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.

protocol # in B.R.N.O. minima database: 22099
Name and Surename:
E-mail:
Station / Observatory:
Equipment:
Notes:	# 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) # RED CMunipack 1.1.26 + AVE 2.51 # NOTE 18/19 V 2012; R_560_30s (475/260); minimum S # NOTE 2456066.46315 +/- 0.00025; 20120518 23:06:56 (UT) GEO # COND clear weather -> cirrus -> very thick cirrus

STAR	P/S	FILTER	METHOD

COORDINATES			RRRR-MM-DD
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Comments

for star EL CVn

Martin Lehky wrote at 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 wrote at 4. 6. 2012
Primary minimum 2456014.35129 (Hel) occurs about 0.48 hours earlier than predicted (for elements 2448331.778 + 0.795629 * E)

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> Minima predictions <

> Transits predictions <

New minimas B.R.N.O.:

V859 Cyg (M. Vrašťák)

NSVS 07826147 (L. Šmelcer)

New transits TRESCA:

HD189733 b (A. Carreno)

HAT-P-12 b (M. Salisbury)

HAT-P-5 b (J. Mravik, J. Grnja)

Qatar-1 b (J. Mravik, J. Grnja)

Qatar-1 b (S. Golovanow)

Qatar-1 b (J. Gonzalez)

TrES-1 b (B. Walsh, T. Balonek, K. Iadanza)

TrES-1 b (K. Iadanza, T. Balonek)

New data MEDUZA & HERO:

CCD:
M. Lehký:

NGC4151 CVn

MKN421 UMa

NGC4151 CVn

MKN421 UMa

NGC4151 CVn

MKN501 Her

V 1107 Her

YY Her

MKN421 UMa

NGC4151 CVn

VIZ:
P. Dubovský:

WY And

Z And

Eta Aql

Rho Cas

V 465 Cas

Delta Cep

TZ Cep

V 730 Cep

R CrB

T CrB

VW CrB

CI Cyg

EM Cyg

P Cyg

Q Cyg

SS Cyg

V 1028 Cyg

V 1113 Cyg

V 1251 Cyg

V 1329 Cyg

Currently operating observers:
Observers on-line chat

OAC, ORBA, EABA y OAEGG
(Carlos Colazo)

STATUS: Is active 16:01 - 00:01

PROGRAM: B.R.N.O TRESCA

Sternenstaub Observatorium
(Dittler, Ullrich)

STATUS: Is active 08:26 - 16:26

PROGRAM: Exoplanet Observing

List of observed minimas

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for star EL CVn

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