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Alhena, painted as a white star

A dedicated star

Alhena

white · Gemini · γ Gem

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, Alhena becomes available again. Want it? Put the date in your calendar.

Alhena at a glance

Constellation
Gemini
Other name
γ Gem
Catalogue number
HIP 31681
Distance
≈ 105 light-years
Brightness
Magnitude 1.93 naked-eye
Star type
A1 IV
Colour
white
Best seen from
Almost everywhere on Earth
Right ascension
06h 37m 42s
Declination
+16° 23′ 57″

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 Alhena?

Alhena is a white subgiant. Its surface runs around 7,500 to 10,000°C, hot enough to look white or blue-white to the eye. 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.

These are the classic bright white stars. Sirius and Vega are both this kind, and they are the reason people describe stars as white when most of the galaxy's stars are actually red and too faint to see.

A star of this class gets roughly a thousand million years, a tenth of what the Sun gets.

It is a subgiant, caught in the short crossing between an ordinary life and a giant one. Its core has run out of hydrogen but its outer layers have not finished expanding, and astronomically this stage passes quickly.

The light you are looking at is old

The light you can see from Alhena left in 1921, which puts it roughly a lifetime ago. Nobody has invented anything since then that the light knows about; it has simply been travelling.

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 also one of the brighter stars in the sky, which is why it carries a proper name at all rather than a catalogue number.

What does the name Alhena mean?

The traditional name Alhena is derived from the Arabic الهنعة Al Han'ah, 'the brand' (on the neck of the camel), whilst the alternate name Almeisan is from the Arabic المیسان Al Maisan, 'the shining one.

In the catalogue of stars in the Calendarium of Al Achsasi Al Mouakket, this star was designated Nir al Henat, which was translated into Latin as Prima του al Henat, meaning 'the brightest of Al Henat'.

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 Alhena?

It sits 16° north of the celestial equator, so it clears the horizon everywhere short of latitude 74°S, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 16°N. It stands highest at midnight in December, so December and January evenings are the best time to look. At magnitude 1.93 it is an easy naked-eye star from any reasonably dark spot.

Alhena belongs to Gemini.

What does Alhena mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Alhena, 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, Alhena stands at 9° Cancer at the J2000 epoch, and the Sun passes that degree around 29 June 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 Alhena

What does Alhena mean in astrology?
The classical fixed-star tradition has no documented meaning for Alhena. Projected onto the zodiac, Alhena stands at 9° Cancer, and the Sun passes that degree each year around 29 June.
Is Alhena the brightest star?
Alhena shines at magnitude 1.93 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Alhena?
Alhena is approximately 105 light-years from Earth. The light reaching us tonight began its journey around 105 years ago.
Which constellation contains Alhena?
Alhena is part of Gemini.
Can everyone see Alhena?
It sits 16° north of the celestial equator, so it clears the horizon everywhere short of latitude 74°S, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 16°N. It stands highest at midnight in December, so December and January evenings are the best time to look. At magnitude 1.93 it is an easy naked-eye star from any reasonably dark spot.
Is dedicating Alhena an official astronomical renaming?
No. Alhena 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 Gemini, its stars sized by brightness and coloured by spectral type
Gemini, 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.