Preview. This is a sample dedication, shown so you can see what a dedicated star page looks like.

Mesarthim, painted as a blue-white star

A dedicated star

Mesarthim

blue-white · Aries · γ Ari

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

Mesarthim at a glance

Constellation
Aries
Other name
γ Ari
Catalogue number
HIP 8832
Distance
≈ 165 light-years
Brightness
Magnitude 3.86 naked-eye
Star type
A0 V
Colour
blue-white
Best seen from
Almost everywhere on Earth
Right ascension
01h 53m 30s
Declination
+19° 17′ 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 Mesarthim?

Mesarthim is a white main-sequence star. 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 main-sequence star, which despite the word dwarf simply means it is in the long stable middle of its life, fusing hydrogen in its core exactly as the Sun is doing now.

The light you are looking at is old

The light arriving from Mesarthim tonight left in about 1861, some 165 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.

Where can you see Mesarthim?

It sits 19° north of the celestial equator, so it clears the horizon everywhere short of latitude 71°S, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 19°N. It stands highest at midnight in October, so October and November evenings are the best time to look. At magnitude 3.86 it is a naked-eye star only under a dark sky, binoculars make it certain.

Mesarthim belongs to Aries.

What does Mesarthim mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Mesarthim, 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, Mesarthim stands at 3° Taurus at the J2000 epoch, and the Sun passes that degree around 23 April 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 Mesarthim

What does Mesarthim mean in astrology?
The classical fixed-star tradition has no documented meaning for Mesarthim. Projected onto the zodiac, Mesarthim stands at 3° Taurus, and the Sun passes that degree each year around 23 April.
Is Mesarthim the brightest star?
Mesarthim shines at magnitude 3.86 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Mesarthim?
Mesarthim is approximately 165 light-years from Earth. The light reaching us tonight began its journey around 165 years ago.
Which constellation contains Mesarthim?
Mesarthim is part of Aries.
Can everyone see Mesarthim?
It sits 19° north of the celestial equator, so it clears the horizon everywhere short of latitude 71°S, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 19°N. It stands highest at midnight in October, so October and November evenings are the best time to look. At magnitude 3.86 it is a naked-eye star only under a dark sky, binoculars make it certain.
Is dedicating Mesarthim an official astronomical renaming?
No. Mesarthim 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 Aries, its stars sized by brightness and coloured by spectral type
Aries, 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.