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Rare star 48 EP

25 Gem

RA 100.3371° · Dec 28.1966° · star

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Score breakdown

· 6 badges
48 pts · Rare
Rare 50 pts → Epic
  • Supergiant +18
  • Intrinsically luminous (Mv < −2) +10
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Star +3
  • On the zodiac +3
Total score 48

2 more points to reach Epic.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Supergiant · +18
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5Ib — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a supergiant, hundreds of times wider than the Sun.

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 6.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Gemini.
  • 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 December — 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. ≈ 36.3 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.557
bv
1.09
constellation
Gem
dist ly
2064.2785
luminosity
917.9098
mag
6.45
name
25 Gem
spect
G5Ib

About 25 Gem

25 Gem is a rare star. It lies about 2,064.3 light-years from Earth, sits in the constellation Gem, shines at apparent magnitude 6.45 and has spectral type G5Ib.

Its spectrum reads G5Ib — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 25 Gem in the constellation Gem. At apparent magnitude 6.45, it is an easy target for binoculars.

Like any astronomical target, 25 Gem 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 25 Gem is a rare star

25 Gem scores 48 points on Spacedle's rarity scale, which places it in the rare tier. Another 2 points would lift it into a rarer tier.

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