Key parameters at a glance

A radius of 2.28 Earth radii
A mass of 5.80 Earth masses
Surface gravity around 1.12 g
An orbital period of 7.603 days
Semi-major axis 0.0779 AU
Distance from Earth 178.18 light-years
Earth Similarity Index 0.737
Travel time at Voyager 1 speed 3,142,204 years

1 sibling around DMPP-6

DMPP-6 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
DMPP-6 b this	Sub-Neptune	2.28	5.80	7.603	—	2026
DMPP-6 c	Sub-Neptune	3.74	13.47	36.441	—	2026

DMPP-6 b Planet Profile

Physical Specs

Radius

2.28 R⊕

Radius (Jupiter)

0.203 R♃

Mass

5.80 M⊕

Mass (Jupiter)

0.018 M♃

Density

2.69 g/cm³

Surface Gravity

1.12 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.737

HZ Position Unknown

Controversial No

Discovery

Year 2026

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1536of 1978

top 77.6%

This planet

2.28R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

TOI-763 b 2.28 R⊕ GJ 806 c 2.28 R⊕ Kepler-1020 b 2.28 R⊕

Metric	Earth	DMPP-6 b	Jupiter
Radius (R⊕)	1.00	2.28	11.21
Mass (M⊕)	1.00	5.80	317.83
Density (g/cm³)	5.51	2.69	1.33
Surface Gravity (g)	1.00	1.12	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	5.800 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 67200

HIP

HIP 39242

TIC

TIC 306668068

Gaia DR2

Gaia DR2 5270480576538756352

Gaia DR3

Gaia DR3 5270480576538756352

System

DMPP-6

Percentile among Sub-Neptune cohort

Radius 2.280 R⊕ · percentile 22 / cohort 1978

Mass 5.800 M⊕ · percentile 21 / cohort 1978

Orbital period 7.60 d · percentile 25 / cohort 1946

Distance 54.63 pc · percentile 12 / cohort 1975

ESI 0.737 · percentile 96 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

7.603 days

Semi-major axis

0.0779 AU

Eccentricity

0.340

Inclination

— °

Year Length

A year here lasts approximately 7.60 Earth days (2.1% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.0779 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.737

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Standing et al. 2026

Instrument

Multiple Instruments

Publication

2026-02

Observation locale

Ground

Discovery cohort

Planets confirmed in 2026 at Multiple Observatories (12 shown).

TOI-4336 A c · Super-Earth GJ 887 d · Sub-Neptune HD 176986 d · Sub-Neptune GJ 887 e · Rocky Terrestrial DMPP-6 c · Sub-Neptune DMPP-9 b · Sub-Neptune TOI-5789 d · Super-Earth TOI-5789 e · Sub-Neptune HD 85426 c · Sub-Neptune DMPP-2 c · Neptune-like DMPP-7 b · Neptune-like TOI-375 d · Gas Giant

Host System: DMPP-6

Spectral Class

F-type yellow-white

Effective Temperature

6,182 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.270 R☉

Stellar Mass

1.079 M☉

Metallicity [Fe/H]

0.32

Extended Stellar Properties

Surface gravity (log g)

4.314 dex

Stellar density

0.845 g/cm³

Systemic radial velocity

15.04 km/s

Rotational v·sin i

2.40 km/s

Rotation period

19.20 days

Metallicity ratio

[M/H]

Distance

54.63 parsec

Light-years 178.18 ly

V-band magnitude

7.71 mag

Voyager-speed travel 3,142,204 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

18.276 mas

Total Proper Motion

105.694 mas/yr

PM Right Ascension

15.95 mas/yr

PM Declination

104.48 mas/yr

Galactic Cartesian (pc)

x = -0.173 · y = 0.295 · z = -0.940

Equatorial (J2000)

RA 120.38578° · Dec -70.02343°

Galactic ℓ, b

282.688° · -19.693°

Ecliptic λ, β

210.904° · -78.381°

HTM-20 index

1527664670