OHP 2011 - Spectroscopy Workshop
night 4 (from 03-08 to 04-08)
This night I set up my telescope for CCD observations and I did some spectroscopy with my neighbours.
Acquisition
Instrument = Vixen VISAC VC200L with focal reducer (D=200mm, F/D=6.4)
Camera = Audine with KAF0402-ME
Software = Audela v2.0
Processing
Software = Python scripts
This variable star was found in July 2011 while doing asteroid photometry (lightcurve) for Raoul Behrend. The characteristics are:
- R magnitude ~ 14.5
- amplitude ~ 0.26
- period ~0.44 days
431 images have been taken during a period of 4h31min. Aperture photometry has been done with Python (AstroPython)
with 12 reference stars. The best combination of reference stars is the following:
The observed differential magnitude is
The results can be seen on Raoul Behrend's website, here.
94 exposures of 1 min. Short exposures were taken to avoid drift of the image (there was no guiding).
