---
title: "HIP 31505"
url: "https://spacecatalog.org/object/hip-31505"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. HIP 31505 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-31505"
---

# HIP 31505

HIP 31505 is a [star](https://spacecatalog.org/stars) in the constellation [Puppis](https://spacecatalog.org/constellation/puppis), 1930 ly from Earth, shining at apparent magnitude 9.74 (V).

## At a glance

- **WHAT IT IS:** Star
- **HOW FAR:** 1930 ly — The light arriving now left it that long ago.
- **HOW BRIGHT (V):** 9.74 — A small telescope reaches it.
- **WHERE TO LOOK:** [Puppis](https://spacecatalog.org/constellation/puppis) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| MASS | 3.30 M☉ — Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) |
| DISTANCE FROM EARTH | 1930 ly — by parallax |
| APPARENT MAGNITUDE (V) | 9.74 |
| ABSOLUTE MAGNITUDE (V) | 0.88 |
| CONSTELLATION | Puppis |
| RIGHT ASCENSION (J2000) | 06h 35m 52.3s |
| DECLINATION (J2000) | −48° 16′ 56.3″ |

## 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 |
| --- | --- |
| Surface temperature | 4812 K |
| Luminosity (visual) | 38.7614 L☉ |
| Luminosity (bolometric) | 96.7396 L☉ |
| Radius | 13.301 R☉ |
| Mass | 3.302 M☉ |
| Surface gravity (log g) | 2.401 |
| Age | 2.93×10⁸ years |

### 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 |
| --- | --- |
| Proper motion (RA) | 8.13 mas/yr |
| Proper motion (Dec) | −14.96 mas/yr |
| Radial velocity | 0 km/s |

### WHERE THESE FIGURES CAME FROM

Which catalogue, paper or model each of the fields above was read from, where the source named one.

| Field | Value |
| --- | --- |
| Stellar parameters from | Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) |

## Also known as

- HIP: HIP 31505

## Source

[HYG Database v4.1](https://github.com/astronexus/HYG-Database) — CC-BY-SA-4.0

The producer asks: HYG Database v4.1, Astronexus (github.com/astronexus/HYG-Database). Fields derived from it stay under CC BY-SA 4.0.

How this was made: https://spacecatalog.org/methods#source-hyg

## Cite this page

SpaceCatalog. HIP 31505 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-31505

```bibtex
@misc{spacecatalog_hip-31505,
  author       = {{SpaceCatalog}},
  title        = {{HIP 31505}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/hip-31505},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from HYG Database v4.1.}
}
```

HYG Database v4.1 — CC-BY-SA-4.0

Acknowledgement the producer asks for: HYG Database v4.1, Astronexus (github.com/astronexus/HYG-Database). 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/hip-31505