About HR 9094
HR 9094 is an uncommon star. It sits in the constellation Cas, shines at apparent magnitude 5.87 and has spectral type G8III.
Its spectrum reads G8III — a G-type star: the very same spectral class as our own Sun.
Uncommon star 29 EP
HR 9094
RA 0.6504° · Dec 66.0990° · star
Score breakdown
· 5 badgesUncommon 34 pts → Rare
- Naked-eye visible +8
- Sun-like G-type star +8
- Giant star +6
- Never sets (northern circumpolar) +4
- Star +3
Total score 29
5 more points to reach Rare.
Badges
- Star · +3
- Naked-eye visible · +8
- Never sets (northern circumpolar) · +4
- Sun-like G-type star · +8
- Giant star · +6
Trivia
What it actually is
- Spectral class. Its spectrum reads G8III — a G-type star: the very same spectral class as our own Sun.
- Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.
Find it in the sky
- How to spot it. At magnitude 5.9 you can see it with your own eyes from a dark site, over in Cassiopeia.
- Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
- Best time of year. It stands highest in the middle of the night around September — that's when to go looking.
Its true colour
- Its true colour. Measured through blue and visual filters it comes out orange (B−V 1.1) — cooler than the Sun, and the kind of star that burns steadily for tens of billions of years.
By the numbers
- Surface temperature. Its colour puts the surface at roughly 4570 K, against the Sun's 5778 K.
What's in a name
- Its catalogue. The HR number is from the Bright Star Catalogue — roughly 9,100 stars, essentially everything the unaided eye can see.
Properties
- absmag
- -14.13
- bv
- 1.073
- constellation
- Cas
- luminosity
- 39084089.5792
- mag
- 5.87
- name
- HR 9094
- spect
- G8III
How to see it
Look for HR 9094 in the constellation Cas. At apparent magnitude 5.87, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 9094 is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
Why HR 9094 is an uncommon star
HR 9094 scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, Naked-eye visible, Never sets (northern circumpolar), Sun-like G-type star and Giant star — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.