A dedicated star
Adhara
blue · Canis Major · ε CMa
Dedicated to
Jacob Bennett
by Emily Parker · August 14, 2026
“Jacob, may Adhara shine as brightly as the future ahead of you. Congratulations on landing your first job — this is only the beginning of an amazing journey.”
This dedication
- Dedicated to
- Jacob Bennett
- Dedicated by
- Emily Parker
- Recorded
- August 14, 2026
- Held until
- August 14, 2027
When this dedication ends, Adhara becomes available again. Want it? Put the date in your calendar.
Adhara at a glance
- Constellation
- Canis Major
- Other name
- ε CMa
- Catalogue number
- HIP 33579
- Distance
- ≈ 430 light-years
- Brightness
- Magnitude 1.50 naked-eye
- Star type
- B2 II
- Colour
- blue
- Best seen from
- The Southern Hemisphere and lower northern latitudes
- Right ascension
- 06h 58m 37s
- Declination
- −28° 58′ 20″
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 Adhara?
Adhara is a blue-white bright giant. Its surface runs somewhere between 10,000 and 30,000°C, which is what gives it a blue-white cast. 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 blue-white star still in the steady part of its life would burn for tens of millions of 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 sits between a giant and a supergiant: already expanded well beyond its original size, already past the steady middle of its life, and bright enough to be picked out from a very long way off.
The light you are looking at is old
Adhara is about 430 light years away, so the light reaching you now set out around 1596. 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 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 Adhara mean?
ε Canis Majoris bore the traditional name Adhara (sometimes spelled Adara, Adard, Udara or Udra), derived from the Arabic word عذارى 'aðāra', "virgins".
In the 17th-century catalogue of stars in the Calendarium of Al Achsasi al Mouakket, this star was designated Aoul al Adzari (أول العذاري awwal al-adhara), which was translated into Latin as Prima Virginum, meaning First of the Virgins.
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 Adhara?
It is easy to see from much of the Southern Hemisphere. It can also appear from lower northern latitudes, but it never rises for observers north of about latitude 61°N. It passes directly overhead at latitude 29°S. It stands highest at midnight in January, so January and February evenings are the best time to look. At magnitude 1.50 it is an easy naked-eye star from any reasonably dark spot.
Adhara belongs to Canis Major.
What does Adhara mean in astrology?
The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Adhara, 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, Adhara stands at 20° Cancer at the J2000 epoch, and the Sun passes that degree around 10 July 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 Adhara
- What does Adhara mean in astrology?
- The classical fixed-star tradition has no documented meaning for Adhara. Projected onto the zodiac, Adhara stands at 20° Cancer, and the Sun passes that degree each year around 10 July.
- Is Adhara the brightest star?
- Adhara shines at magnitude 1.50 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
- How far away is Adhara?
- Adhara is approximately 430 light-years from Earth. The light reaching us tonight began its journey around 430 years ago.
- Which constellation contains Adhara?
- Adhara is part of Canis Major.
- Can everyone see Adhara?
- It is easy to see from much of the Southern Hemisphere. It can also appear from lower northern latitudes, but it never rises for observers north of about latitude 61°N. It passes directly overhead at latitude 29°S. It stands highest at midnight in January, so January and February evenings are the best time to look. At magnitude 1.50 it is an easy naked-eye star from any reasonably dark spot.
- Is dedicating Adhara an official astronomical renaming?
- No. Adhara 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.
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