---
title: "IC1821 NED01"
url: "https://spacecatalog.org/object/ic1821-ned01"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. IC1821 NED01 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ic1821-ned01"
---

# IC1821 NED01

IC1821 NED01 is a [galaxy](https://spacecatalog.org/galaxies) in the constellation [Aries](https://spacecatalog.org/constellation/aries), 567.7 Mly from Earth, shining at apparent magnitude 15.65 (B). Other catalogues list it as 2MASXJ02362546+1346496 and PGC 9898.

## At a glance

- **WHAT IT IS:** Galaxy
- **HOW FAR:** 567.7 Mly — A luminosity distance, from its redshift — how faint it looks. The light itself left 546 million years ago.
- **HOW BIG ON THE SKY:** 42″ — Small enough that the full Moon would cover it several times over.
- **HOW BRIGHT (B):** 15.65 — Faint: it takes a large telescope.
- **WHERE TO LOOK:** [Aries](https://spacecatalog.org/constellation/aries) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Galaxy |
| DISTANCE FROM EARTH | 567.7 Mly ±27 — by redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc |
| APPARENT MAGNITUDE (B) | 15.65 |
| CONSTELLATION | Aries |
| RIGHT ASCENSION (J2000) | 02h 36m 25.4s |
| DECLINATION (J2000) | +13° 46′ 48.6″ |

## 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) | 15.65 |
| Apparent magnitude (J) | 12.63 |
| Apparent magnitude (H band) | 11.94 |
| Apparent magnitude (K) | 11.65 |

### 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 | 11 833 km/s |
| Redshift (z) | 0.040281 |
| Redshift (z, CMB frame) | 0.0394682 |
| Major axis | 0.7′ |
| Minor axis | 0.3′ |
| Position angle | 45° |

### 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 |

## Also known as

- OpenNGC: IC1821 NED01
- Other: 2MASXJ02362546+1346496
- PGC: PGC 9898

## 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. IC1821 NED01 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/ic1821-ned01

```bibtex
@misc{spacecatalog_ic1821-ned01,
  author       = {{SpaceCatalog}},
  title        = {{IC1821 NED01}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/ic1821-ned01},
  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/ic1821-ned01