---
title: "OGLE-2018-BLG-0506L b"
url: "https://spacecatalog.org/object/ogle-2018-blg-0506l-b"
release: "DR1"
licence: "No licence stated; acknowledgement requested"
citation: "SpaceCatalog. OGLE-2018-BLG-0506L b [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ogle-2018-blg-0506l-b"
---

# OGLE-2018-BLG-0506L b

OGLE-2018-BLG-0506L b is a Neptune-like [planet](https://spacecatalog.org/planets) in the constellation [Scorpius](https://spacecatalog.org/constellation/scorpius), 18 265 ly from Earth. It orbits OGLE-2018-BLG-0506L at a mean distance of 3 AU. It has a mass of 16.30 M⊕ and a radius of 4.18 R⊕ · 26 660 km. It was discovered in 2022.

## At a glance

- **WHAT IT IS:** Neptune-like planet
- **HOW FAR:** 18 265 ly — The light arriving now left it that long ago.
- **HOW BIG:** 4.18 R⊕ · 26 660 km — Its radius: half the width across.
- **WHERE TO LOOK:** [Scorpius](https://spacecatalog.org/constellation/scorpius) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Neptune-like planet |
| MASS | 16.30 M⊕ +12 / −8.5 |
| RADIUS | 4.18 R⊕ · 26 660 km |
| DISTANCE FROM EARTH | 18 265 ly +4566 / −5219 — by NASA Exoplanet Archive sy\_dist (Hwang+ 2022, 2022AJ....163...43H) |
| ORBITS | OGLE-2018-BLG-0506L |
| SEMI-MAJOR AXIS | 3 AU +0.7 / −0.8 |
| CONSTELLATION | Scorpius |
| RIGHT ASCENSION (J2000) | 17h 50m 31.2s |
| DECLINATION (J2000) | −31° 55′ 26.6″ |
| DISCOVERED | 2022 |

## Catalogue data

### WHAT KIND OF THING IT IS

What the object is in itself, rather than how it happens to look from here.

| Field | Value |
| --- | --- |
| Host star mass | 0.63 +0.37 / −0.32 M☉ |

### THE ORBIT

The shape of the path, where the object sits on it, and the instant those figures were true of. An orbit is a fit to observations and drifts away from the real one either side of its epoch.

| Field | Value |
| --- | --- |
| Host star | OGLE-2018-BLG-0506L |
| Stars in system | 1 |
| Planets in system | 1 |

### WHEN IT WAS FOUND

Who first saw it, from where, and by what method.

| Field | Value |
| --- | --- |
| Discovery method | Microlensing |
| Discovered at | OGLE |

## Also known as

- Exoplanet: OGLE-2018-BLG-0506L b
- Host star: OGLE-2018-BLG-0506L

## Source

[NASA Exoplanet Archive (Planetary Systems Composite Parameters)](https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars) — No licence stated; acknowledgement requested

The producer asks: This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Cite Christiansen et al. (2025), Planetary Science Journal (doi:10.3847/PSJ/ade3c2), and the literature reference given with each value.

How this was made: https://spacecatalog.org/methods#source-exoplanet-archive

## Cite this page

SpaceCatalog. OGLE-2018-BLG-0506L b \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ogle-2018-blg-0506l-b

```bibtex
@misc{spacecatalog_ogle-2018-blg-0506l-b,
  author       = {{SpaceCatalog}},
  title        = {{OGLE-2018-BLG-0506L b}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ogle-2018-blg-0506l-b},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from NASA Exoplanet Archive (Planetary Systems Composite Parameters).}
}
```

NASA Exoplanet Archive (Planetary Systems Composite Parameters) — No licence stated; acknowledgement requested

Acknowledgement the producer asks for: This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Cite Christiansen et al. (2025), Planetary Science Journal (doi:10.3847/PSJ/ade3c2), and the literature reference given with each value.

The page itself, with its pictures, the sky map and the observing tools: https://spacecatalog.org/object/ogle-2018-blg-0506l-b