Récent

Nouveau transit 20/07/2026

HAT-P-23 b

160

Robert Majewski, RM-SRO, 20/07/2026

Celestron 11 inch Edge HD

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Nouvelle observation 20/07/2026

HAT-P-23

162

Robert Majewski, RM-SRO, 20/07/2026

Celestron 11 inch Edge HD

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Nouveau transit 13/07/2026

HAT-P-23 b

160

Giovanni Calapai, Calapai Astronomical Observatory, 13/07/2026

Celestron C14 (SCT 356/3910) Atik 314L+ red. 0,7x

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Nouvelle observation 13/07/2026

HAT-P-23

162

Giovanni Calapai, Calapai Astronomical Observatory, 12/07/2026

Celestron C14 (SCT 356/3910) Atik 314L+ red. 0,7x

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Nouveau transit 08/10/2025

HAT-P-23 b

160

Manfred Raetz, Privatsternwarte Herges-Hallenberg, 01/07/2025

SCT 280 / 1870 (C11 with Starizona reducer) CCD: MII G2-1600 filter : Astrodon ExoPlanet-BB (V to IR)

SCT 280 / 1870 (C11 with Starizona reducer) CCD: MII G2-1600 filter : Astrodon ExoPlanet-BB (V to IR)
already detrended with AstroImageJ 5.5.1.00

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Nouvelle observation 08/10/2025

HAT-P-23

162

Manfred Raetz, Privatsternwarte Herges-Hallenberg, 01/07/2025

SCT 280 / 1870 (C11 with Starizona reducer) CCD: MII G2-1600 filter : Astrodon ExoPlanet-BB (V to IR)

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Nouveau transit 05/07/2025

HAT-P-23 b

160

Vojtěch Školník, Broumov NMO, 01/07/2025

Sct 200/2000 (reduced to 1350) + MI C2-7000A

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Nouvelle observation 05/07/2025

HAT-P-23

162

Vojtěch Školník, Broumov NMO, 01/07/2025

Sct 200/2000 (reduced to 1350) + MI C2-7000A

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Nouveau transit 02/07/2025

HAT-P-23 b

160

Mario Morales Aimar, Observatorio de Sencelles, 01/07/2025

Newtonian 250 mm f/4 - SBIG ST-7XME

Newtonian 250 mm f/4 - SBIG ST-7XME
159 EXP. X 70"

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Nouvelle observation 02/07/2025

HAT-P-23

162

Mario Morales Aimar, Observatorio de Sencelles, 01/07/2025

Newtonian 250 mm f/4 - SBIG ST-7XME

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Nouveau transit 14/01/2025

HAT-P-23 b

160

Samuel Diaz Lopez, Observatorio Tomas Lopez. AstroCamp. , 08/08/2021

SCA260 + Atik16200

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Nouvelle observation 14/01/2025

HAT-P-23

162

Samuel Diaz Lopez, Observatorio Tomas Lopez. AstroCamp. , 07/08/2021

SCA260 + Atik16200

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Nouveau transit 25/11/2024

HAT-P-23 b

160

Manfred Raetz, Privatsternwarte Herges-Hallenberg, 31/07/2024

SCT 280 / 1870 (C11 with Starizona reducer)+ CCD MII G2-1600

SCT 280 / 1870 (C11 with Starizona reducer)+ CCD MII G2-1600
filter : Astrodon ExoPlanet-BB (V to IR)
Exposure time of 240 s is achieved by combining two exposures of 120 s each

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Nouvelle observation 25/11/2024

HAT-P-23

162

Manfred Raetz, Privatsternwarte Herges-Hallenberg, 30/07/2024

SCT 280 / 1870 (C11 with Starizona reducer)+ CCD MII G2-1600

SCT 280 / 1870 (C11 with Starizona reducer)+ CCD MII G2-1600
filter : Astrodon ExoPlanet-BB (V to IR)
Exposure time of 240 s is achieved by combining two exposures of 120 s each

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Nouveau transit 07/11/2024

HAT-P-23 b

160

Thomas Karl Friedli + Abhiraj Roy Choudhury, Sonnenturm Uecht Observatory, 27/08/2024

William Optics 132/925 mm + ZWO ASI6200 MM Pro CMOS + Johnson V filter

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Nouvelle observation 07/11/2024

HAT-P-23

162

Thomas Karl Friedli + Abhiraj Roy Choudhury, Sonnenturm Uecht Observatory, 27/08/2024

William Optics 132/925 mm + ZWO ASI6200 MM Pro CMOS + Johnson V filter

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Nouveau transit 19/10/2024

HAT-P-23 b

160

Team OSI, Chandolin, Swiss

Telescop Newton 200/1000 Monture HEQ6 ZWO 178 AMM cooled at-15°C, setup drived by NINA

