Object Pollux (Beta Geminorum, SAO 79666)
Telescope 14" Meade RCX400 at f/8
Spectrograph / CCD SBIG SGS, SBIG ST-7XME at -20C
Resolution Low resolution mode (150 lines/mm grating, 4.3 Angstroms/pixel dispersion, ~ 9 Angstrom resolution (R ~ 720 at H-alpha)
Integration Details 11 x 30s, dark subtracted and median combined
Date / Median Time (UTC) 05-Feb-2007 0500 UTC
Moon Phase 92%
Approximate Airmass 1.04
CCD Response Curve Source Epsilon Orionis
Wavelength Calibration H and Ne lamps
Software Used TheSky, CCDSoft, CCDStack, Iris, vSpec, Excel, Photoshop
Comments Pollux is the orangish twin to Castor in the Constellation Gemini.  Normally this star would not have needed 30s integrations, apparently the guider calibration was not working as well as it should have.