Q:Information: - HD 171028 is a yellow main-sequence star in the constellation of Ophiuchus. The apparent magnitude is +8.31, visible in good binoculars. Unlike most planet-harboring stars, it does not have a Hipparcos number, though the distance was estimated at 907.8 parsecs. In the summer of 2007, a planet was discovered. - 51 Pegasi b (abbreviated 51 Peg b), unofficially dubbed Bellerophon, later named Dimidium, is an extrasolar planet approximately 50 light-years away in the constellation of Pegasus. It was the first exoplanet to be discovered orbiting a main-sequence star, the Sun-like 51 Pegasi, and marked a breakthrough in astronomical research. It is the prototype for a class of planets called hot Jupiters. - HD 171028 b is a > 1.83 MJ exoplanet orbiting very eccentrically around HD 171028 . The period is 1.47 years and semi-major axis of 1.29 AU . The Geneva Extrasolar Planet Search team announced the discovery of planet on July 13 , 2007 . - The Geneva Extrasolar Planet Search is a variety of observational programs run by the Geneva Observatory located at Versoix, a small town near Geneva, Switzerland. The programs are executed by M. Mayor, D. Naef, F. Pepe, D. Queloz, N.C. Santos, and S. Udry using several telescopes and instruments in the Northern and Southern Hemisphere and have resulted in the discovery of numerous extrasolar planets, including 51 Pegasi b, the first ever confirmed exoplanet orbiting a main-sequence star. - Ophiuchus is a large constellation located around the celestial equator. Its name is from the Greek "Ophioukhos"; "serpent-bearer", and it is commonly represented as a man grasping the snake that is represented by the constellation Serpens. Ophiuchus was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern constellations. It was formerly referred to as Serpentarius and "Anguitenens". After reading the paragraphs above, we are interested in knowing the entity with which 'hd 171028 b' exhibits the relationship of 'constellation'. Find the answer from the choices below. Choices: - ophiuchus - pegasus
A:
ophiuchus