---
title: "PGC 4321544"
url: "https://spacecatalog.org/object/pgc-4321544"
release: "DR1"
licence: "VizieR terms; cite Dalya+ 2022 (2022MNRAS.514.1403D)"
citation: "SpaceCatalog. PGC 4321544 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/pgc-4321544"
---

# PGC 4321544

PGC 4321544 is a [galaxy](https://spacecatalog.org/galaxies) in the constellation [Coma Berenices](https://spacecatalog.org/constellation/coma-berenices), 33.66 Mly from Earth, shining at apparent magnitude 17.71 (B). Other catalogues list it as SDSSJ 121935.46+290500.8 and WISExSCOS J121935.50+290500.3.

## At a glance

- **WHAT IT IS:** Galaxy
- **HOW FAR:** 33.66 Mly — A luminosity distance, from its redshift — how faint it looks. The light itself left 49.4 million years ago.
- **HOW BIG ON THE SKY:** 18″ — Small enough that the full Moon would cover it several times over.
- **HOW BRIGHT (B):** 17.71 — Faint: it takes a large telescope.
- **WHERE TO LOOK:** [Coma Berenices](https://spacecatalog.org/constellation/coma-berenices) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | Galaxy |
| DISTANCE FROM EARTH | 33.66 Mly ±11 — by luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc |
| APPARENT MAGNITUDE (B) | 17.71 |
| ABSOLUTE MAGNITUDE (B) | −12.36 |
| CONSTELLATION | Coma Berenices |
| RIGHT ASCENSION (J2000) | 12h 19m 35.5s |
| DECLINATION (J2000) | +29° 05′ 01.4″ |

## 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 | 2 802 738 ±1.9×10⁶ 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) | 17.71 |

### 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) | 0.00354417 |
| Redshift (z, CMB frame) | 0.00240545 |
| Major axis | 0.298647′ |
| Minor axis | 0.195972′ |
| Position angle | 64° |

## Also known as

- PGC: PGC 4321544
- SDSSJ: SDSSJ 121935.46+290500.8
- WISExSCOS: WISExSCOS J121935.50+290500.3

## 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. PGC 4321544 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/pgc-4321544

```bibtex
@misc{spacecatalog_pgc-4321544,
  author       = {{SpaceCatalog}},
  title        = {{PGC 4321544}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/pgc-4321544},
  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/pgc-4321544