---
title: "NGC 4088"
url: "https://spacecatalog.org/object/ngc-4088"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. NGC 4088 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-4088"
---

# NGC 4088

NGC 4088 is an intermediate spiral [galaxy](https://spacecatalog.org/galaxies) SABc in the constellation [Ursa Major](https://spacecatalog.org/constellation/ursa-major), 44.22 Mly from Earth, shining at apparent magnitude 10.60 (V). Other catalogues list it as 2MASX J12053418+5032205, Arp 18 and IRAS 12030+5049, among 10 designations in total. It was discovered in 1788.

## At a glance

- **WHAT IT IS:** Intermediate spiral galaxy
- **HOW FAR:** 44.22 Mly — A luminosity distance, from its redshift — how faint it looks. The light itself left 35.1 million years ago.
- **HOW BIG ON THE SKY:** 7.0′ — About 0.2 of the full Moon's width.
- **HOW BRIGHT (V):** 10.60 — A small telescope reaches it.
- **WHERE TO LOOK:** [Ursa Major](https://spacecatalog.org/constellation/ursa-major) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Intermediate spiral galaxy SABc |
| DISTANCE FROM EARTH | 44.22 Mly ±14 — by redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc |
| APPARENT MAGNITUDE (V) | 10.60 |
| CONSTELLATION | Ursa Major |
| RIGHT ASCENSION (J2000) | 12h 05m 34.2s |
| DECLINATION (J2000) | +50° 32′ 20.5″ |
| DISCOVERED | 1788 |

## 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 |
| --- | --- |
| Hubble type | SABc |

### 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) | 11.35 |
| Apparent magnitude (V) | 10.60 |
| Apparent magnitude (J) | 8.48 |
| Apparent magnitude (H band) | 7.77 |
| Apparent magnitude (K) | 7.48 |
| Surface brightness | 23.45 mag/arcsec² |

### 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 | 753 km/s |
| Redshift (z) | 0.002515 |
| Redshift (z, CMB frame) | 0.00315838 |
| Major axis | 7.01′ |
| Minor axis | 2.65′ |
| Position angle | 44° |

### WHEN IT WAS FOUND

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

| Field | Value |
| --- | --- |
| Discovered by | 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 | G |
| Wikidata item | Q1108899 |
| Wikipedia article | NGC 4088 |

## Also known as

- 2MASX: 2MASX J12053418+5032205
- Arp: Arp 18
- IRAS: IRAS 12030+5049
- IRAS: IRAS F12030+5049
- LEDA: LEDA 38302
- MCG: MCG +09-20-089
- NGC: NGC 4088
- PGC: PGC 38302
- SDSS: SDSS J120534.21+503221.5
- UGC: UGC 7081

## 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 4088 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-4088

```bibtex
@misc{spacecatalog_ngc-4088,
  author       = {{SpaceCatalog}},
  title        = {{NGC 4088}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ngc-4088},
  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-4088