Triminus, painted as a yellow-white star

The AsterNym star registry

Triminus

Triminus: the yellow-white star of Triangulum

yellow-white · Triangulum · 6 Tri

Triminus is a yellow-white star, a near cousin of our own Sun's colour in the constellation Triangulum, one of the stars with a proper name recognised in the IAU Catalog of Star Names. At magnitude 4.95 it is visible to the naked eye under a dark sky.

Most stars in the sky are anonymous points of light. Triminus 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

Triminus at a glance

Constellation
Triangulum
Other name
6 Tri
Catalogue number
HIP 10280
Distance
≈ 291 light-years
Brightness
Magnitude 4.95 naked-eye
Star type
F5V comp SB
Colour
yellow-white
Best seen from
The Northern Hemisphere and lower southern latitudes
Right ascension
02h 12m 22s
Declination
+30° 18′ 11″

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 Triminus?

Triminus is a yellow-white main-sequence star. Its surface runs about 6,000 to 7,500°C, a shade hotter than the Sun. 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.

A little brighter and a little shorter-lived than the Sun, and near the edge of the range where a planet could plausibly hold liquid water for long enough to matter.

A star of this class gets two to four thousand million years.

It is a main-sequence star, which despite the word dwarf simply means it is in the long stable middle of its life, fusing hydrogen in its core exactly as the Sun is doing now.

Triminus drifts about 8.9 arcseconds a century against the stars behind it. Slow by any human measure, and still enough that the sky your distant descendants see will not be the one in your photographs.

The light you are looking at is old

The light arriving from Triminus tonight left in about 1735, some 291 years ago. Everything that has happened since, every person you have heard of from the last few centuries, happened while it was in transit.

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 Triminus mean?

The Latin name "Triminus" is composed of the IAU abbreviation of "Tri" for Triangulum and "Minus" for Triangulum Minus, or the lesser triangle made by Johannes Hevelius.

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.

What could a Triminus dedication represent?

Triminus 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 in the sky.”

Dedicate Triminus →

Where can you see Triminus?

It is easy to see from most of the Northern Hemisphere. It can also appear from lower southern latitudes, but it never rises for observers south of about latitude 60°S. It passes directly overhead at latitude 30°N. It stands highest at midnight in October, so October and November evenings are the best time to look. At magnitude 4.95 it is a naked-eye star only under a dark sky, binoculars make it certain.

Triminus belongs to Triangulum.

What does Triminus mean in astrology?

The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Triminus, 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, Triminus stands at 11° Taurus at the J2000 epoch, and the Sun passes that degree around 1 May 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 Triminus 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 Triminus →

Real star · your message · a page to share

Your Triminus dedication includes

  • Your chosen dedication name
  • Your personal message
  • Triminus's real astronomical coordinates
  • A shareable dedication page
  • Its location on the AsterNym Galaxy Map
  • An optional printable certificate and gift presentation

Triminus keeps its established astronomical name. Your dedication is a personal commemorative record within the AsterNym registry.

Frequently asked questions about Triminus

What does Triminus mean in astrology?
The classical fixed-star tradition has no documented meaning for Triminus. Projected onto the zodiac, Triminus stands at 11° Taurus, and the Sun passes that degree each year around 1 May.
Is Triminus the brightest star?
Triminus shines at magnitude 4.95 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
How far away is Triminus?
Triminus is approximately 291 light-years from Earth. The light reaching us tonight began its journey around 291 years ago.
Which constellation contains Triminus?
Triminus is part of Triangulum.
Can everyone see Triminus?
It is easy to see from most of the Northern Hemisphere. It can also appear from lower southern latitudes, but it never rises for observers south of about latitude 60°S. It passes directly overhead at latitude 30°N. It stands highest at midnight in October, so October and November evenings are the best time to look. At magnitude 4.95 it is a naked-eye star only under a dark sky, binoculars make it certain.
Is dedicating Triminus an official astronomical renaming?
No. Triminus 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 Triangulum, its stars sized by brightness and coloured by spectral type
Triangulum, 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.