---
title: "HIP 55110"
url: "https://spacecatalog.org/object/hip-55110"
release: "DR1"
licence: "CC-BY-SA-4.0"
citation: "SpaceCatalog. HIP 55110 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-55110"
---

# HIP 55110

HIP 55110 is a B5 blue-white [star](https://spacecatalog.org/stars) in the constellation [Chamaeleon](https://spacecatalog.org/constellation/chamaeleon), shining at apparent magnitude 11.25 (V).

## At a glance

- **WHAT IT IS:** Blue-white star
- **HOW BRIGHT (V):** 11.25 — A small telescope reaches it.
- **WHERE TO LOOK:** [Chamaeleon](https://spacecatalog.org/constellation/chamaeleon) — The patch of sky it sits in, as seen from Earth.

## Properties

| Quantity | Value |
| --- | --- |
| CLASS | B5 blue-white star |
| APPARENT MAGNITUDE (V) | 11.25 |
| CONSTELLATION | Chamaeleon |
| RIGHT ASCENSION (J2000) | 11h 17m 02.6s |
| DECLINATION (J2000) | −81° 27′ 08.9″ |

## 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 |
| --- | --- |
| Spectral type | B5 |

### 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 |
| --- | --- |
| Colour index (B−V) | −0.045 |
| Variable magnitude, brightest | 11.15 |
| Variable magnitude, faintest | 11.31 |

### 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) | −20.63 mas/yr |
| Proper motion (Dec) | 10.29 mas/yr |
| Radial velocity | 0 km/s |

### OTHER NAMES AND NUMBERS

The identifiers other catalogues file this object under, for anyone joining this data to theirs.

| Field | Value |
| --- | --- |
| Washington Double Star id | 11170-8127 |

## Also known as

- HIP: HIP 55110

## 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 55110 \[catalogue entry\]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-55110

```bibtex
@misc{spacecatalog_hip-55110,
  author       = {{SpaceCatalog}},
  title        = {{HIP 55110}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/hip-55110},
  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-55110