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As part of our ongoing effort to investigate transit timing variations (TTVs) of known exoplanets, we monitored transits of the four exoplanets HAT-P-18b, HAT-P-19b, HAT-P-27b/WASP-40b and WASP-21b. All of them are suspected to show TTVs due to the known properties of their host systems based on the respective discovery papers. During the past three years 46 transit observations were carried out, mostly using telescopes of the Young Exoplanet Transit Initiative. The analyses are used to refine the systems' orbital parameters. In all cases we found no hints for significant TTVs, or changes in the system parameters inclination, fractional stellar radius and planet-to-star radius ratio. However, comparing our results with those available in the literature shows that we can confirm the already published values.📍 Venue: Roseland Theater
🏠 Address: 10 Northwest 6th Ave.
🗺️ Extended Address: Portland, OR 97209
🌆 City: Portland
📍 Location: 45.5232, -122.676Error occurred: DateTime::__construct(): Failed to parse time string (Roseland Theater) at position 0 (R): The timezone could not be found in the database
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Event Venue & Nearby Stays
Roseland Theater, 10 Northwest 6th Ave., Portland, OR 97209, US, United States
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