---
title: "NGC 1833"
url: "https://spacecatalog.org/object/ngc-1833"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. NGC 1833 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-1833"
---

# NGC 1833

NGC 1833 is a [nebula](https://spacecatalog.org/nebulae) with [cluster](https://spacecatalog.org/clusters) in the constellation [Mensa](https://spacecatalog.org/constellation/mensa). Other catalogues list it as 2MASX J05042444-7043409, 2MASX J05042444-7043409 ID and ESO 056-055, among 6 designations in total. It was discovered in 1836.

## At a glance

- **WHAT IT IS:** Nebula with cluster
- **HOW BIG ON THE SKY:** 1.6′ — Small enough that the full Moon would cover it several times over.
- **WHERE TO LOOK:** [Mensa](https://spacecatalog.org/constellation/mensa) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Nebula with cluster |
| CONSTELLATION | Mensa |
| RIGHT ASCENSION (J2000) | 05h 04m 24.5s |
| DECLINATION (J2000) | −70° 43′ 41.0″ |
| DISCOVERED | 1836 |

## Catalogue data

### 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 |
| --- | --- |
| Major axis | 1.6′ |
| Minor axis | 1.1′ |
| Position angle | 60° |

### WHEN IT WAS FOUND

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

| Field | Value |
| --- | --- |
| Discovered by | John Frederick William Herschel |

### OTHER NAMES AND NUMBERS

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

| Field | Value |
| --- | --- |
| OpenNGC type code | Cl+N |
| Wikidata item | Q1045581 |

## Also known as

- 2MASX: 2MASX J05042444-7043409
- 2MASX: 2MASX J05042444-7043409 ID
- ESO: ESO 056-055
- ESO: ESO 56-55
- IRAS: IRAS 05049-7047
- NGC: NGC 1833

## 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 1833 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-1833

```bibtex
@misc{spacecatalog_ngc-1833,
  author       = {{SpaceCatalog}},
  title        = {{NGC 1833}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ngc-1833},
  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-1833