This list is NOT A PUBLICATION of observed minimas. It only shows activity of cooperating observers of eclipsing binaries.

B.R.N.O. times of minima are periodicaly published in Open Europen Journal on Variable stars and then data are displayed in O-C gateway.

Administrators of BRNO project:

Mgr. Kateřina Hoňková, Ing. Jakub Juryšek nadseni.promenari@astronomie.cz

NEW Instruction for inserting minima to BRNO database

For non-Czech observers, written in English. Please, keep in mind this instruction.

protocol number of the minim in B.R.N.O. database: 24553
Name and Surename:
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Station:
Instrument:
Note / conditions:	# NAME EL CVn # VAR 13:23:57.02 +43:35:55.4 2448331.77800 0.795629 9.42-9.59V EA (VSX 20120328) # OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7) # FLT R # RED CMunipack 1.1.26 + Peranso 2.50 # NOTE 13/14 III 2014; R_357_30s (342/184); 3.5h; minimum P # NOTE 2456730.41126 +/- 0.00011; 20140313 21:52:13 (UT) GEO # COND fine clear weather ----- EBFit result: ----- Tmin = 2456730.41129 Error (1 sigma): +0.00020/-0.00021 (Bootstrapping), +0.00013/-0.00017 (Prayer bead), +0.00020/-0.00020 (LSM) Error (95% CI): +0.00043/-0.00043 (Bootstrapping), +0.00050/-0.00036 (Prayer bead) LSM: chi^2 = 229.1, n_freedom = 233

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ASCII data

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Comment

object EL CVn

Martin Lehky, 4. 6. 2012
Duration of primary eclipse DI = 0.08d (1.9h) and duration of totality in primary eclipse dI = 0.07d (1.7h), amplitude Rc = 0.08 mag. Duration of secondary eclipse DII = 0.08d (1.9h) and duration of totality in secondary eclipse dII = about 0.06d (1.4h):, amplitude Rc = 0.04 mag. The shape of the ligtcurve looks like transit of big exoplanet:-)
Martin Lehky, 4. 6. 2012
Primary minimum 2456014.35129 (Hel) occurs about 0.48 hours earlier than predicted (for elements 2448331.778 + 0.795629 * E)

No records