Solitaire, painted as a warm orange star

The AsterNym star registry

Solitaire

Solitaire: the warm orange star of Hydra

warm orange · Hydra · E Hya

Solitaire is a warm orange giant, far along its stellar life in the constellation Hydra, one of the stars with a proper name recognised in the IAU Catalog of Star Names. At magnitude 4.41 it is visible to the naked eye under a dark sky.

Most stars in the sky are anonymous points of light. Solitaire is not. Some IAU-recognised names are ancient; others were adopted by the IAU only recently. Either way, the star already has a scientific identity, and a dedication attaches a human story to it.

Real star · Personal dedication · Recorded in the AsterNym registry

See what a dedicated page looks like: preview

Solitaire at a glance

Constellation
Hydra
Other name
E Hya
Catalogue number
HIP 72571
Distance
≈ 331 light-years
Brightness
Magnitude 4.41 naked-eye
Star type
K3III
Colour
warm orange
Best seen from
The Southern Hemisphere and lower northern latitudes
Right ascension
14h 50m 17s
Declination
−27° 57′ 37″

J2000 catalogue coordinates that can be independently cross-checked against astronomical databases. A planetarium app showing coordinates of date will differ slightly, because proper motion and precession move a star’s apparent position over time.

What kind of star is Solitaire?

Solitaire is an orange giant. Its surface runs roughly 4,000 to 5,000°C, cool enough that the light carries a visible orange. Colour in a star is a temperature reading rather than a decoration: the hot ones are blue and the cool ones red, the opposite way round to a kitchen tap.

Its colour is not the whole story. An orange star still in the steady part of its life would burn for tens of thousands of millions of years. This one is past that stage, and it is cool at the surface because it has swollen outward, not because it was born this way.

It is a giant, which is what a star becomes when it exhausts the hydrogen in its core. It has swollen outward and cooled at the surface, and it is now brighter than it ever was as a young star. The Sun will do this too, in about five thousand million years.

Solitaire moves noticeably against the background sky, about 25 arcseconds a century. The constellation it belongs to will not have quite this shape in ten thousand years.

The light you are looking at is old

The light arriving from Solitaire tonight left in about 1695, some 331 years ago. Everything that has happened since, every person you have heard of from the last few centuries, happened while it was in transit.

That delay is the part people find hardest and like most. A star is the one thing you can give someone that was already old before either of you was born and will outlast anything else you could have chosen.

It is comfortably visible without equipment on a decent night.

What could a Solitaire dedication represent?

Solitaire is especially meaningful for someone who:

  • · Deserves something older than any gift shop
  • · Marks a beginning, an anniversary or a promise
  • · Is remembered every time you look up
  • · Has a light you want recorded somewhere permanent

Dedication idea

“For the one I think of when I find Hydra in the sky.”

Dedicate Solitaire →

Where can you see Solitaire?

It is easy to see from much of the Southern Hemisphere. It can also appear from lower northern latitudes, but it never rises for observers north of about latitude 62°N. It passes directly overhead at latitude 28°S. It stands highest at midnight in May, so May and June evenings are the best time to look. At magnitude 4.41 it is a naked-eye star only under a dark sky, binoculars make it certain.

Solitaire belongs to Hydra.

What does Solitaire mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Solitaire, and we don’t invent lore where none exists. What astrology can still read is the star’s real position, below.

Projected onto the zodiac the way fixed-star astrology reads any star, Solitaire stands at 18° Scorpio at the J2000 epoch, and the Sun passes that degree around 7 November in the years around 2000. Fixed-star longitude shifts slowly against the tropical zodiac because of precession, about one degree every seventy-two years, so a natal conjunction must be calculated for the birth year rather than read off this J2000 value or a calendar date.

Traditional interpretations, not facts or predictions. The position and dates are computed.

Dedicate Solitaire to someone who matters

A flower fades. A card is eventually put away. A star gives your message a place in the sky.

from$29.95a year

Dedicate Solitaire →

Real star · your message · a page to share

Your Solitaire dedication includes

  • Your chosen dedication name
  • Your personal message
  • Solitaire's real astronomical coordinates
  • A shareable dedication page
  • Its location on the AsterNym Galaxy Map
  • An optional printable certificate and gift presentation

Solitaire keeps its established astronomical name. Your dedication is a personal commemorative record within the AsterNym registry.

Frequently asked questions about Solitaire

What does Solitaire mean in astrology?
The classical fixed-star tradition has no documented meaning for Solitaire. Projected onto the zodiac, Solitaire stands at 18° Scorpio, and the Sun passes that degree each year around 7 November.
Is Solitaire the brightest star?
Solitaire shines at magnitude 4.41 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Solitaire?
Solitaire is approximately 331 light-years from Earth. The light reaching us tonight began its journey around 331 years ago.
Which constellation contains Solitaire?
Solitaire is part of Hydra.
Can everyone see Solitaire?
It is easy to see from much of the Southern Hemisphere. It can also appear from lower northern latitudes, but it never rises for observers north of about latitude 62°N. It passes directly overhead at latitude 28°S. It stands highest at midnight in May, so May and June evenings are the best time to look. At magnitude 4.41 it is a naked-eye star only under a dark sky, binoculars make it certain.
Is dedicating Solitaire an official astronomical renaming?
No. Solitaire keeps its internationally recognised astronomical name. An AsterNym dedication records your personal name and message in the AsterNym registry without changing the star's scientific identity.

Explore nearby stars

The constellation Hydra, its stars sized by brightness and coloured by spectral type
Hydra, drawn from catalogued positions: brighter stars are larger, and the colours follow spectral type. North is up and east is left, the sky-chart convention, so it is mirrored against a map of the ground. The joining lines are one drawing convention among several; the IAU fixes the boundaries, not the figure.
AsterNym dedications are personal commemorative records: they are not recognized by the International Astronomical Union, do not change scientific catalogue names, and do not confer ownership of a star.