Recent

New transit 11/16/2025

WASP-33 b

230

Giovanni Calapai, Calapai Astronomical Observatory, 11/13/2025

Celestron SCT 280/2800 Atik 314L+ red. 0,63x

. . .

New observation 11/16/2025

WASP-33

232

Giovanni Calapai, Calapai Astronomical Observatory, 11/13/2025

Celestron SCT 280/2800 Atik 314L+ red. 0,63x

. . .

New transit 11/11/2025

WASP-33 b

230

Kevin Alton, Desert Blooms Observatory, 10/20/2025

Meade 16" + ZWO ASI2600MM Pro

. . .

New observation 11/11/2025

WASP-33

232

Kevin Alton, Desert Blooms Observatory, 10/20/2025

Meade 16" + ZWO ASI2600MM Pro

. . .

New transit 10/30/2025

WASP-33 b

230

Sofiane Boutelba, 10/28/2025

. . .

New transit 10/30/2025

WASP-33 b

230

Sofiane Boutelba, 10/28/2025

. . .

New observation 10/30/2025

WASP-33

232

Sofiane Boutelba, 10/28/2025

. . .

New transit 10/19/2025

WASP-33 b

230

David Molina, 10/17/2025

S/C200 - KAF8300

. . .

New observation 10/19/2025

WASP-33

232

David Molina, 10/17/2025

S/C200 - KAF8300

. . .

New transit 9/15/2025

WASP-33 b

230

Martin Tylšar, Sutiny, 9/15/2025

Pentacon 4/200 G.D.R. + MII G2 1600

Pentacon 4/200 G.D.R. + MII G2 1600
clouds

. . .

New observation 9/15/2025

WASP-33

232

Martin Tylšar, Sutiny, 9/14/2025

Pentacon 4/200 G.D.R. + MII G2 1600

. . .

New transit 1/6/2025

WASP-33 b

230

Maxime Roumazeilles, Team OSI, 1/1/2025

Telescope newton 200/1000 mount HEQ 6 camera ZWO 178MM cool -15°C

Telescope newton 200/1000 mount HEQ 6 camera ZWO 178MM cool -15°C
Data obtained during astronomy vacation camp with families.

. . .

New observation 1/6/2025

WASP-33

232

Maxime Roumazeilles, Lans-en-Vercors, 1/1/2024

Telescope newton 200/1000 mount HEQ 6 camera ZWO 178MM cool -15°C

Telescope newton 200/1000 mount HEQ 6 camera ZWO 178MM cool -15°C
Data has been merge 5 by 5 frames for a better signal/noise ratio.
Base exposition: 7 seconds. Merge exposition: 35 seconds.
Data obtained during astronomy vacation camp with families.

. . .

New transit 1/6/2025

WASP-33 b

230

Ulisse Quadri, Luca Strabla, 11/17/2017

Newton telescope 250mm - CCD: Starlight Trius

. . .

New observation 1/6/2025

WASP-33

232

Ulisse Quadri, (IAU station 565) Bassano Bresciano Astronomical Observatory, 11/17/2017

Newton telescope 250mm - CCD: Starlight Trius

. . .

New observation 1/6/2025

WASP-33

232

Maxime Roumazeilles, Team OSI, 1/1/2025

Telescope newton 200/1000 mount HEQ 6 camera ZWO 178MM cool -15°C

Telescope newton 200/1000 mount HEQ 6 camera ZWO 178MM cool -15°C
Data obtained during astronomy vacation camp with families.

. . .

New transit 12/1/2024

WASP-33 b

230

Claudio Lopresti, GAD Observatory - SP, 11/29/2024

Mak-Newton 180mm F/4, CCD Sbig ST-10xme, L-R-G-B-Ha-SII-OIII-Ic-SA200

. . .

New observation 12/1/2024

WASP-33

232

Claudio Lopresti, GAD Observatory - SP, 11/29/2024

Mak-Newton 180mm F/4, CCD Sbig ST-10xme, L-R-G-B-Ha-SII-OIII-Ic-SA200

. . .

New transit 6/10/2024

WASP-33 b

230

Brian Kendrick, North Mesa Observatory (IAU code V27)

0.254m reflector F6.894

0.254m reflector F6.894
5s exposure, 1x1 bin, V filter
CCD Atik 383L+ (KAF-8300)

. . .

