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TOI-1260#Planetary system

{{Short description|K-type main-sequence star in the constellation Ursa Major}}

{{Starbox begin}}

{{Starbox observe

| epoch = RA2000

| constell = Ursa Major

| ra = {{RA|10|28|35.025}}

| dec = {{DEC|+65|51|16.38}}

| appmag_v = 11.875

}}

{{Starbox character

| type = Main sequence

| class = K6 V

}}

{{Starbox astrometry

| radial_v = {{val|−16.70|0.40}}

| prop_mo_ra = −177.340

| prop_mo_dec = −81.693

| pm_footnote =

| parallax = 13.6226

| p_error = 0.0147

| parallax_footnote =

}}

{{Starbox detail

| source =

| mass = {{val|0.679|0.095|0.057}}

| radius = {{val|0.672|0.010}}

| temperature = {{val|4227|85}}

| luminosity = {{val|0.129|0.004}}

| gravity = {{val|4.57|0.05}}

| metal_fe = {{val|−0.10|0.07}}

| rotation = {{val|30.63|3.81|ul=d}}

| rotational_velocity = {{val|1.5|0.7}}

| age_gyr = {{val|6.7|5.1|5.2}}

}}

{{Starbox catalog

| names = {{odlist | 2MASS=J10283500+6551163 | LP=62-217 | NLTT=24401 | TIC=355867695 | TOI=1260}}

}}

{{Starbox reference

| Simbad = LP+62-217

| NSTED = TOI-1260

}}

{{Starbox end}}

TOI-1260 is a single high-proper-motion K-type main-sequence star in the constellation of Ursa Major. Its surface temperature is 4227{{±|85}} K. TOI-1260 has an orange hue and is too faint to be seen with the naked eye, or a small telescope.{{Cite web |title=★ TOI 1260 |url=https://www.stellarcatalog.com/stars/toi-1260 |access-date=2025-04-21 |website=Stellar Catalog |language=en}} It has an apparent visual magnitude of 11.922{{±|0.034}}. Based upon parallax measurements, it is located 239 light-years from the Sun. The object is drifting towards the Sun with a radial velocity of -16.7 km/s.

Planetary system

TOI-1260 has three known planets, two discovered in 2021 and one in 2022 by the transit method.{{Cite web |date=2022-12-23 |title=TOI-1260 d - NASA Science |url=https://science.nasa.gov/exoplanet-catalog/toi-1260-d/ |access-date=2025-04-21 |language=en-US}}

None of these three planets orbit in the habitable zone. All are sub-Neptunes, with masses and radii indicating that they are partly composed of gas.

{{OrbitboxPlanet begin

| name = TOI-1260

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = b

| mass_earth = {{val|8.56|1.54}}

| radius_earth = {{val|2.41|0.05}}

| semimajor = {{val|0.0367|0.0011}}

| period = {{val|3.127463|0.000005}}

| eccentricity = 0

| inclination = {{val|89.03|0.61}}

}}

{{OrbitboxPlanet

| exoplanet = c

| mass_earth = {{val|13.20|4.23}}

| radius_earth = {{val|2.76|0.07}}

| semimajor = {{val|0.0657|0.0020}}

| period = {{val|7.493134|0.000020}}

| eccentricity = 0

| inclination = {{val|87.97|0.11}}

}}

{{OrbitboxPlanet

| exoplanet = d

| mass_earth = {{val|11.84|7.79}}

| radius_earth = {{val|3.12|0.08}}

| semimajor = {{val|0.1116|0.0033}}

| period = {{val|16.608164|0.000083}}

| eccentricity = 0

| inclination = {{val|89.14|0.10}}

}}

{{Orbitbox end}}

See also

References

{{Reflist|refs=

{{cite simbad|title=LP 62-217 |access-date=2025-04-22}}

{{Cite Gaia DR3|1053809778428567680}}

{{cite journal |last1=Georgieva |first1=I. Y. |last2=Persson |first2=C. M. |display-authors=etal |date=August 2021 |title=Hot planets around cool stars - two short-period mini-Neptunes transiting the late K-dwarf TOI-1260 |journal=Monthly Notices of the Royal Astronomical Society |volume=505 |issue=4 |pages=4684–4701 |doi=10.1093/mnras/stab1464 |doi-access=free |arxiv=2104.05653 |bibcode=2021MNRAS.505.4684G}}

{{Cite journal |last1=Lam |first1=K W F |last2=Cabrera |first2=J |last3=Hooton |first3=M J |last4=Alibert |first4=Y |last5=Bonfanti |first5=A |last6=Beck |first6=M |last7=Deline |first7=A |last8=Florén |first8=H-G |last9=Simon |first9=A E |last10=Fossati |first10=L |last11=Persson |first11=C M |last12=Fridlund |first12=M |last13=Salmon |first13=S |last14=Hoyer |first14=S |last15=Osborn |first15=H P |date=2023-02-11 |title=Discovery of TOI-1260d and the characterization of the multiplanet system |url=https://academic.oup.com/mnras/article/519/1/1437/6889532 |journal=Monthly Notices of the Royal Astronomical Society |volume=519 |issue=1 |pages=1437–1451 |doi=10.1093/mnras/stac3639 |doi-access=free |issn=0035-8711 |arxiv=2212.04307 |bibcode=2023MNRAS.519.1437L}}

}}

{{Sky|12|26|17.8916|-|51|21|46.2141}}

{{Ursa Major}}

Category:Planetary systems with three confirmed planets

J12261789-5121462

Category:K-type main-sequence stars

1260