---
title: "NGC 2183"
url: "https://spacecatalog.org/object/ngc-2183"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. NGC 2183 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-2183"
---

# NGC 2183

NGC 2183 is an H II region in the constellation [Monoceros](https://spacecatalog.org/constellation/monoceros), shining at apparent magnitude 15.15 (B). Other catalogues list it as Ced 69, IRAS 06084-0611 and LBN 996, among 7 designations in total. It was discovered in 1864.

## At a glance

- **WHAT IT IS:** H II region
- **HOW BIG ON THE SKY:** 12.0′ — About 0.4 of the full Moon's width.
- **HOW BRIGHT (B):** 15.15 — Faint: it takes a large telescope.
- **WHERE TO LOOK:** [Monoceros](https://spacecatalog.org/constellation/monoceros) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | H II region |
| APPARENT MAGNITUDE (B) | 15.15 |
| CONSTELLATION | Monoceros |
| RIGHT ASCENSION (J2000) | 06h 10m 46.9s |
| DECLINATION (J2000) | −06° 12′ 42.6″ |
| DISCOVERED | 1864 |

## Catalogue data

### HOW BRIGHT IT IS

What the light adds up to, measured through one filter at a time. A magnitude is a brightness on a backwards scale — the smaller the number, the brighter the object.

| Field | Value |
| --- | --- |
| Apparent magnitude (B) | 15.15 |

### WHERE IT IS AND HOW IT MOVES

Position, motion across the sky and the size it covers on it. These are measurements of the object as seen from here, so every one of them depends on where here is.

| Field | Value |
| --- | --- |
| Radial velocity | 24 km/s |
| Redshift (z) | 8×10⁻⁵ |
| Major axis | 12′ |

### WHEN IT WAS FOUND

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

| Field | Value |
| --- | --- |
| Discovered by | Heinrich Louis d'Arrest |

### OTHER NAMES AND NUMBERS

The identifiers other catalogues file this object under, for anyone joining this data to theirs.

| Field | Value |
| --- | --- |
| OpenNGC type code | HII |
| Wikidata item | Q1047348 |

## Also known as

- Cederblad: Ced 69
- IRAS: IRAS 06084-0611
- LBN: LBN 996
- LEDA: LEDA 1035508
- Lynds: LBN 213.83-11.89
- MWSC: MWSC 779
- NGC: NGC 2183

## Source

[OpenNGC](https://github.com/mattiaverga/OpenNGC) — CC-BY-SA-4.0

The producer asks: OpenNGC, Mattia Verga (github.com/mattiaverga/OpenNGC). Fields derived from it stay under CC BY-SA 4.0.

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

## Cite this page

SpaceCatalog. NGC 2183 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-2183

```bibtex
@misc{spacecatalog_ngc-2183,
  author       = {{SpaceCatalog}},
  title        = {{NGC 2183}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ngc-2183},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from OpenNGC.}
}
```

OpenNGC — CC-BY-SA-4.0

Acknowledgement the producer asks for: OpenNGC, Mattia Verga (github.com/mattiaverga/OpenNGC). Fields derived from it stay under CC BY-SA 4.0.

The page itself, with its pictures, the sky map and the observing tools: https://spacecatalog.org/object/ngc-2183