(Q204500)

Planet engulfment by ~1.5-3 M☉ red giants

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

International Astronomical Union

unconfirmed exoplanet

1 reference

1 reference

Planet 18 Delphini b.png
989 × 644; 343 KB

0 references

name

Arion (English)

named by

1 reference

reference URL

https://www.iau.org/news/pressreleases/detail/iau1514/

mass

10.3 Jupiter mass

1 reference

time of discovery or invention

catalog code

HD 199665b

catalog

Henry Draper Catalogue

1 reference

TIC 354489950b

1 reference

June 2008

1 reference

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

2 references

inferred from equatorial coordinates

constellation

Delphinus

1 reference

based on heuristic

parent astronomical body

3 references

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

object stated in reference as

18 Del

object stated in reference as

18 Del

argument of periapsis

64.11±57.98 degree

1 reference

Revisiting Planetary Systems in Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and multiplicity-metallicity trend around evolved stars

166.1±6.5 degree

1 reference

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

M sin i

9.84±0.3 Jupiter mass

1 reference

Planet engulfment by ~1.5-3 M☉ red giants

9.207±0.16 Jupiter mass

1 reference

Revisiting Planetary Systems in Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and multiplicity-metallicity trend around evolved stars

10.3 Jupiter mass

2 references

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

Determining the true mass of radial-velocity exoplanets with Gaia. Nine planet candidates in the brown dwarf or stellar regime and 27 confirmed planets

orbital eccentricity

0.08±0.01

1 reference

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

0.024±0.018

1 reference

Revisiting Planetary Systems in Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and multiplicity-metallicity trend around evolved stars

orbital period

982.85±1.06 day

1 reference

Revisiting Planetary Systems in Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and multiplicity-metallicity trend around evolved stars

993.3±3.2 day

1 reference

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

semi-major axis of an orbit

2.6 astronomical unit

1 reference

Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688

2.54±0.04 astronomical unit

1 reference

Planet engulfment by ~1.5-3 M☉ red giants

2.476±0.002 astronomical unit

1 reference

Revisiting Planetary Systems in Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and multiplicity-metallicity trend around evolved stars

declination component of proper motion

parallax

13.0922±0.1062 milliarcsecond

2 references

−34.198±0.175 milliarcsecond per year

2 references

right ascension component of proper motion

−50.034±0.147 milliarcsecond per year

2 references

3 references