---
title: "IC 4282"
url: "https://spacecatalog.org/object/ic-4282"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. IC 4282 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ic-4282"
---

# IC 4282

IC 4282 is a [galaxy](https://spacecatalog.org/galaxies) in the constellation [Canes Venatici](https://spacecatalog.org/constellation/canes-venatici), shining at apparent magnitude 17.83 (B). Other catalogues list it as LEDA 3556145, PGC 3556145 and SDSS J133119.76+471101.8, among 6 designations in total. It was discovered in 1899.

## At a glance

- **WHAT IT IS:** Galaxy
- **HOW BIG ON THE SKY:** 24″ — Small enough that the full Moon would cover it several times over.
- **HOW BRIGHT (B):** 17.83 — Faint: it takes a large telescope.
- **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 | Galaxy |
| APPARENT MAGNITUDE (B) | 17.83 |
| CONSTELLATION | Canes Venatici |
| RIGHT ASCENSION (J2000) | 13h 31m 19.8s |
| DECLINATION (J2000) | +47° 11′ 01.9″ |
| DISCOVERED | 1899 |

## Catalogue data

### 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) | 17.83 |
| Surface brightness | 24.59 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 |
| --- | --- |
| Major axis | 0.4′ |
| Minor axis | 0.38′ |
| Position angle | 156° |

### WHEN IT WAS FOUND

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

| Field | Value |
| --- | --- |
| Discovered by | James Edward Keeler |

### 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 | Q3683467 |

## Also known as

- IC: IC 4282
- LEDA: LEDA 3556145
- PGC: PGC 3556145
- SDSS: SDSS J133119.76+471101.8
- SDSS: SDSS J133119.76+471101.9
- SDSS: SDSS J133119.77+471101.9

## 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. IC 4282 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ic-4282

```bibtex
@misc{spacecatalog_ic-4282,
  author       = {{SpaceCatalog}},
  title        = {{IC 4282}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ic-4282},
  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/ic-4282