Tag: moon

Aldebaran-okkultáció 2015. október 29.

MC 102/1300-as állványról Canon 1100D-vel dolgoztam.

Hold (raw x 30)

Hold (raw x 30)

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold

2015.10.29. Aldebaran, Hold

 2015.10.29. Aldebaran, Hold (kb. 20 perc egymáson)

2015.10.29. Aldebaran, Hold (kb. 20 perc egymáson)

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RPi Moontrail – Hold-csíkhúzós

Moontrail with rpi

Moontrail with rpi

After quite a few successful attempts at imaging trails using rudimentary equipment, I decided to put my Raspberry Pi B+ and its camera to work and image a moontrail.

Past attempts include a set of sunrises at both solstices and at equinox, some sunsets, an analemma and some startrails. For these I used a Canon A800 enhanced with CHDK or a FujiFilm HS20EXR unmod. The CHDK was needed to access otherwise unaccessible options like manual focus, manual shutter speed and… well, an intervalometer. But this time a cron job did the work on my little buddy, the pi.

Below I describe the process in detail which lead to the final pictures. If you wish to skip it, click here.
(tovább…)

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Moon and Sun: DSLR or webcam?

DSLR vs. webcam imaging the whole Moon

DSLR vs. webcam imaging the whole Moon

I had this dilemma: what to use to image the whole disk of the Sun or the Moon? Make full disk pictures with my DSLR – 60 frames tops – or record many little videos with my webcam and put the mosaic pieces together? On one hand it is how much time I am willing to invest and on the other, what output quality I am expecting.

The tech

SCOPE: I used my 150/750 on the motorized EQ3.
DSLR: it is a Canon 1100D (also known as the EOS Rebel T3), unmodified hardware but enhanced by Magic Lantern (thanks guys :) ). The sensor is a 12.20 Megapixels CMOS APS-C (pixel size = 5.2 μm), capable of outputting 14 bits deep raw (cr2).
WEBCAM: it is a Scopium webcam, 640×480 pixels 8 bits sensor, max framerate is 30 fps, video is recorded in raw mode (pixel size = 5.6 μm). (tovább…)

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Jól kalibrált monitoron mindegyik számnál elkülönülő árnyalat látszik. Ha mégsem látszanak, akkor a megjelenített képek színhiányosan rajzolódnak ki. A monitort valószínűleg kalibrálni kell.

You should see distinct shades for each number. If those shades are not clearly visible, the displayed pictures will lack accuracy. Your display most likely needs to be calibrated (brightness, gamma, contrast etc.).