TOI-1136#Planetary system

TOI-1136 was discovered to have six transiting planets in 2022 using the Transiting Exoplanet Survey Satellite (TESS), all orbiting closer to their star than Mercury is to the Sun. All of them are Neptune-sized or mini-Neptunes, and their masses have been measured using a combination of radial velocity and transit-timing variations, showing them to have low densities. The planets are in an orbital resonance, with period ratios near 3:2, 2:1, 3:2, 7:5, and 3:2.

A possible single transit of a seventh planet was also identified. This candidate planet would also be sub-Neptune-sized, but its orbit is poorly constrained. If this is confirmed, it would make TOI-1136 one of the largest known planetary systems.

{{Orbitbox planet begin

| table_ref =

}}

{{Orbitbox planet

| exoplanet = b

| mass_earth = {{val|3.50|0.8|0.7}}

| radius_earth = {{val|1.90|0.21|0.15}}

| semimajor = {{val|0.05106|0.0009|fmt=none}}

| period = {{val|4.1727|0.0003}}

| eccentricity = {{val|0.027|0.009}}

| inclination = {{val|86.44|0.27|0.21}}

}}

{{Orbitbox planet

| exoplanet = c

| mass_earth = {{val|6.32|1.1|1.3}}

| radius_earth = {{val|2.879|0.060|0.062}}

| semimajor = {{val|0.0669|0.0005}}

| period = {{val|6.2574|0.0002}}

| eccentricity = {{val|0.11|0.01}}

| inclination = {{val|89.42|0.39|0.55}}

}}

{{Orbitbox planet

| exoplanet = d

| mass_earth = {{val|8.35|1.8|1.6}}

| radius_earth = {{val|4.627|0.077|0.072}}

| semimajor = {{val|0.1062|0.0008}}

| period = {{val|12.5199|0.0004}}

| eccentricity = {{val|0.042|0.004}}

| inclination = {{val|89.41|0.28}}

}}

{{Orbitbox planet

| exoplanet = e

| mass_earth = {{val|6.07|1.09|1.01}}

| radius_earth = {{val|2.639|0.072|0.088}}

| semimajor = {{val|0.139|0.002}}

| period = {{val|18.801|0.001}}

| eccentricity = {{val|0.0425|0.004}}

| inclination = {{val|89.31|0.26|0.18}}

}}

{{Orbitbox planet

| exoplanet = f

| mass_earth = {{val|9.7|3.9|3.7}}

| radius_earth = {{val|3.88|0.11}}

| semimajor = {{val|0.174|0.002}}

| period = {{val|26.321|0.001}}

| eccentricity = {{val|0.001|0.001}}

| inclination = {{val|89.38|0.22|0.17}}

}}

{{Orbitbox planet

| exoplanet = g

| mass_earth = {{val|5.6|4.1|3.2}}

| radius_earth = {{val|2.53|0.11|0.12}}

| semimajor = {{val|0.229|0.003}}

| period = {{val|39.545|0.002}}

| eccentricity = {{val|0.04|0.01}}

| inclination = {{val|89.65|0.18|0.13}}

}}

{{Orbitbox planet hypothetical

| exoplanet = h

| mass_earth = <18.8

| radius_earth = {{val|2.68|0.20|0.18}}

| semimajor = ~0.36

| period = ~77

| eccentricity = {{val|0.04|0.05|0.03}}

| inclination = {{val|89.68|0.02}}

}}

{{Orbitbox end}}

• HD 110067
• Kepler-90
• Kepler-385
• TOI-178
• TRAPPIST-1

{{reflist|refs=

{{cite simbad |title=TOI-1136 |access-date=10 December 2023}}

{{Cite Gaia DR3|1677343097418015488}}

{{cite journal |last1=Dai |first1=Fei |last2=Masuda |first2=Kento |display-authors=etal |date=February 2023 |title=TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain |journal=The Astronomical Journal |volume=165 |issue=2 |pages= |doi=10.3847/1538-3881/aca327 |doi-access=free |arxiv=2210.09283 |bibcode=2023AJ....165...33D}}

{{cite journal |last1=Beard |first1=Corey |last2=Robertson |first2=Paul |display-authors=etal |date=February 2024 |title=The TESS-Keck Survey XVII: Precise Mass Measurements in a Young, High Multiplicity Transiting Planet System using Radial Velocities and Transit Timing Variations |journal=The Astronomical Journal |volume=167 |issue=2 |pages= |doi=10.3847/1538-3881/ad1330 |doi-access=free |arxiv=2312.04635 |bibcode=2024AJ....167...70B}}

}}

{{Draco (constellation)}}

Category:Draco (constellation)

Category:G-type main-sequence stars

Category:Planetary systems with six confirmed planets

J12484436+6451191

BD+65 0902

1136

142276270