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astrokemp.com

amateur astronomy and astrophotography

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  • Nebulae
  • Galaxies
  • Star clusters
  • Photometry
    • Globular cluster Messier 3
    • M13 cluster compared to M3, pulsating stars
    • Iris Nebula and 2 young star objects (YSO)
  • Spectroscopy
    • Rotation curve of Messier 82 galaxy (spectroscopy)
    • Wolf-Rayet stars
    • Doppler shift in ejected material of the the Cat’s eye nebula
    • Doppler shift of star HD226868 orbiting black hole Cygnus X-1
    • Building a slit spectroscope – 3D printed Lowspec 3.0
  • Animations
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Category: Uncategorized

Lowspec 3.0 – building a DIY spectroscope

8 October 20238 October 2023
admin

The Lowspec project The Lowspec DIY spectroscope was designed by Paul Gerlach and placed on Thingiverse.com. The project is made around the idea to create a slit spectroscope on a budget. Commercially available slit spectroscopes generally cost in acces of

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animation pulsating stars in Messier 3

11 May 202211 May 2022
admin

This animation was build up from the Luminance frames taken for the photometry run which resulted in lightcurves of 15 pulsating RR Lyrea stars. In total 130 frames of 3 minutes each were used. For the animation 10 frames were

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pulserende sterren in bolhoop Messier 3

11 May 202211 May 2022
admin

de periode-helderheidsrelatie van pulserende RR Lyrea sterren Ik heb geprobeerd aan de hand van helderheidsmetingen van pulserende sterren in Messier 3 de afstand tot deze bolhoop te bepalen.Lang verhaal kort: het is niet gelukt. De periode-helderheidsrelatie voor deze sterren in

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