Telescop Newton 200/1000 Monture HEQ6 ZWO 178 AMM cooled at-15°C, setup drived by NINA
590 frames, 7 seconds, 50 ISO Data were collected by teenagers during a science camp with Objectif Sciences International

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Nouveau transit 02/09/2024

HAT-P-23 b

160

Andre Kovacs, Erika Pakštienė, Moletai Astronomical Observatory (MAO); Lithuania

MAO, 35cm MCT 350/1200 + Apogee Alta-U47-BB

MAO, 35cm MCT 350/1200 + Apogee Alta-U47-BB
RAW data calibrated and reduced using AstroImageJ, including information on AIRMASS and additional (optional) detrending parameters for AIRMASS. Tried many different combinations of comps but could not match the expected transit depth for ExoClock. However, the transit depth obtained is consistent with observations from others on Exoplanet Watch for the R filter.

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Nouveau transit 28/08/2024

HAT-P-23 b

160

Matthieu BACHSCHMIDT, Gonachon

C11 f/6.7 + SBIG ST8XME

C11 f/6.7 + SBIG ST8XME
Astrodon BB exo filter, 120s exposure

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Nouveau transit 17/08/2024

HAT-P-23 b

160

John Collins, Wrexham

10inch SCT @F4 / ASI290m

10inch SCT @F4 / ASI290m
Filter = r

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Nouveau transit 11/08/2024

HAT-P-23 b

160

Mario Morales, Observatorio de Sencelles, Spain - MPC K14

Newtonian 250 mm f/4 - SBIG ST7XME

Newtonian 250 mm f/4 - SBIG ST7XME
131 EXP. X 100" CLEAR FILTER

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Nouveau transit 31/07/2024

HAT-P-23 b

160

Samuel Diaz Lopez, AstroCamp (Spain)

RC10 + Atik16200

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Nouveau transit 20/07/2024

HAT-P-23 b

160

Samuel Diaz Lopez, AstroCamp (Spain)

RC10 + Atik16200

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Nouveau transit 14/07/2024

HAT-P-23 b

160

Anaël Wünsche, UAI B10 Observatoire des Baronnies Provençales

Planewave 17" + ZWO ASI 6200 MM pro mono

Planewave 17" + ZWO ASI 6200 MM pro mono
R filter. 120s exposures. Thin clouds before ingress then all clear. Temp. -15°C instead of -20°C due to heat wave in south of France.

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Nouveau transit 14/07/2024

HAT-P-23 b

160

Yves Jongen, Rasteau Observatory

Planewave CDK 17" & SBIG STXL 11002

Planewave CDK 17" & SBIG STXL 11002
120 sec pics on IR-UV filter.

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Nouveau transit 14/07/2024

HAT-P-23 b

160

Samuel Diaz Lopez, AstroCamp (Spain)

RC10 + Atik16200

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Nouveau transit 10/07/2024

HAT-P-23 b

160

Giuseppe Marino, Gruppo Astrofili Catanesi

Newton 25cm f/4.8 + coma corrector + SBIG ST-7XME

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Nouveau transit 10/11/2023

HAT-P-23 b

160

Mario Morales, Observatorio de Sencelles, Spain - MPC K14

Newtonian 250 mm f/4 - SBIG ST7XME

Newtonian 250 mm f/4 - SBIG ST7XME
120 EXP. X 100sec - CLEAR FILTER

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Nouvelle observation 21/09/2023

HAT-P-23

162

Vojtěch Dienstbier, Hvězdárna Valašské Meziříčí

Sekční set: NWT 150/750 + G2-1600

Sekční set: NWT 150/750 + G2-1600
120s clear
Vojtěch Dienstbier & David Chudožilov

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Nouveau transit 24/08/2023

HAT-P-23 b

160

Vojtěch Školník, Hvězdárna Valašské Meziříčí

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

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Nouvelle observation 24/08/2023

HAT-P-23

162

Vojtěch Školník, Hvězdárna Valašské Meziříčí

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

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Nouveau transit 21/08/2023

HAT-P-23 b

160

Eduardo Fernández Lajús, Romina P. Di Sisto, Complejo Astronómico El Leoncito, Argentina

0.6 m Telescope + SBIG STL 1001 CCD

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Nouveau transit 01/08/2023

HAT-P-23 b

160

Claudio Lopresti, GAD Observatory - SP

Mak-Newton 180mm F/4 - Sbig ST10xme

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Nouveau transit 01/09/2022

HAT-P-23 b

160

F. Lomoz, Sedlčany

Zeiss 130/360+C3-61000

Zeiss 130/360+C3-61000
exp. 118s

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Nouveau transit 30/08/2022

HAT-P-23 b

160

F. Lomoz, Sedlčany

SNT 254/1016+G2-8300

SNT 254/1016+G2-8300
exp. 80s

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Nouveau transit 14/08/2022

HAT-P-23 b

160

proust jerome, plessis grammoire

ODK16 +ccd H16

ODK16 +ccd H16
120sec/exposure

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Nouveau transit 13/08/2022

HAT-P-23 b

160

Yves Jongen, Rasteau Observatory

Plane-Wave CDK 17" & SBIG STXL 11002

Plane-Wave CDK 17" & SBIG STXL 11002
120 sec pics on IR-UV filter.

