| Observation data Epoch RA2000 Equinox RA2000 | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 10h 28m 35.025s[1] |
| Declination | +65° 51′ 16.38″[1] |
| Apparent magnitude (V) | 11.875[2] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | K6 V[2] |
| Astrometry | |
| Radial velocity (Rv) | −16.70±0.40[1] km/s |
| Proper motion (μ) | RA: −177.340mas/yr[1] Dec.: −81.693mas/yr[1] |
| Parallax (π) | 13.6226±0.0147 mas[1] |
| Distance | 239.4 ± 0.3 ly (73.41 ± 0.08 pc) |
| Details[3] | |
| Mass | 0.679+0.095 −0.057 M☉ |
| Radius | 0.672±0.010 R☉ |
| Luminosity | 0.129±0.004 L☉ |
| Surface gravity (log g) | 4.57±0.05 cgs |
| Temperature | 4227±85 K |
| Metallicity[Fe/H] | −0.10±0.07 dex |
| Rotation | 30.63±3.81 d |
| Rotational velocity (v sin i) | 1.5±0.7 km/s |
| Age | 6.7+5.1 −5.2 Gyr |
| Other designations | |
| LP 62-217,NLTT 24401,TOI-1260,TIC 355867695,2MASS J10283500+6551163[4] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
TOI-1260 is a single high-proper-motionK-typemain-sequencestar in theconstellation ofUrsa Major. Its surface temperature is 4227±85K. TOI-1260 has an orange hue and is too faint to be seen with thenaked eye, or a smalltelescope.[5] It has anapparent visual magnitude of 11.922±0.034. Based uponparallax measurements, it is located 239light-years from theSun. The object is drifting towards the Sun with aradial velocity of -16.7 km/s.[1]
TOI-1260 has three known planets, two discovered in 2021[2] and one in 2022 by thetransit method.[6]
None of these three planets orbit in thehabitable zone. All aresub-Neptunes, with masses and radii indicating that they are partly composed of gas.[3]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 8.56±1.54 M🜨 | 0.0367±0.0011 | 3.127463±0.000005 | 0 | 89.03±0.61° | 2.41±0.05 R🜨 |
| c | 13.20±4.23 M🜨 | 0.0657±0.0020 | 7.493134±0.000020 | 0 | 87.97±0.11° | 2.76±0.07 R🜨 |
| d | 11.84±7.79 M🜨 | 0.1116±0.0033 | 16.608164±0.000083 | 0 | 89.14±0.10° | 3.12±0.08 R🜨 |
