spectro-aras.com

Hi Francois, Thanks for the comments. I reworkd my spectra and below the result. First one is from July 26 and second one from July 31. I also added a 1D fit file and would be glad if somebody could check them and tell me if they are correct. T_Crb_300s_LISA_1000mm-0011_BDF_NHSA_20220726_16b.jpg T_C...

Hi, Finally after solving my Plate Solving problem, perhaps due to the bad light pollution which has developped inmy place I was able to get a T CrB spectrum. I do not know if it is of any scientific value but anyhow I am glad I was able to get a Spectrum again. 9 images with 300 seconds exposure ti...

mains power in new zealand is 240v 50 hz. but the AA-battery powered micro inverter outputs about 120v at very high frequency, circa 15kHz. I successfully installed it on the spectrograph and used it a couple of nights ago. if you remove the capacitor you will probably be emitting some broadband RF...

Hi Hamish,
Interesting. What is your main power voltage in your house ?

110V or 220V ?

I ask because at 120V AC all my starter lamps blow up, but I use them without the capacitor. My starter lamps glow at a voltage of about 75V which I get using a resistor.

Hi Rainer, Thanks a lot for sharing this, And sorry for my late reply, it’s a very busy week :) I’ll have a look at your data asap! Thanks again and clear skies, Simon Hi Simon, What do you think about the capabilities of the uncooled ASI 174MM ? I think it is quite a noiseless camera. As I wrote s...

Ernst Pollmann wrote:Hi Rainer.
unfortunately the spectral resolution is too low and hence the central absorption in Halpha not visible.

Ernst

Hallo Ernst,

Thank you and understood but even so it was an interesting exercise.

Hi,

Very very interesting

The only way to show it was using the code

Hallo Ernst, I just was able to shoot a series of 6 images with 300s exposure time. LISA spectrograph @23µm slit on a TOA 130 with a 0.6X reducer. Processed in PixInsight with Bias, Dark and Flat and then processed in RSpec. https://rainerehlert.com/000_LISA/28_Tau_300s_LISA_600mm-0006_BDF_NHSA_2022...

Hi,

I am trying to answer a message from Ernst Pohlmann and attach a JPG file but everytime it kicks me out and wants me to log in new.

Tried it more then 6 times unsuccesfully.

What is wrong ?