Hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Great Cluster in Hercules  ·  M 13  ·  NGC 6205  ·  NGC 6207
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M13 Globular cluster HDR, 



    
        

            Andrea Pistocchini - pisto92
M13 Globular cluster HDR
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M13 Globular cluster HDR

Technical card

Imaging telescopes or lenses: Tecnosky Apo triplet 80/480

Imaging cameras: Canon 450D Modded

Mounts: Skywatcher NEQ6 PRO

Guiding telescopes or lenses: SkyWatcher 70/500

Guiding cameras: QHY5 II

Focal reducers: TecnoSky Spianatore/riduttore 0,8x

Software: PixInsight 1.8  ·  Photoshop CS6

Filters: Hutech IDAS 2" LPS D1


Dates:May 16, 2015

Frames:
3x120"
18x420"

Integration: 2.2 hours

Avg. Moon age: 27.70 days

Avg. Moon phase: 3.74%


Basic astrometry details

Astrometry.net job: 683789

RA center: 16h 41' 45"

DEC center: +36° 27' 18"

Pixel scale: 1.403 arcsec/pixel

Orientation: 89.197 degrees

Field radius: 1.097 degrees


Resolution: 620x457

Locations: Lake Delio, Maccagno, Varese, Italy

Description

Ammasso globulare in Ercole (M13) senza troppe pretese :) Attraverso la tecnica dell'HDR è stato possibile desaturare il nucleo, in modo da non avere zone bruciate. Infatti sono stati fatti 3x120 sec per il nucleo e 18x420 sec per il segnale debole delle stelle esterne. Ho usato il Tecnosky 80/480, quindi ho preferito croppare l'immagine per far risultare meglio l'ammasso :) Canon 450D modificata.

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Globular cluster in Hercules (M13) with the HDR technique :) I have taken 3x120 sec for the core and 18x420 sec for the weak signal of the external stars. I used the Tecnosky 80/480, so I preferred to crop the image to see better this DSO:) Canon 450D modified.

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M13 Globular cluster HDR, 



    
        

            Andrea Pistocchini - pisto92