024758044531148465noreply@blogger.com0