Hi,
I am starting again with my LISA and would like to know how exact does the 6599 Å line has to be at the position 2.716 mm from the center to the right.
I have a QSI 520i on my LISA and that gives me a calculated location of 1167 pixels or 367 pixels from the center to the right side of the image.
The position of the 6599 Å line ( mentioned in the LISA user guide) is at the moment at 1164 pixels. Calibrating with the integrated NEON lamp does not give me a good calibration on Vega for example.
Does ambient temperature play a roll in this case ?
Thanks for any tips and regards Rainer
LISA and H-alpha line
-
- Posts: 135
- Joined: Thu Sep 29, 2011 9:36 pm
LISA and H-alpha line
regards Rainer____Observatorio Real de 14_____MÉXICO_____N 22° W 101°
-
- Posts: 1931
- Joined: Mon Sep 26, 2011 4:41 pm
- Contact:
Re: LISA and H-alpha line
Hi Rainer,Rainer Ehlert wrote:Hi,
Calibrating with the integrated NEON lamp does not give me a good calibration on Vega for example.
If your LISA only has the neon lamp I would recommend updating it to use the NeAr RELCO lamp.
http://www.spectro-aras.com/forum/viewt ... f=8&t=1091
That has many more lines, specially at the blue end and will give you a better calibration. Software like ISIS, Spcaudace, Demetra will find the lines for you automatically making the calibration easy
Cheers
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
http://www.threehillsobservatory.co.uk
-
- Posts: 135
- Joined: Thu Sep 29, 2011 9:36 pm
Re: LISA and H-alpha line
Robin Leadbeater wrote:Hi Rainer,Rainer Ehlert wrote:Hi,
Calibrating with the integrated NEON lamp does not give me a good calibration on Vega for example.
If your LISA only has the neon lamp I would recommend updating it to use the NeAr RELCO lamp.
http://www.spectro-aras.com/forum/viewt ... f=8&t=1091
That has many more lines, specially at the blue end and will give you a better calibration. Software like ISIS, Spcaudace, Demetra will find the lines for you automatically making the calibration easy
Cheers
Robin
Hi,
Thanks Robin. Now that you mention it I remember that I played around with a Fluorescent lamp starter many years ago. I will try to repeat that exercise. I have a lot of those laying around here even already with a resistance in order to connect them to 120 Volt AC.
Rainer
regards Rainer____Observatorio Real de 14_____MÉXICO_____N 22° W 101°
-
- Posts: 135
- Joined: Thu Sep 29, 2011 9:36 pm
Re: LISA and H-alpha line
Robin Leadbeater wrote:Hi Rainer,Rainer Ehlert wrote:Hi,
Calibrating with the integrated NEON lamp does not give me a good calibration on Vega for example.
If your LISA only has the neon lamp I would recommend updating it to use the NeAr RELCO lamp.
http://www.spectro-aras.com/forum/viewt ... f=8&t=1091
That has many more lines, specially at the blue end and will give you a better calibration. Software like ISIS, Spcaudace, Demetra will find the lines for you automatically making the calibration easy
Cheers
Robin
Hi Robin,
Coming back to this topic I have found starter lamps here in Mexico with Argon and Krypton lines and they look like this. In 2012 Richard Walker from Switzerland helped me to define the lines.
regards Rainer____Observatorio Real de 14_____MÉXICO_____N 22° W 101°