A Sun-like star in the constellation Delphinus
around which has been found a three-Jupiter-mass
extrasolar planet of the epistellar
Jovian type.1 Spectroscopic measurements of the host suggest
that it is has a "quiet" chromosphere
(an important factor in its suitability to support nearby life) and a metal-content
somewhat greater than that of the Sun.
| Host star
||65.3 light-years (20 pc)
||5,330°C (5,799 K)
||3.43 ± 0.4
||0.14 AU (21 million km, 13 million miles)
||18.3 ± 0.2 days
||0.05 ± 0.04
||1998 by Marcy et al., Lick and Keck Obs.
- Fischer, D., Marcy, G., Butler, P., Vogt, S., and Apps, K. , 1998.
"Planetary companions around two solar type stars: HD 195019 and HD
217107," PASP, 111, 50.
PLANETS AND SUBSTELLAR OBJECTS