New transit 12/22/2023

WASP-33 b

230

Miguel Angel Alava, Sarriguren

Sc 203/2000 f10, Asi1600MM

Sc 203/2000 f10, Asi1600MM
120s exposures, filter Sloan r

Clouds

. . .

New transit 12/17/2023

WASP-33 b

230

jean plazas, Ribot Obervatory

SCT 10 + camera SBIG ST10

SCT 10 + camera SBIG ST10
exposure 100s
Ha filter 7 nm

. . .

New transit 11/26/2023

WASP-33 b

230

Tommaso Dittadi, Tommaso Dittadi Observatory

RC 10 f/8 camera Moravian G2-1600

RC 10 f/8 camera Moravian G2-1600
130 x 90 sec

. . .

New transit 11/22/2023

WASP-33 b

230

Yves Jongen, Rasteau Observatory

Planewave CDK 17" & SBIG STXL 11002

Planewave CDK 17" & SBIG STXL 11002
10 sec pics on R-Cousin filter.

. . .

New transit 10/2/2023

WASP-33 b

230

Miguel Angel Alava, Sarriguren

Sc 203/2000 f10, Asi1600MM

Sc 203/2000 f10, Asi1600MM
120s exposures

. . .

New transit 2/24/2023

WASP-33 b

230

Davide Pica, Home

Celestron C9.25, ASI 533 MC Pro, UV-IR cut filter

. . .

New transit 11/29/2022

WASP-33 b

230

Jose Maria Fernandez, Obs Inmaculada del Molino

Mak127 focal reducer f6.3 ASI1600

Mak127 focal reducer f6.3 ASI1600
Gap of meridian flip.

. . .

New transit 11/19/2022

WASP-33 b

230

Yves Jongen, Rasteau Observatory

Plane-Wave CDK 17" & SBIG STXL 11002

Plane-Wave CDK 17" & SBIG STXL 11002
120 sec pics on narrowband (6 nm) O3 filter.

. . .

New transit 11/8/2022

WASP-33 b

230

Guillaume Biesse, Mool, Micro Observatory of Lyon

Astro Professional 102/712 x0.8 + Moravian g2-4000

Astro Professional 102/712 x0.8 + Moravian g2-4000
Interrupted by clouds at the begining.

. . .

New transit 10/14/2022

WASP-33 b

230

Stéphane Montchaud, Burgundy Observatory

C8 F/6.3, ZWO Asi 1600mm-c, Asiair

C8 F/6.3, ZWO Asi 1600mm-c, Asiair
Exposure 30", R filter

. . .

New transit 9/25/2022

WASP-33 b

230

Yves Jongen, Rasteau observatory

Plane-Wave CDK 17" & SBIG STXL 11002

Plane-Wave CDK 17" & SBIG STXL 11002
120 sec pics on narrow band (7 nm) O3 filter.

. . .

New transit 8/29/2022

WASP-33 b

230

Vojtěch Školník, Broumov NMO

Sct 200/2000 + MI C2-7000A

. . .

New observation 8/29/2022

WASP-33

232

Vojtěch Školník, Hvězdárna Valašské Meziříčí

Sct 200/2000 (reduced to 1300) + MI C2-7000A

Sct 200/2000 (reduced to 1300) + MI C2-7000A
SIPS na Exoclock

. . .

New transit 8/28/2022

WASP-33 b

230

Vojtěch Školník, Broumov NMO

Sct 200/2000 + MI C2-7000A

. . .

New observation 8/28/2022

WASP-33

232

Vojtěch Školník, Broumov NMO

Sct 200/2000 + MI C2-7000A

. . .

New transit 8/27/2022

WASP-33 b

230

V. Dienstbier, Hvězdárna Valašské Meziříčí

Sekční set: NWT 150/750 + G2-1600

Sekční set: NWT 150/750 + G2-1600
Sloan r

. . .

New observation 8/27/2022

WASP-33

232

Vojtěch Dienstbier, Hvězdárna Valašské Meziříčí

Sekční set: NWT 150/750 + G2-1600

. . .

