---
title: "NGC 1737"
url: "https://spacecatalog.org/object/ngc-1737"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. NGC 1737 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-1737"
---

# NGC 1737

NGC 1737 is an H II region in the constellation [Dorado](https://spacecatalog.org/constellation/dorado). Other catalogues list it as 2MASX J04535969-6910281, ESO 056-020 and ESO 56-20. It was discovered in 1836.

## At a glance

- **WHAT IT IS:** H II region
- **HOW BIG ON THE SKY:** 1.1′ — Small enough that the full Moon would cover it several times over.
- **WHERE TO LOOK:** [Dorado](https://spacecatalog.org/constellation/dorado) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | H II region |
| CONSTELLATION | Dorado |
| RIGHT ASCENSION (J2000) | 04h 53m 59.7s |
| DECLINATION (J2000) | −69° 10′ 28.4″ |
| 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 | 1.1′ |
| Minor axis | 0.95′ |
| Position angle | 110° |

### 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 | HII |
| Wikidata item | Q1045009 |

## Also known as

- 2MASX: 2MASX J04535969-6910281
- ESO: ESO 056-020
- ESO: ESO 56-20
- NGC: NGC 1737

## 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 1737 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-1737

```bibtex
@misc{spacecatalog_ngc-1737,
  author       = {{SpaceCatalog}},
  title        = {{NGC 1737}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ngc-1737},
  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-1737