---
title: "NGC 4707"
url: "https://spacecatalog.org/object/ngc-4707"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. NGC 4707 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-4707"
---

# NGC 4707

NGC 4707 is a spiral [galaxy](https://spacecatalog.org/galaxies) Sm in the constellation [Canes Venatici](https://spacecatalog.org/constellation/canes-venatici), 30.03 Mly from Earth, shining at apparent magnitude 12.97 (V). Other catalogues list it as LEDA 43255, MCG +09-21-050 and PGC 43255, among 5 designations in total. It was discovered in 1789.

## At a glance

- **WHAT IT IS:** Spiral galaxy
- **HOW FAR:** 30.03 Mly — A luminosity distance, from its redshift — how faint it looks. The light itself left 21.8 million years ago.
- **HOW BIG ON THE SKY:** 2.2′ — Small enough that the full Moon would cover it several times over.
- **HOW BRIGHT (V):** 12.97 — A small telescope reaches it.
- **WHERE TO LOOK:** [Canes Venatici](https://spacecatalog.org/constellation/canes-venatici) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Spiral galaxy Sm |
| DISTANCE FROM EARTH | 30.03 Mly ±14 — by redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc |
| APPARENT MAGNITUDE (V) | 12.97 |
| CONSTELLATION | Canes Venatici |
| RIGHT ASCENSION (J2000) | 12h 48m 22.9s |
| DECLINATION (J2000) | +51° 09′ 52.9″ |
| DISCOVERED | 1789 |

## 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 | Sm |

### 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) | 13.46 |
| Apparent magnitude (V) | 12.97 |
| Surface brightness | 23.82 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 | 468 km/s |
| Redshift (z) | 0.001561 |
| Redshift (z, CMB frame) | 0.0021464 |
| Major axis | 2.19′ |
| Minor axis | 2′ |
| Position angle | 25° |

### 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 | Q633795 |
| Wikipedia article | NGC 4707 |

## Also known as

- LEDA: LEDA 43255
- MCG: MCG +09-21-050
- NGC: NGC 4707
- PGC: PGC 43255
- UGC: UGC 7971

## 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 4707 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ngc-4707

```bibtex
@misc{spacecatalog_ngc-4707,
  author       = {{SpaceCatalog}},
  title        = {{NGC 4707}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ngc-4707},
  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-4707