Monthly archives: június, 2017

M27 at F/13

M27 Dumbbell – Canon 1100Da @ MC 102/1300

F/13 is not the opening at which one wants to photograph deep sky objects. But I wanted to field test the guiding I recently got. So I set up the HEQ5 with the Canon 1100Da @ MC 102/1300 on it, and let it go for the stars with 4-5-6 minutes exposures. And … it worked. However, there is a big but: effing Microsoft Windows decided it could not wait with the update, so under the starry sky, I was looking at the don’t turn off your computer screen, running on precious battery power. And I paid for Windows. After Africa, this is the second time the effing windows update effed me while on the field. So 6×4 min, ISO 800, Dângău Mare, Cluj.

M 27, NGC 6853 [planetary nebula in Vul] Dumbbell-nebula, Súlyzó-köd, Nebuloasa Dumbbell 7.4m ø8′ [wiki] [simbad]

 

raw

raw

raw curved

raw curved

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Planetary images from the long weekend

ε Lyrae

Using the N 150/750 on the HEQ5 and the Scopium webcam, I obtained the following frames. Do note that planetary imaging means a technic – many frames, a 1-2 minutes long video of short frames, stacked -, essentilly lucky imaging, so planetary does not mean a target type. Just sayin’ :P

The clouds obscured the occultation of Porrima, so next time.

(tovább…)

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From a semaphore error to autoguiding

Last night I tested an old CCD Labs Q-Guide camera as an autoguider solution. I got the camera from AȚ (thank you :) ) but it came with an unexpacted “semaphore error” message, which rendered it useless. It turned out the firmware was damaged and needed to be reflashed. I found some ideas here, but not the solution itself, which started to come from here, though it was still miles ahead. Worth mentioning the answers given by QiuHY are rather cryptic (tending towards useless), more like from an oracle than a tech guy – and I’m not a believer. A good indicator of just how cryptic: only a month has passed and I already cannot find the best answer, only that it included CySuiteUSB program and a guide in which order to flash what.

So I took some test photos with the Canon 1100Da, N 150/750 on the HEQ5 setup, 4 minutes subs. Ten for the M13 globular cluster, and six for the M57 Ring Nebula. Each at ISO 100 – not that far from the city center (Bortle scale 6-7 if not 8 – better to the north).

M13 test

M57 test

M57, second processing

M57, 3rd processing

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Some Solar System

Sunspot 2661

A few clear hours, in conjunction with my free time, allowed me to take some photos: the Sun, the Moon, Jupiter and Saturn. I still could not find Enceladus. The setup: N150/750 and MC 102/1300 on the HEQ5, Scopium and CCD Labs Q-Guide webcam.

 

(tovább…)

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Days Go By – with a raspberry pi

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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.).