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

A dedicated star

Diadem

yellow-white · Coma Berenices · α Com

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.

This dedication

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

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

Diadem at a glance

Constellation
Coma Berenices
Other name
α Com
Catalogue number
HIP 64241
Distance
58 light-years
Brightness
Magnitude 4.85 naked-eye
Star type
F5V
Colour
yellow-white
Best seen from
Almost everywhere on Earth
Right ascension
13h 09m 59s
Declination
+17° 31′ 46″

Coordinates are J2000 epoch, checkable against any astronomical source or planetarium app.

Where can you see Diadem?

It sits near the celestial equator, so nearly every inhabited latitude gets a view of it at some point in the year.

Diadem belongs to Coma Berenices.

Frequently asked questions about Diadem

Is Diadem the brightest star?
Diadem shines at magnitude 4.85 — visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Diadem?
Diadem is approximately 58 light-years from Earth. The light reaching us tonight began its journey around 58 years ago.
Which constellation contains Diadem?
Diadem is part of Coma Berenices.
Can everyone see Diadem?
It sits near the celestial equator, so nearly every inhabited latitude gets a view of it at some point in the year.
Is dedicating Diadem an official astronomical renaming?
No. Diadem 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

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.