Uncommon star 22 EP

GL GJ 2040

RA 79.8955° · Dec 3.8739° · star

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Score breakdown

· 5 badges

22 pts · Uncommon

Uncommon 34 pts → Rare

In Orion's hunting ground +6
Red dwarf +6
Cool red M-type star +5
Star +3
Main-sequence star +2

Total score 22

12 more points to reach Rare.

Badges

Star · +3
In Orion's hunting ground · +6
Cool red M-type star · +5
Main-sequence star · +2
Red dwarf · +6

Trivia

Hard to believe

True brightness. It pours out about 1.2 million 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 M0V — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

Find it in the sky

How to spot it. At magnitude 9.6 you'll want a small backyard telescope, over in Orion.
Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
Best time of year. It stands highest in the middle of the night around December — 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) — cooler than the Sun, and the kind of star that burns steadily for tens of billions of years.
Why no green stars. No star ever looks green: a surface hot enough to peak in green also floods out plenty of red and blue, and your eye blends the mixture back to white.

Properties

absmag: -10.36
bv: 0.994
constellation: Ori
luminosity: 1213388.8505
mag: 9.64
name: GL GJ 2040
spect: M0V

Nearby objects

About GL GJ 2040

GL GJ 2040 is an uncommon star. It sits in the constellation Ori, shines at apparent magnitude 9.64 and has spectral type M0V.

Its spectrum reads M0V — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

How to see it

Look for GL GJ 2040 in the constellation Ori. At apparent magnitude 9.64, a small backyard telescope will bring it into view.

Like any astronomical target, GL GJ 2040 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 GL GJ 2040 is an uncommon star

GL GJ 2040 scores 22 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 12 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, In Orion's hunting ground, Cool red M-type star, Main-sequence star and Red dwarf — 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.