Latest ExoClock Observations by Simon Dawes

[et_pb_section fb_built="1" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_row _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="4_4" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"]

These are the latest Exoplanet transits that member Simon Dawes has done for the ExoClock project.

To find out more about the ExoClock project click here.

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row column_structure="1_2,1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_image src="https://crayfordmanorastro.com/wp-content/uploads/2026/01/WhatsApp-Image-2026-01-12-at-19.05.32.jpeg" title_text="WhatsApp Image 2026-01-12 at 19.05.32" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][/et_pb_image][/et_pb_column][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"]

XO-6b is a transiting exoplanet, orbiting the star XO-6 around 760 light years (230 parsecs) away from Earth. It was discovered in 2016 by the XO planet search team.

XO-6b orbits XO-6, a faint 10th magnitude star in the constellation Camelopardalis.

XO-6b is classified as a hot Jupiter. The planet has an orbital period of just 3.8 days and an average orbital separation of 0.082 astronomical units. Ref: https://en.wikipedia.org/wiki/XO-6b

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row column_structure="1_2,1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_image src="https://crayfordmanorastro.com/wp-content/uploads/2026/01/WhatsApp-Image-2026-01-11-at-12.40.25.jpeg" title_text="WhatsApp Image 2026-01-11 at 12.40.25" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][/et_pb_image][/et_pb_column][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" hover_enabled="0" global_colors_info="{}" custom_padding="1px|||||" sticky_enabled="0"]

EPIC 246851721 b is a gas giant exoplanet, 3x the mass of Jupiter, it takes 6.2 days to orbit its (F-Type) star and is 0.07229 AU from its star. It was discovered in 2018.

The F-type star EPIC 246851721 is a star in the constellation of Taurus. EPIC 246851721 distance from Earth is 1224.38 light years away.

Simon said ''It's the shallowest transit I've attempted at 5 milli-mag. on a mag 11 star.''

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row column_structure="1_2,1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_image src="https://crayfordmanorastro.com/wp-content/uploads/2026/01/WhatsApp-Image-2026-01-06-at-15.31.04.jpeg" title_text="WhatsApp Image 2026-01-06 at 15.31.04" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][/et_pb_image][/et_pb_column][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"]

WASP-33b is an extrasolar gas giant planet orbiting the A-type star HD 15082 in Andromeda.  It was the first transiting planet discovered to orbit a Delta Scuti variable star.  Its mass is 2.093 Jupiters, it takes 1.2 days to complete one orbit of its star, and is 0.0239 AU from its star. Its discovery was announced in 2010.

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row column_structure="1_2,1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_image src="https://crayfordmanorastro.com/wp-content/uploads/2026/01/WhatsApp-Image-2025-11-19-at-13.32.49-1.jpeg" title_text="WhatsApp Image 2025-11-19 at 13.32.49 (1)" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][/et_pb_image][/et_pb_column][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"]

KELT-2Ab is an extrasolar gas giant planet that orbits the F-type star KELT-2A approximately 440 light-years away in the Auriga.

Its mass is 1.7 Jupiters, it takes 4.1 days to complete one orbit of its star, and is 0.05497 AU from its star. Its discovery was announced in 2012.

 

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row column_structure="1_2,1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_image src="https://crayfordmanorastro.com/wp-content/uploads/2026/01/WhatsApp-Image-2025-11-10-at-10.00.30-1.jpeg" title_text="WhatsApp Image 2025-11-10 at 10.00.30 (1)" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][/et_pb_image][/et_pb_column][et_pb_column type="1_2" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" hover_enabled="0" global_colors_info="{}" sticky_enabled="0"]

Qatar-1b is a gas giant exoplanet that orbits a a metal-rich K dwarf star in Draco. Its mass is 1.294 Jupiters, it takes 1.4 days to complete one orbit of its star, and is 0.02332 AU from its star. Its discovery was announced in 2010 and was the first planet discovered by the Qatar Exoplanet Survey.

[/et_pb_text][/et_pb_column][/et_pb_row][/et_pb_section]

Congratulations to…..

