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Epic exoplanet 65 EP

HD 10697 b

RA 26.2324° · Dec 20.0827° · exoplanet

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Score breakdown

· 5 badges
65 pts · Epic
Epic 78 pts → Anomaly
  • In the habitable zone +30
  • Found before the year 2000 +18
  • Orbits a Sun-like star +8
  • Confirmed exoplanet +5
  • Gas giant +4
Total score 65

13 more points to reach Anomaly.

Badges

  • Confirmed exoplanet · +5
  • In the habitable zone · +30
  • Gas giant · +4
  • Orbits a Sun-like star · +8
  • Found before the year 2000 · +18

Trivia

What makes it special

  • Goldilocks zone. Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

What it actually is

  • What it is made of. Its density says rock, though lighter than Earth's mix: probably less iron, or a thick shell of water and ice over the top.
  • What the zone means. The habitable zone is only about temperature: it is the band where liquid water could survive on a surface. It is a promising address, not evidence of anything living.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 6.3 it is just past naked-eye reach — ordinary binoculars will pull it in.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around October — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

density gcc
4.78
diameter km
163279.36
discovery facility
W. M. Keck Observatory
discovery method
Radial Velocity
discovery year
1999
dist ly
108.0245
eccentricity
0.104
eq temp k
259.25
habitable zone
yes
host star teff
5641
inclination
86.116
insolation
0.7124
mag
6.2826
mass earth
1825.2885
name
HD 10697 b
orbital period days
1075.3799
radius earth
12.8
semi major au
2.051
spect
G3 V
sys num planets
1
sys num stars
1

About HD 10697 b

HD 10697 b is an epic exoplanet. It lies about 108 light-years from Earth, shines at apparent magnitude 6.28, has spectral type G3 V and has an equilibrium temperature near 259 K.

Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.

How to see it

At apparent magnitude 6.28, it is an easy target for binoculars.

Like any astronomical target, HD 10697 b 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 HD 10697 b is an epic exoplanet

HD 10697 b scores 65 points on Spacedle's rarity scale, which places it in the epic tier. Another 13 points would lift it into a rarer tier.

That score comes from 5 science badges — Confirmed exoplanet, In the habitable zone, Gas giant, Orbits a Sun-like star and Found before the year 2000 — 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.