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2001 years Moon


Object : Moon
Object size : 0.5 degree
Object magnitude : -
More to know : Wikipedia:
https://en.wikipedia.org/ wiki/ Moon

Full Moon

Full Moon
Date : 2001 May
Time (UT) : ?
Mount : EQ4, motor
Lens/telescope : MTO Rubinar 4" 1000 mm f/10. This is a very advanced lens, but it has some problem with internal reflections.
Corrector/Barlow : Pentax 2x Pentax tele extender
Field (FOV) : 0.3x0.3 degree, before cropping
Filter : none
Camera : Spectra Source Instruments HPC-1, CCD 1024x1024
Camera from Stockholm University
Exp. time : 0.01 seconds.
Image process tool : Matlab, All image processing done by my own developed Matlab routines.
Processing : resize, level, cal dark, mosaic from four images
Weather :
Site : Sweden, Stockholm, Midsommarkransen. Bortle 9
Comment : The rays from the crater Tycho are clearly seen, up to 2000 km length. The Moons diameter is 3476 km.
More to know : Wikipedia:
https://en.wikipedia.org/ wiki/ Moon

Half Moon

Half Moon
Date : 2001 May
Time (UT) : ?
Mount : EQ4, motor
Lens/telescope : MTO Rubinar 4" 1000 mm f/10
Corrector/Barlow : Pentax 2x tele extender. This extender is of very old construction, maybe 1960s. It has the Pentax M42 thread which make it very sturdy.
Filter : none
Camera : Spectra Source Instruments HPC-1, CCD 1024x1024
Camera from Stockholm University.
Started to use this camera in the middle of 1990s and it was my introduction to digital photographing. Very expensive at that time.
Exp. time : 0.01 seconds.
Image process tool : Matlab, All image processing done by my own developed Matlab routines.
Processing : resize, level, cal dark, mosaic from four images
Weather :
Site : Sweden, Stockholm, Midsommarkransen. Bortle 9
Comment : The craters are more easy to see (the shadows) when the moon is in half phase.
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