New transit 1/22/2022

WASP-33 b

230

J.Plazas, Ribot Observatory

C14 + APN Nikon D610 monochrome

C14 + APN Nikon D610 monochrome
Pose 10s
unfiltered APN test, very sensible
Moon and mag limit 18.6

. . .

New transit 11/17/2021

WASP-33 b

230

PLAZAS, Ribot Observatory

lunette 150/750 + camera starlight H18

lunette 150/750 + camera starlight H18
Pose 8s

. . .

New transit 11/12/2021

WASP-33 b

230

Robert Majewski, Timber Star

8 inch Newtonian, ASI183MM Pro Camera

8 inch Newtonian, ASI183MM Pro Camera
24 5 second exposures per data point. 642-842 nm filter to reduce Light Pollution. Losmandy G11 mount with TDM. Guiding and stacking using Fourier transform methodology.

. . .

New transit 10/29/2021

WASP-33 b

230

Manfred Raetz, Volksternwarte Kirchheim

Newton 500/2500 + SBIG ST-8

Newton 500/2500 + SBIG ST-8
filter was green-filter from RGB-set

. . .

New transit 1/18/2021

WASP-33 b

230

Francesco Scaggiante, Danilo Zardin,Marco Fiaschi, Gruppo Astrofili Salese Galileo Galilei S.M di Sala (Venezia ) ITALIA

Newton 410/1710 ccd Audine KAF1600 ME

Newton 410/1710 ccd Audine KAF1600 ME
exposure 10"

. . .

New transit 1/4/2021

WASP-33 b

230

Snaevarr Gudmundsson, Nes Observatory

406 mm LX200 SCT/SBIG STL11k CCD

406 mm LX200 SCT/SBIG STL11k CCD
R filter

. . .

New transit 11/30/2020

WASP-33 b

230

Jean-Claude MARIO, Observatoire de la cabergue

Astrosib RC 360 + moravian G4-16000

Astrosib RC 360 + moravian G4-16000
frame 30 s, binning 1 x 1, focused one time at the begenning.

. . .

New transit 11/16/2020

WASP-33 b

230

Manfred Raetz, Privatsternwarte Herges-Hallenberg

SCT 280 / 1790 + CCD MI G2-1600

. . .

New transit 10/9/2020

WASP-33 b

230

jean plazas, Ribot Observatory

C14 F/7+ camera SBIG ST-10

C14 F/7+ camera SBIG ST-10
pose 5s
half transit

. . .

New transit 9/5/2020

WASP-33 b

230

JuanJo Salamero, Observatorio astronómico de Guirguillano

SCT 14" + CCD Moravian G4-9000

. . .

New transit 2/6/2020

WASP-33 b

230

Mario Morales, Observatorio de Sencelles, Spain - MPC K14

254 mm f/3.3 Schmidt Cassegrain - SBIG ST7XME

254 mm f/3.3 Schmidt Cassegrain - SBIG ST7XME
306 exp. X 40" with 80% Moon

. . .

New transit 1/29/2020

WASP-33 b

230

Pavel Pintr, Horní Halže

Celestron 9.25 with Hyperstar f/2.2

Celestron 9.25 with Hyperstar f/2.2
partial foggy, filter Astronomic Planet IR PRO 807 nm

. . .

New transit 1/16/2020

WASP-33 b

230

Francesco Scaggiante, Danilo Zardin,Marco Fiaschi, Gruppo Astrofili Salese Galileo Galilei S.M di Sala (Venezia ) ITALIA

Newton 410/1710 ccd Audine KAF1600 ME

Newton 410/1710 ccd Audine KAF1600 ME
exposure 10"
defocuser

. . .

New transit 1/7/2020

WASP-33 b

230

Yves Jongen, Rasteau observatory

PlaneWave CDK 17 SBIG STLX11002

PlaneWave CDK 17 SBIG STLX11002
120 sec pics on O III filter (6 nm)
20 minutes late vs. ETD

. . .

New transit 12/29/2019

WASP-33 b

230

Manfred Raetz, Privatsternwarte Herges-Hallenberg

SCT 280 / 1790 + CCD MI G2-1600

. . .

