The AsterNym star registry
Asellus Australis
Asellus Australis: the warm orange star of Cancer
warm orange · Cancer · δ Cnc
Asellus Australis is a warm orange giant, far along its stellar life in the constellation Cancer, one of the stars with a proper name recognised in the IAU Catalog of Star Names. At magnitude 3.94 it is visible to the naked eye under a dark sky.
Most stars in the sky are anonymous points of light. Asellus Australis 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
Asellus Australis at a glance
- Constellation
- Cancer
- Other name
- δ Cnc
- Catalogue number
- HIP 42911
- Distance
- ≈ 131 light-years
- Brightness
- Magnitude 3.94 naked-eye
- Star type
- K0 III
- Colour
- warm orange
- Best seen from
- Almost everywhere on Earth
- Right ascension
- 08h 44m 40s
- Declination
- +18° 09′ 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 Asellus Australis?
Asellus Australis is an orange giant. 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 giant, which is what a star becomes when it exhausts the hydrogen in its core. It has swollen outward and cooled at the surface, and it is now brighter than it ever was as a young star. The Sun will do this too, in about five thousand million years.
The light you are looking at is old
The light arriving from Asellus Australis tonight left in about 1895, some 131 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 Asellus Australis mean?
It bore the traditional name Asellus Australis which is Latin for "southern donkey colt".
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 Asellus Australis dedication represent?
Asellus Australis 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 Cancer in the sky.”
Where can you see Asellus Australis?
It sits 18° north of the celestial equator, so it clears the horizon everywhere short of latitude 72°S, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 18°N. It stands highest at midnight in February, so February and March evenings are the best time to look. At magnitude 3.94 it is a naked-eye star only under a dark sky, binoculars make it certain.
Asellus Australis belongs to Cancer.
What does Asellus Australis mean in astrology?
The classical fixed-star tradition: Ptolemy, the medieval Behenian lists, Robson’s 1923 compilation. Is silent on Asellus Australis, 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, Asellus Australis stands at 8° Leo at the J2000 epoch, and the Sun passes that degree around 29 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.
Dedicate Asellus Australis 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 Asellus Australis →Real star · your message · a page to share
Your Asellus Australis dedication includes
- Your chosen dedication name
- Your personal message
- Asellus Australis's real astronomical coordinates
- A shareable dedication page
- Its location on the AsterNym Galaxy Map
- An optional printable certificate and gift presentation
Asellus Australis keeps its established astronomical name. Your dedication is a personal commemorative record within the AsterNym registry.
Frequently asked questions about Asellus Australis
- What does Asellus Australis mean in astrology?
- The classical fixed-star tradition has no documented meaning for Asellus Australis. Projected onto the zodiac, Asellus Australis stands at 8° Leo, and the Sun passes that degree each year around 29 July.
- Is Asellus Australis the brightest star?
- Asellus Australis shines at magnitude 3.94 · visible to the naked eye on a clear night, one of the few thousand stars with an officially recognised name.
- How far away is Asellus Australis?
- Asellus Australis is approximately 131 light-years from Earth. The light reaching us tonight began its journey around 131 years ago.
- Which constellation contains Asellus Australis?
- Asellus Australis is part of Cancer.
- Can everyone see Asellus Australis?
- It sits 18° north of the celestial equator, so it clears the horizon everywhere short of latitude 72°S, in practice, every inhabited latitude on Earth. It passes directly overhead at latitude 18°N. It stands highest at midnight in February, so February and March evenings are the best time to look. At magnitude 3.94 it is a naked-eye star only under a dark sky, binoculars make it certain.
- Is dedicating Asellus Australis an official astronomical renaming?
- No. Asellus Australis 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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