Registry · exoplanet

PDS 70 c

Exoplanet

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: 14h 08m 10.11s
Declination: −41° 23′ 52.9″
Galactic l, b: 318.06, 19.21
Magnitude V: 12.03
Distance: 113.06 pc

Planet

NASA Exoplanet Archive, composite parameters

Host star	PDS 70 · K7
Discovery	Imaging, 2019 · European Southern Observatory
Orbital period	— d
Semi-major axis	34.3 au
Eccentricity	0.037
Radius	22.194 R⊕ · 1.98 R♃
Mass	2,383.7 M⊕ · 7.5 M♃
Density	1.2 g/cm³
Equilibrium temperature	1,054 K
System distance	113.06 pc

Published measurements

5 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 3 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
2,383.713	M_earth	± 1,494	Imaging	NASA Exoplanet Archive	Wang et al. 2021	2021
635.66	M_earth	± 317.8	Imaging	NASA Exoplanet Archive	Wang et al. 2020	2020
3,333.874	M_earth	± 1,667	Imaging	NASA Exoplanet Archive	Haffert et al. 2019	2019

Radius 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
22.19378	R_earth	± 4.372	Imaging	NASA Exoplanet Archive	Wang et al. 2021	2021
22.86636	R_earth	± 6.837	Imaging	NASA Exoplanet Archive	Wang et al. 2020	2020

Semi-major axis 3 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
34.3	au	± 2.2	Imaging	NASA Exoplanet Archive	Wang et al. 2021	2021
34	au	± 6	Imaging	NASA Exoplanet Archive	Wang et al. 2020	2020
34.5	au	± 2	Imaging	NASA Exoplanet Archive	Haffert et al. 2019	2019

Eccentricity 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.037		± 0.041	Imaging	NASA Exoplanet Archive	Wang et al. 2021	2021
0.11		± 0.12	Imaging	NASA Exoplanet Archive	Wang et al. 2020	2020

Equilibrium temperature 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1,054	K	± 60	Imaging	NASA Exoplanet Archive	Wang et al. 2021	2021
995	K	± 71	Imaging	NASA Exoplanet Archive	Wang et al. 2020	2020

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
PDS 70 b	Exoplanet	0.003074″	12.03
PDS 70	Star	0.003074″	—
CD-40 8434	TTauri*	0.5921″	12.18
CD-40 8434b	Planet	0.5921″	—
CD-40 8434c	Planet	0.5921″	—
PDS 70d	Planet Candidate	0.5921″	—

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/pds-70-c · Registry entry updated 2026-08-14.