New transit 12/1/2019

WASP-33 b

230

Snaevarr Gudmundsson, Nes Observatory

400 mm LX200 SCT/SBIG STL11k CCD

400 mm LX200 SCT/SBIG STL11k CCD
XOP-CBB filter, 120s

. . .

New transit 12/1/2019

WASP-33 b

230

Jens Jacobsen, Egeskov Observatory

EQ6, 100 mm refractor, Atik 314

EQ6, 100 mm refractor, Atik 314
Some drifting bands of clouds

. . .

New transit 11/20/2019

WASP-33 b

230

Manfred Raetz, Privatsternwarte Herges-Hallenberg

SCT 280 / 1790 + CCD MI G2-1600

. . .

New transit 10/16/2019

WASP-33 b

230

Giuseppe Marino, Gruppo Astrofili Catanesi

Newton 25cm/120cm + ST-7

Newton 25cm/120cm + ST-7
Exp. Time: 30 s
CCD Temp.: -10 °C
Binning: 1x1
Seeing: 2 pixel
Defocus FWHM: 9 pixel
Photometric apertures: radius 11, gap 4, Thick. 12 (MaxIM DL)
Limb darkening: 0.6 (assumed)
Note: by using AIJ, quadratic limb darkening coeffincients better fit ingress ad egress.

. . .

New transit 10/9/2019

WASP-33 b

230

Pere Guerra, Observatori Astronòmic Albanyà

16" Meade ACF F8, 10 Micron GM3000 HPS, Moravian G4-9000

16" Meade ACF F8, 10 Micron GM3000 HPS, Moravian G4-9000
1x1 Binning. Camera in fast readout mode. A meridian flip occured just at the end of egress. Meridian flip and Airmass detrended with AstroimageJ.

. . .

New transit 10/8/2019

WASP-33 b

230

Yves Jongen, Rasteau observatory

PlaneWave CDK 17 SBIG STLX11002

PlaneWave CDK 17 SBIG STLX11002
120 sec pics on narrowband O3 filter
18 minutes late vs. ETD

. . .

New transit 10/3/2019

WASP-33 b

230

Evgeny Krotkov, Private observatory

C5+Canon EOS 1000D

. . .

New transit 9/16/2019

WASP-33 b

230

Yves Jongen, Rasteau observatory

PlaneWave CDK 17 SBIG STLX11002

PlaneWave CDK 17 SBIG STLX11002
120 sec pics through narrow band OIII
filter. Defocussed 11580 to 11000

. . .

New transit 8/30/2019

WASP-33 b

230

Yves Jongen, Rasteau observatory

PlaneWave CDK 17 SBIG STLX11002

PlaneWave CDK 17 SBIG STLX11002
120 sec pics on narrow band (7 nm) O3 filter

. . .

New transit 2/25/2019

WASP-33 b

230

Viktor Stubbfält, Tycho Brahe-observatoriet

Celestron 14 OTA (35cm), SBIG ST-8300

Celestron 14 OTA (35cm), SBIG ST-8300
Missed beginning of transit.

. . .

New transit 1/4/2019

WASP-33 b

230

Gerald Persha, Lowell, Michigan

Meade RCT 250/2500 + Optec SSP-5a

Meade RCT 250/2500 + Optec SSP-5a
PEP data in V

. . .

New transit 12/13/2018

WASP-33 b

230

Francesco Scaggiante, Danilo Zardin, Gruppo Astrofili Salese Galileo Galilei S.M di Sala (Venezia ) ITALIA

Newton 410/1710 ccd Audine KAF1600 ME

Newton 410/1710 ccd Audine KAF1600 ME
exposure 10"

. . .

New transit 12/12/2018

WASP-33 b

230

Anael Wunsche, UAI B10 Baronnies Provençales Observatory

Cassegrain 430 mm STL 11K

Cassegrain 430 mm STL 11K
60 sec exposure filter B binning 1x1 defocused and multicomparison stars. Low elevation at the end

. . .

New transit 11/29/2018

WASP-33 b

230

Anael Wunsche, UAI B10 Baronnies Provençales Observatory

Cassegrain 430 mm STL 11K

Cassegrain 430 mm STL 11K
60 sec exposure filter B binning 1x1 defocused and multicomparison stars

. . .

