HD 191939d (Q113597241)

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

5.8 Earth mass

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

0.0182±0.0182 Jupiter mass

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

catalog code

TOI-1339.03

catalog

TESS Object of Interest

1 reference

TOI-1339d

catalog

TESS Object of Interest

2 references

time of discovery or invention

TIC 269701147d

1 reference

September 2020

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

2 references

inferred from equatorial coordinates

constellation

Draco

1 reference

based on heuristic

parent astronomical body

3 references

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

object stated in reference as

HD 191939

object stated in reference as

HD 191939

argument of periapsis

15±160 degree

1 reference

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

reason for deprecated rank

orbital eccentricity

0.0

item/value with less precision and/or accuracy

2 references

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

0.031±0.018

1 reference

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

orbital inclination

89.49±0.12 degree

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

89.49±0.08 degree

1 reference

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

89.43±0.04 degree

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

orbital period

38.3561±0.0012 day

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

38.353037±0.00006 day

1 reference

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

38.3525±0.0003 day

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

semi-major axis of an orbit

0.215±0.011 astronomical unit

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

0.2132±0.0065 astronomical unit

1 reference

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

0.207±0.003 astronomical unit

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

declination component of proper motion

parallax

18.6247±0.0253 milliarcsecond

2 references

−63.909±0.047 milliarcsecond per year

2 references

right ascension component of proper motion

150.256±0.044 milliarcsecond per year

2 references

3.16±0.11 Earth radius

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

2.995±0.07 Earth radius

1 reference

HD 191939 revisited: New and refined planet mass determinations, and a new planet in the habitable zone

3.04±0.07 Earth radius

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

0.2712±0.0062 Jupiter radius

1 reference

TESS-Keck Survey. IX. Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian plus a Distant Substellar Companion

3 references

right ascension

302.0256247 degree

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

declination

66.8503014 degree

1 reference

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away