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Contains:  M 101, NGC 5457
Getting plate-solving status, please wait...
Magnificent Pinwheel, 


            Edoardo Luca Radi...
Magnificent Pinwheel
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Magnificent Pinwheel

Technical card

Dates:April 11, 2015May 10, 2015

39x600" ISO1600 bin 1x1
Baader Planetarium Ha 7nm: 16x900" -20C bin 1x1

Integration: 10.5 hours

Darks: ~15

Flats: ~20

Bias: ~35

Avg. Moon age: 21.30 days

Avg. Moon phase: 58.95%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details job: 639127

RA center: 14h 3' 12"

DEC center: +54° 21' 18"

Pixel scale: 0.667 arcsec/pixel

Orientation: 90.592 degrees

Field radius: 0.552 degrees

Resolution: 5031x3177


Here the latest result o the collaboration between me and Luigi Fontana :

H alpha enhanced M101

The RGB signal was caught by Luigi with his ODK 12" and an unmodified Canon 6D
Since the unmodified Canon is nearly blind to hydrogen like I've added the H alpha signal, caught with a Williams Optics FLT 110 with my SBIG ST2000XM and a Baader H alpha filter.

The composition was performed according to my latest tutorial

Version B Is the Annotated version with the PGC Galaxies
Version C Is the screenshot of the PixInsight Workspace at the end of processing with the full set of Icons used for procesing.

Ecco l'ultimissimo risultato della collaborazione con Luigi Fontana.

M101 integrata da H alfa

Il segnale RGB è stato acquisito da Luigi con una Canon 6D sul suo ODK da 12".
Dal momento che la Canon è praticamente cieca alle frequenze dell'Idrogeno, ho integrato l'immagine col segnale H alfa acquisito con la camera SBIG ST2000XM sul mio Williams Optics FLT 110 con un filtro H alfa Baader.

La composizione è stata eseguita seguendo il mio ultimo tutorial

Versione B: Versione annotata con le galassie PGC
Versione C: Uno screehshot del workspace di PixInsight con tutte le icone di processo utilizzate.



Edoardo Luca Radi...
License: Attribution-NonCommercial-NoDerivs Creative Commons


  • Final
    Magnificent Pinwheel, 


            Edoardo Luca Radi...
  • Magnificent Pinwheel, 


            Edoardo Luca Radi...
  • Magnificent Pinwheel, 


            Edoardo Luca Radi...

Sky plot

Sky plot


Magnificent Pinwheel, 


            Edoardo Luca Radi...

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Imagers of Italy