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HD 192699

HD 192699 is a yellow subgiant star located approximately 214 light-years away in the constellation of Aquila. It has the apparent magnitude of 6.45. Based on its mass of 1.68 solar, it was an A-type star when it was a main-sequence. We report precision Doppler measurements of three intermediate-mass subgiants from Lick and Keck Observatories in Mount Hamilton (California) and Mauna Kea (Hawai'i), USA. All three stars show variability in their radial velocities consistent with planet-mass companions in Keplerian orbits. In April 2007, a planet was announced orbiting the star, together with HD 175541 b and HD 210702 b.

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Coordinates: 20^h 16^m 06.0043^s, +04° 34′ 50.863″

4 Arietis

4 Arietis (abbreviated 4 Ari) is a star in the northern constellation of Aries, the ram. 4 Arietis is the Flamsteed designation. Its apparent magnitude is 5.86. It has an annual parallax shift of 11.85 ± 0.25 mas, which corresponds to a distance from Earth of 275 light-years (84 parsecs). It has an apparent visual magnitude of 5.86, making it visible to the naked eye from dark suburban skies. This is a B-type main sequence star with a stellar classification of B9.5 V. It has around 2.5 times the mass of the Sun and shines with 40 times the Sun's luminosity.

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