PlaneWave CDK 17" & Moravian 4 G
18 sec pics on Red filter.

150 cm Ritchey-Chretien f/9 (0.67x reducer) ZWO ASI533MM Pro
Data reduced and normalized using AstroImageJ, including AIRMASS information and additional detrending parameters for AIRMASS.

0.6 m Boller & Chivens f/13.5 Andor iKon-L936-EX2 CCD
RAW data calibrated and reduced using AstroImageJ, including information on AIRMASS and additional (optional) detrending parameters for Width_T1 and X(FITS)_T1.

Plane-Wave CDK 17" & Moravian 4 G
12 sec pics on Red filter

Plane-Wave CDK 17" & Moravien 4 G
12 sec pics on Red filter.

Plane Wave CDK 17" & Moravian 4G
60 sec pics on Red filter.
Defocussed -600 µm.

Plane Wave CDK 17" & Moravian 4G
60 sec pics on Red filter.
Defocussed -600 µm.

Plane Wave CDK 17" & Moravian 4G
60 sec pics on Red filter.
Defocussed -600 µm.

280mm SCT f/6.3 + Atik 320E CCD
25s exposures, severely defocused. Each point is average of 7 exposures. One comp star.

Celestron 235mm SCT + f/6.3 focal reducer + Atik 320E camera
CBB filter used. 10s exposures binned 1x1. Weighted ave. of two comp stars. Each data point is ave of 6 exposures. Clouds prevented full transit from being observed, so mid time was adopted.

SBIG ST10 @ Newton 510 / 1888
Exposure time: 30 sec, 1x1-binning

SBIG ST10 @ Newton 510 / 1888
Exposure time: 30 sec, 1x1-binning,
defocused

Celestron LX200GPS 8 inches, SBIG ST-10
Data taken by Nancy Barraza, Farid Char and Juan Pablo Colque. Data reduction carried out by Eduardo Unda-Sanzana. We took images in groups of 10 exposures of 15 s each (dead time ~15 s too). Then we added the images using Starlink producing one combined image for every 10 exposures. Finally we carried out differential photometry on the combined images using two constant stars nearby. Transit length 128 minutes adopted to findout midtransit time.

C11 with SBIG ST7
10 second integrations. 10 pixel (7 arcseond) diameter aperture with 3 comparison stars. Non-photometric night (perhaps with light cirrus).

C11 with SBIG ST7
Each data-point is the average of ten measurements from individual 5 second exposures. 7 arcsecond diameter aperture used for all photometry. Guide star catalog ID 0804000710 used as the comparison star (highlighted with box in the accompanying image).