Stellar Spectra

 

 

WhatsNew

 

SAM III

HHO SAM III Geomagnetic monitor is now online.

22 June 2011

   

 

CurrentNews

 

Poor sky conditions Bug HHO

HHO is suffering an unprecedented period of unfavorable weather conditions.  It's almost as if we have a monsoon season - without the rain!

17 January 2012

   

 

RecentNews

 

Spectra L-200

The L200 spectrograph has been calibrated and seen first light on Sirius and Spica.  See here for details

04 May 2011

   

 

 

 

 

Sirius

My first attempt.  Unfortunately I should have started further down the spectrum (~4000A) as there is not much going on up at 6500A except a lot of atmospheric absorption (Telluric)

The first and second image was calibrated on the single Ha line and the fact that from my calibration images I knew that my system has a 0.7446 A/px resolution.  The last image was rough calibrated only.  The other major problem is that the first image was grossly overexposed.  I need to learn to use SimSpec to calculate the expected integration times and then ensure the target is accurately placed on the slit.


Spica

I started Spica centred around 4000A.  The second image is centred around 4600A but due to poor sky conditions was not able to maintain guiding and as such could not keep the star on the slit.  Although noisy, I was able to calibrate the spectra.