---
title: "ESO 438-004"
url: "https://spacecatalog.org/object/eso-438-004"
release: "DR1"
licence: "VizieR terms; cite Dalya+ 2022 (2022MNRAS.514.1403D)"
citation: "SpaceCatalog. ESO 438-004 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/eso-438-004"
---

# ESO 438-004

ESO 438-004 is a [galaxy](https://spacecatalog.org/galaxies) in the constellation [Hydra](https://spacecatalog.org/constellation/hydra), 1.395 Gly from Earth, shining at apparent magnitude 15.90 (B). Other catalogues list it as 2MASX 11082458-3051592 and WISExSCOS J110824.57-305158.9.

## At a glance

- **WHAT IT IS:** Galaxy
- **HOW FAR:** 1.395 Gly — A luminosity distance, from its redshift — how faint it looks. The light itself left 1.21 billion years ago.
- **HOW BRIGHT (B):** 15.90 — Faint: it takes a large telescope.
- **WHERE TO LOOK:** [Hydra](https://spacecatalog.org/constellation/hydra) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Galaxy |
| DISTANCE FROM EARTH | 1.395 Gly ±0.07 — by luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc |
| APPARENT MAGNITUDE (B) | 15.90 |
| ABSOLUTE MAGNITUDE (B) | −22.26 |
| CONSTELLATION | Hydra |
| RIGHT ASCENSION (J2000) | 11h 08m 24.6s |
| DECLINATION (J2000) | −30° 51′ 59.3″ |

## 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 |
| --- | --- |
| Stellar mass | 2.11×10¹¹ ±2.9×10¹⁰ M☉ |

### 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) | 15.90 |
| Apparent magnitude (J) | 13.17 |
| Apparent magnitude (H band) | 12.43 |
| Apparent magnitude (K) | 12.09 |

### 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 |
| --- | --- |
| Redshift (z) | 0.09225 |
| Redshift (z, CMB frame) | 0.093434 |

## Also known as

- 2MASX: 2MASX 11082458-3051592
- WISExSCOS: WISExSCOS J110824.57-305158.9

## Source

[GLADE+ (Galaxy List for the Advanced Detector Era)](https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/291) — VizieR terms; cite Dalya+ 2022 (2022MNRAS.514.1403D)

The producer asks: Dálya et al. 2022, MNRAS 514, 1403 (2022MNRAS.514.1403D) — "Please cite this paper when using GLADE+ data" — via VizieR VII/291. This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier). The original description of the VizieR service was published in 2000, A&AS 143, 23.

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

## Cite this page

SpaceCatalog. ESO 438-004 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/eso-438-004

```bibtex
@misc{spacecatalog_eso-438-004,
  author       = {{SpaceCatalog}},
  title        = {{ESO 438-004}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/eso-438-004},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from GLADE+ (Galaxy List for the Advanced Detector Era).}
}
```

GLADE+ (Galaxy List for the Advanced Detector Era) — VizieR terms; cite Dalya+ 2022 (2022MNRAS.514.1403D)

Acknowledgement the producer asks for: Dálya et al. 2022, MNRAS 514, 1403 (2022MNRAS.514.1403D) — "Please cite this paper when using GLADE+ data" — via VizieR VII/291. This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier). The original description of the VizieR service was published in 2000, A&AS 143, 23.

The page itself, with its pictures, the sky map and the observing tools: https://spacecatalog.org/object/eso-438-004