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Nouveau transit 02/08/2022

HAT-P-23 b

160

Samuel Diaz Lopez, AstroCamp (Spain)

RC 10 + atik16200

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Nouveau transit 10/07/2022

HAT-P-23 b

160

Matthieu BACHSCHMIDT, Gonachon

C11 + SBIG ST8XME

C11 + SBIG ST8XME
Astrodon BB exo filter
60s exposure bin 2x2

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Nouveau transit 09/10/2021

HAT-P-23 b

160

Anaël Wünsche, UAI B10 Baronnies Provencales Observatory

Cassegrain 430 mm + Zwo ASI6200 Pro mono

Cassegrain 430 mm + Zwo ASI6200 Pro mono
R filter. 120s exposures. 1.3" seeing. New moon. Slight defocus. High humidity. Low elevation at egress.

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Nouveau transit 04/10/2021

HAT-P-23 b

160

Yves Jongen, Deep Sky Chile

Plane Wave CDK 17" & Moravian 4G

Plane Wave CDK 17" & Moravian 4G
120 sec pics on IR-UV filter.

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Nouveau transit 27/09/2021

HAT-P-23 b

160

Wonseok Kang, Deokheung Optical Astronomy Observatory

NYSC 1m Telescope + SOPHIA-2048B

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Nouveau transit 17/09/2021

HAT-P-23 b

160

Yves Jongen, Deep Sky Chile

Plane Wave CDK 17" & Moravian 4G

Plane Wave CDK 17" & Moravian 4G
120 sec pics on IR-UV filter.

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Nouveau transit 25/08/2021

HAT-P-23 b

160

F. Lomoz, Sedlčany

NWT 300/1200+ST2000XM

NWT 300/1200+ST2000XM
exp. 50s

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Nouveau transit 09/08/2021

HAT-P-23 b

160

Samuel Diaz Lopez, AstroCamp (Spain)

RC 10 + atik16200

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Nouveau transit 02/08/2021

HAT-P-23 b

160

Maurice Audejean, Chinon Observatory B92

0.32-m f/6 Newtonian reflector + CCD

0.32-m f/6 Newtonian reflector + CCD
Observations at the Dauban / ChantePerdrix observatory A77. (N43.9997 E5.6475)
Telescope Newtonian 400 mm f 1120
CCD Atik 160ex.

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Nouveau transit 12/06/2021

HAT-P-23 b

160

Yves Jongen, Rasteau Observatory

Plane Wave CDK 17" & SBIG STXL11002

Plane Wave CDK 17" & SBIG STXL11002
120 sec pics on IR-UV filter.

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Nouveau transit 26/05/2021

HAT-P-23 b

160

Jean Plazas, Ribot Observatory

C14 F/7 + camera SBIG ST10

C14 F/7 + camera SBIG ST10
70 sec exposure filter clear binning 2x2 defocused and multi comparaison stars

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Nouveau transit 09/12/2020

HAT-P-23 b

160

Ferran Grau Horta, Ca l Ou (MPC-C71)

Meade 16 + FLI PL1001

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Nouveau transit 05/12/2020

HAT-P-23 b

160

JOSEP GAITAN, MAS MOIXA MPC C86

SC 10" F 6.8 ST8 + AO8

SC 10" F 6.8 ST8 + AO8
240 S.SEING WIND

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Nouveau transit 25/08/2020

HAT-P-23 b

160

Lorenzo Barbieri, AAB Medelana (BO) Italy

Newton 400mm f/5

Newton 400mm f/5
A lot of clouds at the first contact time

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Nouveau transit 25/08/2020

HAT-P-23 b

160

Yves Jongen, Rasteau observatory

PlaneWave CDK 17 SBIG STLX11002

PlaneWave CDK 17 SBIG STLX11002
120 sec pics on IR-UV filter.
6 minutes late vs. ETD.

