The AsterNym star registry
Atria
Atria: the warm orange star of Triangulum Australe
warm orange · Triangulum Australe · α TrA
Atria is a warm orange giant, far along its stellar life in the constellation Triangulum Australe, one of the stars with a proper name recognised in the IAU Catalog of Star Names. At magnitude 1.91 it is visible to the naked eye under a dark sky.
Most stars in the sky are anonymous points of light. Atria is not. Some IAU-recognised names are ancient; others were adopted by the IAU only recently. Either way, the star already has a scientific identity, and a dedication attaches a human story to it.
Real star · Personal dedication · Recorded in the AsterNym registry
See what a dedicated page looks like: preview
Atria at a glance
- Constellation
- Triangulum Australe
- Other name
- α TrA
- Catalogue number
- HIP 82273
- Distance
- ≈ 415 light-years
- Brightness
- Magnitude 1.91 naked-eye
- Star type
- K2 IIb-IIIa
- Colour
- warm orange
- Best seen from
- The far southern sky
- Right ascension
- 16h 48m 40s
- Declination
- −69° 01′ 40″
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 Atria?
Atria is an orange supergiant. Its surface runs roughly 4,000 to 5,000°C, cool enough that the light carries a visible orange. 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. An orange star still in the steady part of its life would burn for tens of thousands 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 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
Atria is about 415 light years away, so the light reaching you now set out around 1611. 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 could a Atria dedication represent?
Atria is especially meaningful for someone who:
- · Deserves something older than any gift shop
- · Marks a beginning, an anniversary or a promise
- · Is remembered every time you look up
- · Has a light you want recorded somewhere permanent
Dedication idea
“For the one I think of when I find Triangulum Australe in the sky.”
Where can you see Atria?
It is a deep-southern star: easy from Australia, New Zealand, southern Africa and South America, but it never rises for observers north of about latitude 21°N. It passes directly overhead at latitude 69°S. It stands highest at midnight in June, so June and July evenings are the best time to look. At magnitude 1.91 it is an easy naked-eye star from any reasonably dark spot.
Atria belongs to Triangulum Australe, where it is the brightest star.
What does Atria mean in astrology?
The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Atria, 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, Atria stands at 20° Sagittarius at the J2000 epoch, and the Sun passes that degree around 10 December 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.
Dedicate Atria to someone who matters
A flower fades. A card is eventually put away. A star gives your message a place in the sky.
from$29.95a year
Dedicate Atria →Real star · your message · a page to share
Your Atria dedication includes
- Your chosen dedication name
- Your personal message
- Atria's real astronomical coordinates
- A shareable dedication page
- Its location on the AsterNym Galaxy Map
- An optional printable certificate and gift presentation
Atria keeps its established astronomical name. Your dedication is a personal commemorative record within the AsterNym registry.
Frequently asked questions about Atria
- What does Atria mean in astrology?
- The classical fixed-star tradition has no documented meaning for Atria. Projected onto the zodiac, Atria stands at 20° Sagittarius, and the Sun passes that degree each year around 10 December.
- Is Atria the brightest star?
- Atria shines at magnitude 1.91 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
- How far away is Atria?
- Atria is approximately 415 light-years from Earth. The light reaching us tonight began its journey around 415 years ago.
- Which constellation contains Atria?
- Atria is the brightest star in Triangulum Australe.
- Can everyone see Atria?
- It is a deep-southern star: easy from Australia, New Zealand, southern Africa and South America, but it never rises for observers north of about latitude 21°N. It passes directly overhead at latitude 69°S. It stands highest at midnight in June, so June and July evenings are the best time to look. At magnitude 1.91 it is an easy naked-eye star from any reasonably dark spot.
- Is dedicating Atria an official astronomical renaming?
- No. Atria 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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