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Sadalsuud, painted as a yellow star

A dedicated star

Sadalsuud

yellow · Aquarius · β Aqr

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

Sadalsuud at a glance

Constellation
Aquarius
Other name
β Aqr
Catalogue number
HIP 106278
Distance
≈ 610 light-years
Brightness
Magnitude 2.87 naked-eye
Star type
G0 Ib
Colour
yellow
Best seen from
Almost everywhere on Earth
Right ascension
21h 31m 33s
Declination
−05° 34′ 16″

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 Sadalsuud?

Sadalsuud is a yellow supergiant. 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 supergiant, which means it has left the stable part of its life and swollen enormously. Put it where the Sun is and its surface would swallow the inner planets. Stars this size do not fade quietly; this one will end as a supernova, and on a human timescale that could be tonight or in a million years.

The light you are looking at is old

Sadalsuud is about 610 light years away, so the light reaching you now set out around 1416. You are not looking at the star as it is. You are looking at the star as it was, and there is no way to see it any other way.

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 Sadalsuud mean?

In the catalogue of stars in the Calendarium of Al Achsasi Al Mouakket, this star was designated Nir Saad al Saaoud, which was translated into Latin as Lucida Fortunæ Fortunarum rather identic with R.

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 Sadalsuud?

It sits 6° south of the celestial equator, so it clears the horizon everywhere short of latitude 84°N, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 6°S. It stands highest at midnight in August, so August and September evenings are the best time to look. At magnitude 2.87 it is an easy naked-eye star from any reasonably dark spot.

Sadalsuud belongs to Aquarius, where it is the brightest star.

What does Sadalsuud mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Sadalsuud, 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, Sadalsuud stands at 23° Aquarius at the J2000 epoch, and the Sun passes that degree around 11 February 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 Sadalsuud

What does Sadalsuud mean in astrology?
The classical fixed-star tradition has no documented meaning for Sadalsuud. Projected onto the zodiac, Sadalsuud stands at 23° Aquarius, and the Sun passes that degree each year around 11 February.
Is Sadalsuud the brightest star?
Sadalsuud shines at magnitude 2.87 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Sadalsuud?
Sadalsuud is approximately 610 light-years from Earth. The light reaching us tonight began its journey around 610 years ago.
Which constellation contains Sadalsuud?
Sadalsuud is the brightest star in Aquarius.
Can everyone see Sadalsuud?
It sits 6° south of the celestial equator, so it clears the horizon everywhere short of latitude 84°N, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 6°S. It stands highest at midnight in August, so August and September evenings are the best time to look. At magnitude 2.87 it is an easy naked-eye star from any reasonably dark spot.
Is dedicating Sadalsuud an official astronomical renaming?
No. Sadalsuud 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 Aquarius, its stars sized by brightness and coloured by spectral type
Aquarius, 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.