(Q2876889)

time of discovery or invention

catalog code

HD 181720b

catalog

Henry Draper Catalogue

1 reference

TIC 112243062b

1 reference

19 October 2009

1 reference

imported from Wikimedia project

English Wikipedia

March 2010

1 reference

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

2 references

inferred from equatorial coordinates

constellation

Sagittarius

1 reference

based on heuristic

parent astronomical body

3 references

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

object stated in reference as

HD 181720

object stated in reference as

HD 181720

argument of periapsis

177±12 degree

1 reference

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

M sin i

0.37 Jupiter mass

1 reference

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

0.4±0.06 Jupiter mass

1 reference

Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes

orbital eccentricity

0.26±0.06

2 references

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes

orbital inclination

1.75 degree

1 reference

Mass constraints on substellar companion candidates from the re-reducedHipparcosintermediate astrometric data: nine confirmed planets and two confirmed brown dwarfs

orbital period

956±14 day

2 references

Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

semi-major axis of an orbit

1.78 astronomical unit

1 reference

The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984

1.85±0.04 astronomical unit

1 reference

Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes

angular distance

0.031786 arcsecond

1 reference

Extrasolar Planets Encyclopaedia exoplanet ID

HD 181720 b

parallax

16.5816±0.0664 milliarcsecond

2 references

declination component of proper motion

−415.038±0.082 milliarcsecond per year

2 references

right ascension component of proper motion

88.154±0.098 milliarcsecond per year

2 references

3 references