TOI-3523 A is 2,105 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 6,450 K star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-3523 A b goes round its star every 2.30 days, 38 times as often as Mercury goes round the Sun.
TOI-3523 A is one of 3 stars in its system. The position of the other 2 is not catalogued, so only TOI-3523 A and its planets are drawn.
| Surface temperature | 6,450 K |
| Mass | 1.131 solar masses |
| Radius | 1.448 solar radii |
| Luminosity | 3.27 times the Sun |
| Apparent magnitude | 12.56 |
| Age | about 4.3 billion years |
| Distance from the Sun | 2104.7 light-years (645.3 parsecs) |
| Position (J2000) | RA 304.2835°, Dec 42.9065° |
| Constellation | Cygnus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-3523 A b | 2.30 days | 0.0356 AU | 15.973 R⊕ | 435.42 M⊕ | Transit, 2025 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.