RR
Lyrae Blazhko campaign 2013
Spectrophotometry
observations
Christian Buil - Castanet-Tolosan observatory
Click here for informations about
the campaign and my setup
2012
observations (LISA + eShel)
Adopted ephemeris (max intensity) : 2456425.997 + 0.56675 x E
13
- 14 / 05 / 2013
CN-212
telescope (D = 200 mm) - Alpy 600 spectrograph (R = 600) -
Atik 460EX CCD camera - Time resolution : 300 seconds
Clear
night (photometric conditions)
Max : JD2456426.564 (cycle 1)
Dynamic spectrum
from JD 2456426.402 (down) to jd 2456426.636 (up)
- Left wavelength: 3750 A, rigth wavelength: 6800 A
Main shock :
JD 2456426.512 - Phase
= 0.909
25
- 26 / 05 / 2013
CN-212
telescope (D = 200 mm) - Alpy 600 spectrograph (R = 600) -
Atik 460EX CCD camera - Time resolution : 300 seconds
Very
cloudy night before maximum, clear night after
Max : JD2456438.466 (cycle 22)
Dynamic spectrum
from JD 2456438.352 (down) to jd 2456438.639 (up)
- Left wavelength: 3750 A, rigth wavelength: 6800 A
Main shock :
JD 2456438.413 - Phase
= 0.907
26
- 27 / 05 / 2013
CN-212
telescope (D = 200 mm) - Alpy 600 spectrograph (R = 600) -
Atik 460EX CCD camera - Time resolution : 300 seconds
Some
thin cirrus clouds during first one hour of the observation (not
photometric conditions)
Max : JD2456439.599 (cycle 24)
Dynamic spectrum
from JD 2456439.353 (down) to jd 2456439.610 (up)
- Left wavelength: 3750 A, rigth wavelength: 6800 A
Main shock :
JD 2456439.550 - Phase = 0.913