FO Aqr time keeping [Observed: 49 sessions from 2004 to 2015]
Twelve seasons, from 2004 to 2015, of photometric monitoring of the intermediate polar FO Aqr are presented and are compared with previous observations. The ambiguities in the cycle counting can be lifted and a new O-C diagram, spanning 34 y,r is presented, along with new ephemerides.

BG CMi time keeping [Observed: 2005-2016]
Twelve seasons, from 2005 to 2016, of photometric monitoring of the intermediate polar BG CMi are presented and are compared with previous observations. The spin up of the white dwarf is found to have undergone a major change between 1996 and 2005. There is also some evidence for sideband signals. is also some evidence for sideband signals.

AO Psc time keeping [Observed: 74 sessions from 2004 to 2014]
Eleven seasons, from 2004 to 2014, of photometric monitoring of the intermediate polar AO Psc are presented and are compared with previous observations. The spin up of the white dwarf is found to be slowing down. The amplitudes of the modulated and non-modulated components of the brightness are found to have undergone a major change in 2007.

RXJ0944.5+0357 (VZ Sex) outburst [Observed: 1 Jan 2008]
Time series for this intermediate polar in outburst are presented.

SZ Mon, the double pulsator [Observed: 35 sessions from 23 Dec 2005 to 11 Mar 2007]
Photometry of this pulsating supergiant star (33d period) are presented. The magnitudes are compared with published observations. The measurements are also corrected for a nearby star. Variations of the color, temperature, radius and luminosity are inferred.

KZ Hya: a pulsating binary [Observed: 23, 24 Dec 2005, 25 Jan, 13 Mar, 7 Apr 2006]
Time-series of this pulsating SXPHE star in a binary system are presented and compared with other observations.

BT Mon: eclipser with a hump [Observed: 26 Oct, 1 Nov, 24 Dec 2005, 19 Jan 2006]
Light curves of this cataclysmic star are presented. They show the eclipse with a large hump. They are modelled with BinaryMaker3.

140 Siwa: light/rotation curves [Observed: Oct 2005-Feb 2006]
Time-series are obtained for this asteroid. A period of rotation is searched using a Monte Carlo algorithm.

Binary systems: orbital period and mass transfer []
The equations for the relation between the orbital period change of a binary system and the mass transfer are explicited.

335 Roberta rotation curves [Observations: 30 Sept, 9 Oct 2005]
Light/rotation curves for this asteroid are presented.

LQ Peg [Observed: 30 Sept, 10 Oct 2005]
Light curves for this anti-dwarf nova are presented.

V1356 Aql mystery [Observed: 8, 12, 29 Aug 2005]
I observe flat light curves for this RR Lyrae star.

W Vir: temperature, radius and radial velocity determinations from B, V photometry [Observed: 16 observing sessions from 27 April to 20 July 2005]
V and B magnitudes measurements are obtained for this Population II Cepheid pulsating star. They are used to compute the variations of temperature, radius and radial velocity. The results are compared with direct measurements from spectroscopy.

AE Aqr flares (and HX Aqr) [Observed: 29, 30, 31 Aug 2005]
Time-series of this unusual cataclysmic star were obtained with B and V filters. Flares were observed, with strong color changes.

2003 UB313: Solar System's new planet [Observed: 5, 9 August 2005]
This newly discovered planet is observed with a 20 cm telescope.

Tempel 1 and Deep Impact [Observed: 3, 5 July 2005]
39 h after the collision, the comet was still slightly brighter than before.

SwiftJ1753.5-0127 [Observed: 3, 5, 16, 17, 20 July, 4, 5 August 2005]
Time-series for this X and gamma-ray transient, which may be a black hole candidate, are presented.

V442 Oph [Observed: 2, 8, 18, 25 June, 5, 16, 17 July, 5 August 2005]
Time-series for this anti-dwarf nova are presented.

RW Sex: a steady cataclysmic [Observations: 26, 29 April 2005]
Time-series of this NL cataclysmic are presented.

VX Hya time keeping [Observations: 10, 11, 13, 16, 17, 18 March 2005]
Time-series for this pulsating star with multiple oscillations are obtained. They are compared with the Fitch (1966) ephemeris: the matching is still good but with a delay of 1.4 hour.

ASAS1749-13 = NSer2005 = V378 Ser [Observations: 5 Apr 2005]
V and B photometry measurements are reported for this nova.

CN Ori [Observations: 11, 14, 15 Jan 2005]
Light curves for this UGZ cataclysmic star are presented.

TV Lib: temperature and radius variations from photometry [Observations: 11, 13, 17, 18 March 2005]
Two-color time-series were obtained for this pulsating RR Lyrae star. The pulsation is too early when compared with the ephemeris. The temperature and the radius variations are computed from different models.

SW Sex observation and BinaryMaker3 model [Observations: 10, 11, 14, 15 January 2005]
SW Sex is an accreting binary with deep, non symmetrical eclipses. The observations are modelled with the BinaryMaker3 program.

V1118 Ori eruption: RVB observations [Observed 10 Jan 2005]
The eruptive star V1118 Ori was observed during an outburst as fading down and cooling down.

HQ Mon activity [Observations: 4, 7, 8, 9January 2005]
Light curves for this poorly known cataclysmic variable are presented.

EH Lib regular pulses [Observations: April-May 2004, March-April 2005]
The pulsating star EH Lib was observed and 15 pulses were measured. They are in phase with the 55-year old ephemeris of the GCVS (may be late by 2 or 3 mn only).

Transformation coefficients (with weights): B, V measurements [Observed: 5 Jan 2005, 24 Dec 2006, 12 Jan, 9, 15, 20 Feb, 11, 14 March,]
The transformation coefficients for my telescope and camera and B,V filters are measured and computed from weighted averages and weighted standard deviations.

Transformation coefficients (with weights): V, Rc measurements [Observed: 7 Jan 2005, 24 Dec 2006, 12 Jan, 19 July, 5 Aug, 5, 6, 12,]
The transformation coefficients for my telescope and camera and V,Rc filters are measured and computed from weighted averages and weighted standard deviations.

Transformation coefficients (with weights): V,Ic measurements [Observed: 7 Jan 2005, 5, 6, 12, 15 Sept 2007]
The transformation coefficients for my telescope and camera and V,Ic filters are measured and computed from weighted averages and weighted standard deviations.

Transformation coefficients: B, V measurements [Observed: 5 Jan 2005, 24 Dec 2006, 12 Jan, 9, 15, 20 Feb, 11, 14 March,]
The transformation coefficients for my telescope and camera and B,V filters are measured.