[et_pb_section fb_built="1" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_row _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_column type="4_4" _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"][et_pb_text _builder_version="4.27.5" _module_preset="default" global_colors_info="{}"]

Congratulations to Simon Dawes, Martin Crow and Gary Hunt on the latest paper published by the ExoClock project of which they are co authors ''ExoClock Project IV: A homogeneous catalogue of 620 updated exoplanet ephemerides''  To see a copy of the paper click on the link below.

https://arxiv.org/abs/2511.14407

Then another congratulations to Martin Crow for being a co author on the following paper titled ''TrES-1b: A Case study in detecting Secular Evolution of Exoplanet Orbits.''  To see a copy of the paper click the link below.

https://arxiv.org/abs/2508.15075

[/et_pb_text][/et_pb_column][/et_pb_row][/et_pb_section]

The latest Exoplanet Transits by Simon Dawes

Below are the latest Exoplanet Transit observations carried out by CMHASD member and trustee Simon Dawes for the ExoClock project.

TOI-1259 A b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.441 Jupiters, it takes 3.5 days to complete one orbit of its star, and is 0.0407 AU from its star. Its discovery was announced in 2021. Ref: https://science.nasa.gov/exoplanet-catalog/toi-1259-a-b/

HAT-P-56 b is a gas giant exoplanet that orbits an F-type star. Its mass is 2.31 Jupiters, it takes 2.8 days to complete one orbit of its star, and is 0.0423 AU from its star. Its discovery was announced in 2015. Ref:https://science.nasa.gov/exoplanet-catalog/hat-p-56-b/

Qatar-9 b is a gas giant exoplanet that orbits a K-type star. Its mass is 1.19 Jupiters, it takes 1.5 days to complete one orbit of its star, and is 0.0234 AU from its star. Its discovery was announced in 2019. Ref:https://science.nasa.gov/exoplanet-catalog/qatar-9-b/

Qatar-8 b is a gas giant exoplanet that orbits a G-type star. Its mass is 0.371 Jupiters, it takes 3.7 days to complete one orbit of its star, and is 0.0474 AU from its star. Its discovery was announced in 2019. Ref:https://science.nasa.gov/exoplanet-catalog/qatar-8-b/

WASP-92 b is a gas giant exoplanet that orbits an F-type star. Its mass is 0.805 Jupiters, it takes 2.2 days to complete one orbit of its star, and is 0.0348 AU from its star. Its discovery was announced in 2016. Ref: https://science.nasa.gov/exoplanet-catalog/wasp-92-b/

Latest ExoClock transit observations by Simon Dawes – July & August 2024

Five more sets of observations for the ExoClock project by member & trustee Simon Dawes.

HAT-P-19 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.277 Jupiters, it takes 4 days to complete one orbit of its star, and is 0.04599 AU from its star. Its discovery was announced in 2010. Ref:https://science.nasa.gov/exoplanet-catalog/hat-p-19-b/

 

TOI-4087 b is a gas giant exoplanet that orbits an F-type star. Its mass is 0.73 Jupiters, it takes 3.2 days to complete one orbit of its star, and is 0.04469 AU from its star. Its discovery was announced in 2023. Ref:https://science.nasa.gov/exoplanet-catalog/toi-4087-b/

 

KELT-1 b is a gas giant exoplanet that orbits an F-type star. Its mass is 27.23 Jupiters, it takes 1.2 days to complete one orbit of its star, and is 0.02466 AU from its star. Its discovery was announced in 2012. Ref: https://science.nasa.gov/exoplanet-catalog/kelt-1-b/

 

KELT-16 b is a gas giant exoplanet that orbits an F-type star. Its mass is 2.75 Jupiters, it takes 1 days to complete one orbit of its star, and is 0.02044 AU from its star. Its discovery was announced in 2017. Ref: https://science.nasa.gov/exoplanet-catalog/kelt-16-b/

 

TOI-1431 b is a gas giant exoplanet that orbits an A-type star. Its mass is 3.12 Jupiters, it takes 2.7 days to complete one orbit of its star, and is 0.046 AU from its star. Its discovery was announced in 2021. Ref: https://science.nasa.gov/exoplanet-catalog/toi-1431-b/

 

TOP