About GL Gl 409
GL Gl 409 is a trash star. It sits in the constellation Crt and shines at apparent magnitude 11.88.
Its colour puts the surface at roughly 5890 K, against the Sun's 5778 K.
Trash star 3 EP
GL Gl 409
RA 165.4881° · Dec -17.9565° · star
Score breakdown
· 1 badgeTrash 15 pts → Common
- Star +3
Total score 3
12 more points to reach Common.
Badges
- Star · +3
Trivia
Hard to believe
- True brightness. It pours out about 151.4 thousand times as much light as the Sun. It only looks ordinary because it is so far away.
Find it in the sky
- How to spot it. At magnitude 11.9 you'll want a small backyard telescope, over in Crater.
- 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 March — that's when to go looking.
Its true colour
- Its true colour. Measured through blue and visual filters it comes out yellow (B−V 0.6) — almost exactly the Sun's own shade — a stellar twin in colour, if not in size.
- 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.
By the numbers
- Surface temperature. Its colour puts the surface at roughly 5890 K, against the Sun's 5778 K.
What's in a name
- Its catalogue. A Gliese number marks it as part of the census of the Sun's own neighbourhood — the catalogue of stars near enough to be our neighbours.
Properties
- absmag
- -8.12
- bv
- 0.62
- constellation
- Crt
- luminosity
- 154170.0453
- mag
- 11.88
- name
- GL Gl 409
How to see it
Look for GL Gl 409 in the constellation Crt. At apparent magnitude 11.88, a small backyard telescope will bring it into view.
Like any astronomical target, GL Gl 409 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 Gl 409 is a trash star
GL Gl 409 scores 3 points on Spacedle's rarity scale, which places it in the trash tier. Another 12 points would lift it into a rarer tier.
That score comes from 1 science badge — Star — 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.