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Monthly archives: február, 2019

Messier 67 – 2019-02-23

M 67

From within the city, by the rising moon, I acquired 30×30 seconds, ISO 3200 of the M67. The gear was the usual, N 150/750, Baader MPCC Mark III, Canon 1100D mod, HEQ5, with the IDAS LPS D2 filter. There was light, lamps and a glowing sky (the Pleiades, high up, barely visible to the naked eye) from all over the place, so this is the best I could squeeze out of the conditions.

It is not a remarkable photo target, but the cluster is well studied. It is about the age of the Sun, one of the oldest open clusters known, and scientists think it has lost ninety percent of its mass, and currently has “only” 1400 solar masses. In comparison, the Rosette Nebula is estimated to have 10 thousand solar masses.  M67 is at around 2600-2900 light years away.

M 67, NGC 2682, Mel 94, Col 204 [open cluster in Cnc] M. 67. Fine open cluster, typical of Class II. 6.9m ø29′ [wiki] [simbad] 750mm  (tovább…)

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Jupiter, Venus early 2019

With the ADC and ASI 224MC.

2019.02.16. Jupiter

2019.02.16. Jupiter

2019.02.18. Jupiter

2019.02.18. Jupiter

2019.02.20. Jupiter

2019.02.20. Jupiter

2019.02.20. Venus

2019.02.20. Venus

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A walk on memory lane – dselena

Working with Renesas chips and the GUIX framework made me take a walk on  memory lane, a program I wrote almost two decades ago.

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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.).