| 31. | In 1902, William Wallace Campbell reported that ? Geminorum showed radial velocity variations.
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| 32. | After follow-up observations using radial velocity, the planet was confirmed.
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| 33. | Both groups detected this planet using the radial velocity method.
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| 34. | Observations at Yerkes Observatory had measured its radial velocity as 62 km / s.
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| 35. | Like most planet candidates so far, it was detected with the radial velocity method.
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| 36. | SOPHIE uses radial velocity measurements to examine stars for exoplanets.
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| 37. | Since radial velocity can be measured with a spectrometer by observing the resolving power.
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| 38. | In 1997, an extrasolar planet was announced on the basis of radial velocity measurements.
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| 39. | Radial velocity measurements indicated gravitational perturbations of the star being caused by orbiting objects.
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| 40. | His primary research interest is studying radial velocity and transit techniques in extrasolar planets.
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