Trash star 7 EP

HIP 58786

RA 180.8541° · Dec 70.4321° · star

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Score breakdown

· 2 badges

7 pts · Trash

Trash 15 pts → Common

Never sets (northern circumpolar) +4
Star +3

Total score 7

8 more points to reach Common.

Badges

Star · +3
Never sets (northern circumpolar) · +4

Trivia

Hard to believe

True brightness. It pours out about 666.8 thousand times as much light as the Sun. It only looks ordinary because it is so far away.

What it actually is

Spectral class. Its spectrum reads R... — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.

Find it in the sky

How to spot it. At magnitude 10.3 you'll want a small backyard telescope, over in Draco.
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 March — that's when to go looking.

Its true colour

Its true colour. Measured through blue and visual filters it comes out orange (B−V 1.3) — 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 4090 K, against the Sun's 5778 K.

What's in a name

Its catalogue. The HIP number comes from Hipparcos, the ESA satellite that between 1989 and 1993 pinned down 118,000 stars precisely enough to triangulate their distances.

Properties

absmag: -9.73
bv: 1.32
constellation: Dra
luminosity: 679203.6326
mag: 10.27
name: HIP 58786
spect: R...

Nearby objects

About HIP 58786

HIP 58786 is a trash star. It sits in the constellation Dra, shines at apparent magnitude 10.27 and has spectral type R....

Its spectrum reads R... — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.

How to see it

Look for HIP 58786 in the constellation Dra. At apparent magnitude 10.27, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 58786 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 HIP 58786 is a trash star

HIP 58786 scores 7 points on Spacedle's rarity scale, which places it in the trash tier. Another 8 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Never sets (northern circumpolar) — 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.