Registry · exoplanet

HD 154345 b

Exoplanet 52 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 17h 02m 36.59s
Declination: +47° 05′ 08.0″
Galactic l, b: 73.027, 37.66
Magnitude V: 6.76
Distance: 18.284 pc

Also known as

1 identifiers

HD 154345b

Planet

NASA Exoplanet Archive, composite parameters

Host star	HD 154345 · G9
Discovery	Radial Velocity, 2006 · W. M. Keck Observatory
Orbital period	3,280 d
Semi-major axis	4.158 au
Eccentricity	0.058
Radius	13.7 R⊕ · 1.22 R♃
Mass	376.94 M⊕ · 1.186 M♃
Density	0.806 g/cm³
Equilibrium temperature	119.21 K
System distance	18.284 pc

Published measurements

4 quantities measured more than once

One object can carry a dozen published estimates of the same quantity. The register keeps them side by side rather than picking a winner — the citation is part of the value.

Mass 8 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
376.9445	M_earth	± 30.19	Radial Velocity	NASA Exoplanet Archive	Giovinazzi et al. 2025	2025
378.2158	M_earth	± 44.5	Radial Velocity	NASA Exoplanet Archive	Xiao et al. 2023	2023
3,794.871	M_earth		Radial Velocity	NASA Exoplanet Archive	Kiefer et al. 2021	2021
287.6347	M_earth	± 22.57	Radial Velocity	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
260.6206	M_earth	± 22.25	Radial Velocity	NASA Exoplanet Archive	Stassun et al. 2017	2017
365.5045	M_earth	± 9.535	Radial Velocity	NASA Exoplanet Archive	Bryan et al. 2016	2016
317.8	M_earth	± 95.3	Radial Velocity	NASA Exoplanet Archive	Boisse et al. 2012	2012
300.972	M_earth	± 28.6	Radial Velocity	NASA Exoplanet Archive	Wright et al. 2008	2008

Orbital period 8 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
3,280	d	± 29	Radial Velocity	NASA Exoplanet Archive	Giovinazzi et al. 2025	2025
3,340	d	± 40	Radial Velocity	NASA Exoplanet Archive	Xiao et al. 2023	2023
3,342	d		Radial Velocity	NASA Exoplanet Archive	Kiefer et al. 2021	2021
3,420	d	± 61	Radial Velocity	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
3,341.559	d	± 93	Radial Velocity	NASA Exoplanet Archive	Stassun et al. 2017	2017
3,267	d	± 33	Radial Velocity	NASA Exoplanet Archive	Bryan et al. 2016	2016
3,538	d	± 300	Radial Velocity	NASA Exoplanet Archive	Boisse et al. 2012	2012
3,342	d	± 95	Radial Velocity	NASA Exoplanet Archive	Wright et al. 2008	2008

Semi-major axis 6 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
4.158	au	± 0.066	Radial Velocity	NASA Exoplanet Archive	Giovinazzi et al. 2025	2025
4.2	au	± 0.14	Radial Velocity	NASA Exoplanet Archive	Xiao et al. 2023	2023
4.272	au	± 0.086	Radial Velocity	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
4.21	au	± 0.1	Radial Velocity	NASA Exoplanet Archive	Stassun et al. 2017	2017
4.3	au	± 0.4	Radial Velocity	NASA Exoplanet Archive	Boisse et al. 2012	2012
4.19	au	± 0.26	Radial Velocity	NASA Exoplanet Archive	Wright et al. 2008	2008

Eccentricity 7 values

Value	Uncertainty	Band / method	Source	Reference	Year
0.058	± 0.019	Radial Velocity	NASA Exoplanet Archive	Giovinazzi et al. 2025	2025
0.157	± 0.03	Radial Velocity	NASA Exoplanet Archive	Xiao et al. 2023	2023
0.038	± 0.036	Radial Velocity	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
0.04	± 0.05	Radial Velocity	NASA Exoplanet Archive	Stassun et al. 2017	2017
0.038	± 0.027	Radial Velocity	NASA Exoplanet Archive	Bryan et al. 2016	2016
0.26	± 0.15	Radial Velocity	NASA Exoplanet Archive	Boisse et al. 2012	2012
0.044	± 0.046	Radial Velocity	NASA Exoplanet Archive	Wright et al. 2008	2008

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 154345	HighPM*	13.37″	—
RX J1702.8+4712	SB*	494.5″	10.18
SDSS J170146.62+470635.4	QSO	517.7″	—

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/hd-154345-b · Registry entry updated 2026-08-14.