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Nouveau transit 20/08/2020

HAT-P-23 b

160

Pedro Martorell, Observatorio Astronomico de Guirguillano

SCT 14" + CCD Moravian G4-9000

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Nouveau transit 14/08/2020

HAT-P-23 b

160

Pavel Pintr, Horní Halže

Skywatcher ED 80/600 na EQ - 6 Skyscan

Skywatcher ED 80/600 na EQ - 6 Skyscan
filter Baader 865 nm IR, clear sky

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Nouveau transit 08/08/2020

HAT-P-23 b

160

F. Lomoz, Sedlčany

SNT254/1016+G2-8300

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Nouveau transit 08/08/2020

HAT-P-23 b

160

Lorenzo Barbieri, AAB Medelana (BO) Italy

Newton 400mm f/5

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Nouveau transit 08/08/2020

HAT-P-23 b

160

F. Lomoz, Sedlčany

NWT 300/1200+ST2000XM

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Nouveau transit 22/07/2020

HAT-P-23 b

160

Arena Claudio, Private Observatory in Catania - ObservatoryCT

Sky-Watcher NWT 200/1000 + Atik 314L + 0.9x Coma corrector

Sky-Watcher NWT 200/1000 + Atik 314L + 0.9x Coma corrector
200 sec exposure. Flip during the mid of the transit. Slight Defocus.

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Nouveau transit 13/07/2020

HAT-P-23 b

160

Arena Claudio, Private Observatory in Catania - ObservatoryCT

Sky-Watcher NWT 200/1000 + Atik 314L + 0.9x Coma corrector

Sky-Watcher NWT 200/1000 + Atik 314L + 0.9x Coma corrector
200 sec exposure time. A bit of light pollution from Moon.
End of observation at Twilight.

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Nouveau transit 05/07/2020

HAT-P-23 b

160

maurizio cervoni, ATA Fuligni (Rocca di Papa - RM)

Meade ACF 350/3500

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Nouveau transit 08/06/2020

HAT-P-23 b

160

Yves Jongen, Deep Sky Chile

Planewave CDK 17 Moravian 4G

Planewave CDK 17 Moravian 4G
120 sec pics on IR-UV filter.
11 minutes late vs. ETD

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Nouveau transit 29/09/2019

HAT-P-23 b

160

Yves Jongen, Rasteau observatory

PlaneWave CDK 17 SBIG STLX11002

PlaneWave CDK 17 SBIG STLX11002
120 sec pics on IR-UV filter
8 min late vs. ETD

. . .

Nouveau transit 29/09/2019

HAT-P-23 b

160

astromb, Gonachon obs

C11 + SBIG ST8XME

C11 + SBIG ST8XME
BB exo filter

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Nouveau transit 18/09/2019

HAT-P-23 b

160

Anaël Wünsche, UAI B10 Baronnies Provençales Observatory

RC 82 cm - CCD FLI PL230

RC 82 cm - CCD FLI PL230
120s exposures. Filter V. Slight defocus. seeing around 4". Gibbous moon. Multicomparison stars.

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Nouveau transit 06/09/2019

HAT-P-23 b

160

Yenal Ogmen, Green Island Observatory

14" LX200R + ST-8XME CCD

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Nouveau transit 15/08/2019

HAT-P-23 b

160

Marc Bretton, UAI B10 Baronnies Provençales Observatory

RC 82 cm - CCD FLI PL230

RC 82 cm - CCD FLI PL230
120 sec exposure filter clear binning 1x1 defocused and multi comparison stars, clouds before egress

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Nouveau transit 15/08/2019

HAT-P-23 b

160

Yves Jongen, Rasteau Observatory

PlaneWave CDK17" & SBIG STXL11002

PlaneWave CDK17" & SBIG STXL11002
120 sec pics on Green filter
Clouds around 23h10 UTC

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Nouveau transit 11/08/2019

HAT-P-23 b

160

Scigifoto skupina Úpice, Úpice

NWT 194/1000mm + CCD MII G2-8300

NWT 194/1000mm + CCD MII G2-8300
Martin Tylšar, Martin Mašek, Jakub Hadač, Vojtěch Tlustý.

Light curve made from 7 light curves according to 7 comparison star.

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Nouveau transit 09/08/2019

HAT-P-23 b

160

Claudio Lopresti, GAD-sp

Mak-Newton 180mm F/4 - Sbig ST10xme

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Nouveau transit 07/08/2019

HAT-P-23 b

160

Alberto Tomatis, Alto-Observatory

RC 16

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Nouveau transit 04/08/2019

HAT-P-23 b

160

Marc Bretton, UAI B10 Baronnies Provençales Observatory

RC 82 cm - CCD FLI PL230

RC 82 cm - CCD FLI PL230
120 sec exposure filter clear defocused and multi comparison stars

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Nouveau transit 12/07/2019

HAT-P-23 b

160

Luis Tremosa, Observatorio E Sueño MPC C90

newton 300 F5 + ccd

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Nouveau transit 28/06/2019

HAT-P-23 b

160

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
2x2 Binning, CBB Filter, lots of systematics due to bad tracking. Airmass detrended with AstroimageJ.

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Nouveau transit 22/05/2019

HAT-P-23 b

160

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
2x2 Binning, CBB Filter. Some mount issues prevented proper tracking. Airmass detrended with AstroimageJ.

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Nouveau transit 22/10/2018