New transit 11/9/2018

WASP-33 b

230

Jaden Novak, University of Saskatchewan, Physics Roof Building

Meade 10

. . .

New transit 11/9/2018

WASP-33 b

230

Didier Laloum, My home

Esprit 120 ED, Atik 383 L+, NEQ6

Esprit 120 ED, Atik 383 L+, NEQ6
Softwares : Artemis Capture and AIJ

. . .

New transit 9/10/2018

WASP-33 b

230

Janos, Ribot Observatory

lunette 150/750 +Sbig+ guidage QHY

lunette 150/750 +Sbig+ guidage QHY
90 s pose

. . .

New transit 8/14/2018

WASP-33 b

230

Gianluca Rossi, private equipment

6" f/4 reflector, Atik383L, 30 sec exposures

. . .

New transit 8/12/2018

WASP-33 b

230

Gabriel Murawski, Suwałki (SOTES)

ASI178MM-c, Canon FD 300mm f/2.8L, EQ5

ASI178MM-c, Canon FD 300mm f/2.8L, EQ5
Each measurement is a stacked 60x1s datapoint. Fixed duration due to partial transit (not fit).

. . .

New transit 1/14/2018

WASP-33 b

230

Robert Majewski, Timber Star

8 inch SCT, SBIG STT-1603,Losmandy G11 ,AO-8T

8 inch SCT, SBIG STT-1603,Losmandy G11 ,AO-8T
Average of 8 10 second exposures. Image auto guiding. 642nm - 842nm spectral band.

. . .

New transit 12/30/2017

WASP-33 b

230

Adam Campbell and Samuel Beiler, Grove City College Observatory

20" Cassegrain

. . .

New transit 12/30/2017

WASP-33 b

230

Adam Campbell and Samuel Beiler, Grove City College Observatory

20" Cassegrain

20" Cassegrain
Defocused on a slightly cloudy evening

. . .

New transit 12/23/2017

WASP-33 b

230

Rafael Benavides, Posadas Observatory (MPC J53)

Celestron 11 + QHY-9 ( KAF8300)

. . .

New transit 12/4/2017

WASP-33 b

230

Jean PLAZAS, Ribot Observatory

C8 F/6.6 + SBIG 10XTME

. . .

New transit 12/2/2017

WASP-33 b

230

Pere Guerra, Observatori Astronòmic Albanyà

16" Meade ACF F8, 10 Micron GM3000 HPS, Moravian G4-9000

16" Meade ACF F8, 10 Micron GM3000 HPS, Moravian G4-9000
Defocused
1x1 Binning
Average Airmass: 1.12
Average SNR: 633
Average FWHM: 11.32

. . .

New transit 11/21/2017

WASP-33 b

230

Ulisse Quadri, 565 Bassano

Refractor 300mm F/4.5 + CCD

Refractor 300mm F/4.5 + CCD
Used 4 comparison stars.
Red magnitude of comparison stars by USNO-A2.0 Catalog.
Comp1= 8.1R Comp2=7.8R Comp3=8.1R
Comp4= 8.0R. See attached image of field

. . .

New transit 11/18/2017

WASP-33 b

230

Mario Morales, Observatorio de Sencelles, Spain - MPC K14

254 mm f/3.3 Schmidt Cassegrain - SBIG ST7XME

254 mm f/3.3 Schmidt Cassegrain - SBIG ST7XME
265 exposures x 60" - defocused stars

. . .

New transit 8/12/2017

WASP-33 b

230

Gabriel Murawski, Suwałki

ASI178MM-c, Canon FD 300mm f/2.8 L, EQ5

ASI178MM-c, Canon FD 300mm f/2.8 L, EQ5
Bad weather conditions (clouds), observed with yellow filter. Each point is a median of 50x3s measurements.

. . .

New transit 2/15/2017

WASP-33 b

230

Technische Universität Braunschweig, Institut für Geophysik und extraterrestrische Physik, Sternwarte Hondelage, Braunschweig

Vixen NP-80L 80/1200 mm and SBIG ST-8XME

Vixen NP-80L 80/1200 mm and SBIG ST-8XME
CCD at -15 degree celsius

. . .

