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Hi Miguel, I've played around with background spectra when tried to use it for calibration. One that you could do easily is processing any fainter target A-star spectra with AND without 'Sky not removed" checkbox at ISIS 2. General tab, then just subtract one from the other (ISIS Tools, one of ...

Calibration module has arrived and tried, using it from now.

Thanks Robin, meanwhile I've also found a similarly cheap USB relay here:

http://www.conrad.hu/conrad.php?name=Pr ... pid=393905

From here it's only cabling work - that we amateurs do every day.

Quick Update:
I'm just through the lamp pdf, there are already 12V input for remote control, only the two USB - 12V switching must be resolved.
Assume already have such on device the market, interesed only where to get from.

Hi Miguel, I've got some material of NovaCyg on Fri (cloudy) + Sat evening, managed to try a Hg lamp on Sat (surprised later it's not a Ne lamp), using A4 papers as diffuser (ambient light needed too much exposure). Still learning the workaround in ISIS for Hg, looks that He/Ar hardwired by code for...

Robin, good to know there are existing solutions for remote lamp! Miguel, thank you for the advice, some solution for a cal. light will be my next step then! So far my spectra has already been calibrated by Balmer + telluric lines of the ref. star in ISIS as you mentioned, understanding it's not the...

Hi Miguel, yes the mount + optics is really cost effective (was no reason to go with lower aperture when bought it), maybe what I'm suspecting is that some of the f/4 is cut on the guide module (Alpy is optimized for f5). Regarding calib lamp: I've read it now, and haven't found remote control possi...

Hi Miguel, Thanks, I've already collected some Alpy spectra including yours to build some change diagram, good that more of us have similar instruments! Wish I had a scope in Spain, the satellite picture is usually so nice over there when looking at sat24 while the hope of a clear sky is lost here :...

Hi, just introduced myself, now sending the very first spectra Nova Cyg 2014 and being curious whether it's ok for the database (+ will have Z And and CI Cyg of the same night): _novacyg_20140707_067_psomogyi.png I had to write a script to solve DATE-OBS field because the Orion studio puts there a d...

Hi Forum, My name is Peter Somogyi, an amateur from Hungary. I was born in 1976, graduated as Programmer Mathematician and working permanently as a Software Developer (for 10 years in Linux). Near my job, I've gained interest slowly and undeniably in astronomy since 2009, doing deepsky photography b...