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Alderamin, painted as a white star

A dedicated star

Alderamin

white · Cepheus · α Cep

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

Alderamin at a glance

Constellation
Cepheus
Other name
α Cep
Catalogue number
HIP 105199
Distance
≈ 49 light-years
Brightness
Magnitude 2.51 naked-eye
Star type
A7 IV-V
Colour
white
Best seen from
The far northern sky
Right ascension
21h 18m 35s
Declination
+62° 35′ 08″

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 Alderamin?

Alderamin 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 Alderamin left in 1977, 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 comfortably visible without equipment on a decent night.

What does the name Alderamin mean?

It bore the traditional name Alderamin, a contraction of the Arabic phrase الذراع اليمين al-dhirā‘ al-yamīn, meaning "the right arm".

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 Alderamin?

It is a deep-northern star: easy from Europe, North America and northern Asia, but it never rises for observers south of about latitude 27°S. It passes directly overhead at latitude 63°N. It stands highest at midnight in August, so August and September evenings are the best time to look. At magnitude 2.51 it is an easy naked-eye star from any reasonably dark spot.

Alderamin belongs to Cepheus, where it is the brightest star.

What does Alderamin mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Alderamin, 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, Alderamin stands at 12° Aries at the J2000 epoch, and the Sun passes that degree around 2 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 Alderamin

What does Alderamin mean in astrology?
The classical fixed-star tradition has no documented meaning for Alderamin. Projected onto the zodiac, Alderamin stands at 12° Aries, and the Sun passes that degree each year around 2 April.
Is Alderamin the brightest star?
Alderamin shines at magnitude 2.51 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Alderamin?
Alderamin is approximately 49 light-years from Earth. The light reaching us tonight began its journey around 49 years ago.
Which constellation contains Alderamin?
Alderamin is the brightest star in Cepheus.
Can everyone see Alderamin?
It is a deep-northern star: easy from Europe, North America and northern Asia, but it never rises for observers south of about latitude 27°S. It passes directly overhead at latitude 63°N. It stands highest at midnight in August, so August and September evenings are the best time to look. At magnitude 2.51 it is an easy naked-eye star from any reasonably dark spot.
Is dedicating Alderamin an official astronomical renaming?
No. Alderamin 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 Cepheus, its stars sized by brightness and coloured by spectral type
Cepheus, 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.