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Theemin, painted as a golden star

A dedicated star

Theemin

golden · Eridanus · υ2 Eri

Dedicated to

Maya

by Her sister, June · August 12, 2026

“You were born on the brightest night of my life. Whenever you feel small, remember: there is a star that has carried your name since before you could read it, and it is still up there, still burning, still yours.”
AsterNym registry seal

This dedication

Dedicated to
Maya
Dedicated by
Her sister, June
Recorded
August 12, 2026
Held until
August 12, 2027

When this dedication ends, Theemin becomes available again. Want it? Put the date in your calendar.

Theemin at a glance

Constellation
Eridanus
Other name
υ2 Eri
Catalogue number
HIP 21393
Distance
≈ 214 light-years
Brightness
Magnitude 3.81 naked-eye
Star type
G8III
Colour
golden
Best seen from
The Southern Hemisphere and lower northern latitudes
Right ascension
04h 35m 33s
Declination
−30° 33′ 44″

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 Theemin?

Theemin is a yellow giant. Its surface runs about 5,500°C, near enough the Sun's own surface temperature. 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. A yellow star still in the steady part of its life would burn for about ten thousand million 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.

Theemin drifts about 5.1 arcseconds a century against the stars behind it. Slow by any human measure, and still enough that the sky your distant descendants see will not be the one in your photographs.

The light you are looking at is old

The light arriving from Theemin tonight left in about 1812, some 214 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 does the name Theemin mean?

Subsequently, its etymology was incorrectly derived from Hebrew תאומים (te'omim), meaning "twins," producing Theemin'.

Name origin from English Wikipedia. AsterNym does not invent an etymology where none is recorded, and most stars in this catalogue have none: they carry modern names, or a catalogue designation and nothing older.

Where can you see Theemin?

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 59°N. It passes directly overhead at latitude 31°S. It stands highest at midnight in November, so November and December evenings are the best time to look. At magnitude 3.81 it is a naked-eye star only under a dark sky, binoculars make it certain.

Theemin belongs to Eridanus.

What does Theemin mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Theemin, 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, Theemin stands at 29° Taurus at the J2000 epoch, and the Sun passes that degree around 20 May 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.

Frequently asked questions about Theemin

What does Theemin mean in astrology?
The classical fixed-star tradition has no documented meaning for Theemin. Projected onto the zodiac, Theemin stands at 29° Taurus, and the Sun passes that degree each year around 20 May.
Is Theemin the brightest star?
Theemin shines at magnitude 3.81 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Theemin?
Theemin is approximately 214 light-years from Earth. The light reaching us tonight began its journey around 214 years ago.
Which constellation contains Theemin?
Theemin is part of Eridanus.
Can everyone see Theemin?
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 59°N. It passes directly overhead at latitude 31°S. It stands highest at midnight in November, so November and December evenings are the best time to look. At magnitude 3.81 it is a naked-eye star only under a dark sky, binoculars make it certain.
Is dedicating Theemin an official astronomical renaming?
No. Theemin 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 Eridanus, its stars sized by brightness and coloured by spectral type
Eridanus, 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.