Key parameters at a glance

A radius of 4.86 Earth radii
A mass of 21.00 Earth masses
Surface gravity around 0.89 g
Semi-major axis 2.7000 AU
Distance from Earth 10,763.15 light-years
Earth Similarity Index 0.485
Travel time at Voyager 1 speed 189,808,104 years

OGLE-2015-BLG-0966L b Planet Profile

Physical Specs

Radius

4.86 R⊕

Radius (Jupiter)

0.433 R♃

Mass

21.00 M⊕

Mass (Jupiter)

0.066 M♃

Density

1.01 g/cm³

Surface Gravity

0.89 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.485

HZ Position Unknown

Controversial No

Discovery

Year 2016

Method Microlensing

Facility OGLE

Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#405of 574

top 70.4%

This planet

4.86R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

KMT-2021-BLG-0736L b 4.86 R⊕ Kepler-858 b 4.87 R⊕ Kepler-712 c 4.85 R⊕

Metric	Earth	OGLE-2015-BLG-0966L b	Jupiter
Radius (R⊕)	1.00	4.86	11.21
Mass (M⊕)	1.00	21.00	317.83
Density (g/cm³)	5.51	1.01	1.33
Surface Gravity (g)	1.00	0.89	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	21.000 M⊕	Direct mass measurement (not derived).

Percentile among Neptune-like cohort

Radius 4.860 R⊕ · percentile 29 / cohort 574

Mass 21.000 M⊕ · percentile 32 / cohort 574

Distance 3,300.00 pc · percentile 92 / cohort 572

ESI 0.485 · percentile 88 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

— days

Semi-major axis

2.7000 AU

Eccentricity

—

Inclination

— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.485

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Street et al. 2016

Instrument

OGLE CCD Array

Publication

2016-03

Observation locale

Ground

Discovery cohort

Planets confirmed in 2016 at OGLE (6 shown).

OGLE-2014-BLG-0676L b · Gas Giant OGLE-2012-BLG-0950L b · Neptune-like OGLE-2014-BLG-1760L b · Gas Giant OGLE-2007-BLG-349L AB c · Gas Giant OGLE-2015-BLG-0051L b · Gas Giant OGLE-2012-BLG-0724L b · Gas Giant

Host System: OGLE-2015-BLG-0966L

Spectral Class

Unknown

Effective Temperature

—

Estimated Age

—

Stellar Radius

—

Stellar Mass

0.380 M☉

Metallicity [Fe/H]

—

Distance

3,300.00 parsec

Light-years 10,763.15 ly

V-band magnitude

— mag

Voyager-speed travel 189,808,104 yr

Similar Worlds

KMT-2021-BLG-0736L b

Neptune-like · Unknown

Radius 4.86 R⊕ · 22,830.9 ly

OGLE-2018-BLG-0516L b

Neptune-like · Unknown

Radius 4.73 R⊕ · 22,830.9 ly

OGLE-2007-BLG-368L b

Neptune-like · Unknown

Radius 4.72 R⊕ · 19,243.2 ly

KMT-2021-BLG-2294L b

Neptune-like · Unknown

Radius 5.02 R⊕ · 22,178.6 ly

KMT-2021-BLG-1253L b

Neptune-like · Unknown

Radius 4.59 R⊕ · 21,656.8 ly

KMT-2024-BLG-1281L b

Neptune-like · Unknown

Radius 4.59 R⊕ · 23,418.0 ly

Explore Related Categories

Neptune-like Planets Microlensing Discoveries OGLE Mission