59 Cygni

English version
Page mise à jour le 2010-11-21

Page written by B. Mauclaire
Send offprint requests to bmauclaire [*at*] gmail /dot/ com

Contexte :

Since June 2010, I've been monitoring 59 Cyg. How suprised when I saw that Ha line had so much variations.

That's why I take spectrum as often as possible and open this survey to all amateurs observers in spectroscopy for closed monitoring.

Behaviour analysis at 2010-11-20 :

59 Cyg looks like a quite star. But a small dynamic animation of Halpha line shows a strange activity and how HeI at 6678 Å is dancing:

anim 20101120

What about EW's evolution? Is there any period?
See plot of EW computed between 6535-6595 Å for last 200 days:

ew 20101120

Evolution seems very eratic. So, we still need more measurements.
Be kind enough to send us your spectra.

Chronological catalog of spectra:

16 spectra taken by amateurs since first spectrum. This star really needs futher observations. Join us to this survey!

Benjamin MAUCLAIRE - 18.903/11/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455519.4026. # EW(60.0=6535.0-6595.0)=-10.46 A. # sigma(EW)=0.44 A. # SNR=216. 59_cyg_20101118_903.fit	Benjamin MAUCLAIRE - 11.801/11/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455512.3006. # EW(60.0=6535.0-6595.0)=-12.31 A. # sigma(EW)=1.36 A. # SNR=72. 59_cyg_20101111_801.fit	Benjamin MAUCLAIRE - 29.934/10/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455499.4342. # EW(60.0=6535.0-6595.0)=-10.8 A. # sigma(EW)=1.7 A. # SNR=57. 59_cyg_20101029_934.fit
Benjamin MAUCLAIRE - 27.862/10/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455497.3617. # EW(60.0=6535.0-6595.0)=-10.7 A. # sigma(EW)=0.38 A. # SNR=250. 59_cyg_20101027_862.fit	Benjamin MAUCLAIRE - 25.849/10/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455495.3486. # EW(60.0=6535.0-6595.0)=-12.86 A. # sigma(EW)=0.94 A. # SNR=104. 59_cyg_20101025_849.fit	Benjamin MAUCLAIRE - 22.865/10/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455492.3645. # EW(60.0=6535.0-6595.0)=-10.81 A. # sigma(EW)=0.53 A. # SNR=182. 59_cyg_20101022_865.fit
Benjamin MAUCLAIRE - 14.913/10/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455484.4134. # EW(60.0=6535.0-6595.0)=-11.09 A. # sigma(EW)=0.58 A. # SNR=167. 59_cyg_20101014_913.fit	Benjamin MAUCLAIRE - 06.881/10/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455476.3809. # EW(60.0=6535.0-6595.0)=-10.67 A. # sigma(EW)=0.47 A. # SNR=203. 59_cyg_20101006_881.fit	Benjmain MAUCLAIRE - 24.974/09/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455464.4737. # EW(60.0=6535.0-6595.0)=-10.43 A. # sigma(EW)=0.7 A. # SNR=137. 59_cyg_20100924_974.fit
Benjmain MAUCLAIRE - 22.911/09/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455462.4113. # EW(60.0=6535.0-6595.0)=-9.76 A. # sigma(EW)=0.48 A. # SNR=198. 59_cyg_20100922_911.fit	Benjmain MAUCLAIRE - 11.935/09/2010 SC 12p - LHIRES3#151 2400 g/mm # JD=2455451.4352. # EW(60.0=6535.0-6595.0)=-10.1 A. # sigma(EW)=1.31 A. # SNR=73. 59_cyg_20100911_935.fit	Benjamin MAUCLAIRE - 09.185/08/2010 SC 12p - LHIRES3#151 2400 g/mm # JD=2455417.685. # EW(60.0=6535.0-6595.0)=-10.73 A. # sigma(EW)=0.53 A. # SNR=183. 59_cyg_20100809_185.fit
Benjamin MAUCLAIRE - 03.978/07/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455381.4782. # EW(60.0=6535.0-6595.0)=-11.64 A. # sigma(EW)=0.9 A. # SNR=108. 59_cyg_20100703.fit	Benjamin MAUCLAIRE - 26.027/06/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455373.5271. # EW(60.0=6535.0-6595.0)=-10.85 A. # sigma(EW)=0.58 A. # SNR=167. 59_cyg_20100626.fit	Benjamin MAUCLAIRE - 24.074/06/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455371.5744. # EW(60.0=6535.0-6595.0)=-10.87 A. # sigma(EW)=0.69 A. # SNR=139. 59_cyg_20100624.fit
Benjamin MAUCLAIRE - 06.104/06/2010 SCT 0.3m - LHIRES3#151 2400 g/mm # JD=2455353.6043. # EW(60.0=6535.0-6595.0)=-10.94 A. # sigma(EW)=0.46 A. # SNR=208. 59_cyg_20100606.fit	Benjamin MAUCLAIRE - 12.819/12/2008 LHIRES3#151-2400-SCT0.3m-AudineKAF1602E # JD=2454813.3185. # EW(60.0=6535.0-6595.0)=-10.69 A. # sigma(EW)=1.71 A. # SNR=56. 59_cyg_20081212.fit