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Rare star 40 EP

HD 174170

RA 282.5500° · Dec -22.8482° · star

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Score breakdown

· 6 badges
40 pts · Rare
Rare 50 pts → Epic
  • Bright giant +12
  • Toward the galactic centre +8
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Star +3
  • On the zodiac +3
Total score 40

10 more points to reach Epic.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5II/III — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a bright giant, well on its way to the largest stars there are.

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 7.2 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Sagittarius.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around July — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 18.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.302
bv
1.216
constellation
Sgr
dist ly
1032.1393
luminosity
115.0271
mag
7.2
name
HD 174170
spect
G5II/III

About HD 174170

HD 174170 is a rare star. It lies about 1,032.1 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 7.2 and has spectral type G5II/III.

Its spectrum reads G5II/III — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 174170 in the constellation Sgr. At apparent magnitude 7.2, it is an easy target for binoculars.

Like any astronomical target, HD 174170 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 174170 is a rare star

HD 174170 scores 40 points on Spacedle's rarity scale, which places it in the rare tier. Another 10 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Distant (over 1,000 light-years), Toward the galactic centre, On the zodiac, Sun-like G-type star and Bright giant — 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.