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Rare star 47 EP

HR 3604

RA 135.1906° · Dec -60.9638° · star

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Score breakdown

· 6 badges
47 pts · Rare
Rare 50 pts → Epic
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Star +3
Total score 47

3 more points to reach Epic.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • Sun-like G-type star · +8
  • Bright giant · +12
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads G8II — 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 5.8 you can see it with your own eyes from a dark site, over in Carina.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around February — 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. ≈ 23 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.219
bv
1.211
constellation
Car
dist ly
1309.8634
luminosity
672.3571
mag
5.8
name
HR 3604
spect
G8II

About HR 3604

HR 3604 is a rare star. It lies about 1,309.9 light-years from Earth, sits in the constellation Car, shines at apparent magnitude 5.8 and has spectral type G8II.

Its spectrum reads G8II — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HR 3604 in the constellation Car. At apparent magnitude 5.8, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 3604 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 3604 is a rare star

HR 3604 scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Distant (over 1,000 light-years), Naked-eye visible, Sun-like G-type star, Bright giant and Intrinsically luminous (Mv < −2) — 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.