New transit 1/23/2017

WASP-33 b

230

Matthieu BACHSCHMIDT, Ferme

C11 + SBIG ST8XE

C11 + SBIG ST8XE
30s exposure

. . .

New transit 1/7/2017

WASP-33 b

230

Riat Valentin, Vessy, GE, Switzerland

skywatcher 150/750 (newton) EQ3-2 canon1100d

skywatcher 150/750 (newton) EQ3-2 canon1100d
It is the same data as for the observation below but with further analysis allowing a better result.(the admin can delet the previous observation)

. . .

New transit 1/2/2017

WASP-33 b

230

Matthieu BACHSCHMIDT, Ferme

C11 + SBIG ST8XE

C11 + SBIG ST8XE
30s exposure, stars fairly defocused because target star is very bright

. . .

New transit 12/10/2016

WASP-33 b

230

Manfred Raetz, Privatsternwarte Herges-Hallenberg

8" Meade + CCD MI G2-1600

. . .

New transit 12/6/2016

WASP-33 b

230

Manfred Raetz, Privatsternwarte Herges-Hallenberg

8" Meade + CCD MI G2-1600

. . .

New transit 12/3/2016

WASP-33 b

230

Pierre Le Cam, Private observatory

Corrected Cassegrain 250 mm / Alta U16M

Corrected Cassegrain 250 mm / Alta U16M
30s exposure with defocus, multicomp stars, sligthy hazy sky.

. . .

New transit 11/12/2016

WASP-33 b

230

Pierre Le Cam, Private observatory

Corrected Cassegrain 250 mm / Alta U16M

Corrected Cassegrain 250 mm / Alta U16M
40 s exposure, multicomp stars. Hazy in first part of transit.

. . .

New transit 11/5/2016

WASP-33 b

230

Matthieu BACHSCHMIDT, CAW

C11 + SBIG ST8XE

C11 + SBIG ST8XE
Very foggy sky

. . .

New transit 10/31/2016

WASP-33 b

230

Clausse Jean-Christophe, Auvet

200mm Atik 314L

200mm Atik 314L
First attempt in exoplanet transit

30s exposure with red filter

. . .

New transit 10/12/2016

WASP-33 b

230

Riat Valentin, Vessy (GE)

skywatcher 150/750 (newton) EQ3-2 canon1100d

. . .

New transit 10/5/2016

WASP-33 b

230

Marc DELDEM, Les Barres Observatory (MPC K22)

0.20-m f/10 Schmidt-Cassegrain C8 + CCD ST8-XME + A08 + f/7.4 focal reducer + G11 Gemini2

0.20-m f/10 Schmidt-Cassegrain C8 + CCD ST8-XME + A08 + f/7.4 focal reducer + G11 Gemini2
30 seconds exposure, no filter, binning 1x1, highly defocused. Ensemble photometry.

. . .

New transit 10/4/2016

WASP-33 b

230

jerome proust, plessis grammoire

ODK16, Starlight Xpress H35

ODK16, Starlight Xpress H35
60SEC EXPOSURE

. . .

New transit 9/28/2016

WASP-33 b

230

Pavel Pintr, Horní Halže

Skywatcher ED 80/600 na EQ - 6 Skyscan

Skywatcher ED 80/600 na EQ - 6 Skyscan
Canon EOS 350 D modifikovaný

. . .

New transit 9/12/2016

WASP-33 b

230

Ramon Naves, Observatorio Montcabrer MPC-213

S/C 305 F10 + CCD G4-9000

S/C 305 F10 + CCD G4-9000
Filter r Sloan

. . .

New transit 9/4/2016

WASP-33 b

230

Vrašťák M, Skubák P, Valašské Meziříčí

NWT 150/750+MII G2-1600, pointer 80/400+G1-0300

. . .

New transit 8/5/2016

WASP-33 b

230

Gianluca Rossi, S. Vito Romano

Apo refractor 90 mm f/6 Atik 383L+

Apo refractor 90 mm f/6 Atik 383L+
Filter deep red non photometric. The parent star is a very rapid Delta Scuti variable with low amplitude (around 0.005 mag) so part of the scatter of the light curve is due to the actual variation in brightness of the star

. . .