| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
K2-260 DR2 3394923127797114496 J05072816+1652037 |
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| RA | 05:07:28.1588 | DEC | +16:52:03.795 | ||
| Parallax 1.479 mas |
P.M. RA 0.667 mas/y |
P.M. DEC -6.045 mas/y |
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| MagV 12.69 |
MagR 12.53 |
MagI 12.01 |
MagJ 11.4 |
MagH 11.189 |
MagK 11.093 |
| MagG 12.467 |
MagGBP 12.798 |
MagGRP 11.973 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
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|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2457946.81948 ± 0.00011 BJDTDB |
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| Period 2.62669745 ± 6e-07 days |
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| Transit Parameters | |||||
| Johnson et al. 2018 | |||||
| Rp/Rs 0.0973 ± 0.0003 |
a/Rs** 5.18 +0.06 -0.06 |
i 88.7 +0.9 -1.0 deg |
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| e - |
ω - deg |
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| DepthR* 12.44 mmag |
Duration* 4.26 hours |
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|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Johnson et al. 2018 | |||||
| Teff 6367.0 +250.0 -250.0 K |
Log(g) 4.125 +0.024 -0.024 cm/s2 |
Fe/H -0.14 +0.15 -0.15 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 6.75" | ||||
| Total Observations (Recent) | 55 (2) | ||||
| O-C | -1.44 ± 1.79 minutes | ||||
| ExoClock Observations (Recent) | 17 (2) | ||||
| Space Observations (Recent) | 37 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | 0.09369 ± 0.00019 | ||||
| TESS Rp/Rs | 0.09441 ± 0.00061 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| K2-260b (MEDIUM) 2025-11-09 | Kevin Johnson Holbrook Observatory | Meade LX50 10" Atik 383L+ / R / 120.0 | -1.62 ± 2.88 | |
| K2-260b (MEDIUM) 2025-10-11 | Ivo Silvestri Trevinca Skies | Skywatcher Newton 250pds ASI2600MM Duo / Lum / 60.0 | -0.22 ± 4.18 | |
| K2-260b (MEDIUM) 2024-12-20 | David Quiles David Quiles Observatory | Celestron EDGEHD 800 Omegon veTEC 571M / R / 180.0 | -1.79 ± 2.74 | |
| K2-260b (MEDIUM) 2024-02-01 | Adrian Jones Private Observatory (I64) | Meade ACF 30cm QSI 583 / Lum / 150.0 | -3.53 ± 2.45 | |
| K2-260b (MEDIUM) 2024-02-01 | Francesco Scaggiante Gruppo Astrofili Salese "GALILEO GALILEI" | NEWTON 410/1710 Player One Astronomy Poseidon-M Pro (IMX571) / R / 100.0 | -6.85 ± 6.91 | |
| K2-260b (MEDIUM) 2024-01-11 | Francesco Scaggiante Gruppo Astrofili Salese "GALILEO GALILEI" | NEWTON 410/1710 Player One Astronomy Poseidon-M Pro (IMX571) / R / 80.0 | -2.41 ± 4.46 | |
| K2-260b (MEDIUM) 2023-10-22 | Bryan Martin Tiger Butte Observatory Remote | AG Optical IDK ZWO ASI 294 / R / 180.0 | 8.27 ± 5.04 | |
| K2-260b (MEDIUM) 2022-12-26 | Adam Popowicz Otivar dome2 | Newton 12" ASA ASI ZWO 1600MM / R / 165.0 | 4.26 ± 1.87 | |
| K2-260b (MEDIUM) 2022-12-26 | Simon Dawes William James II Observatory | Skywatcher MN190 2 ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 180.0 | 0.37 ± 4.61 | |
| K2-260b (MEDIUM) 2022-12-26 | Marc Serrau A77 Dauban | Celestron 11 QHY268 Mono / Clear / 180.0 | -3.38 ± 2.59 | |
| K2-260b (MEDIUM) 2022-12-24 | Bryan Martin Tiger Butte Observatory Remote | AG Optical IDK ZWO ASI 294 / R / 120.0 | -6.4 ± 3.74 | |
| K2-260b (MEDIUM) 2022-11-20 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / Lum / 120.0 | 2.19 ± 1.87 | |
| K2-260b (MEDIUM) 2022-10-22 | Jeff Kraehnke Kranky Skies Observatory | Celestron EdgeHD 11-inch f/10 QSI690 / Lum / 240.0 | -1.45 ± 3.74 | |
| K2-260b (MEDIUM) 2021-10-09 | Robert Roth TURMX Observatory | Planewave CDK17 QHY600M / rpr / 120.0 | -1.4 ± 2.02 | |
| K2-260b (MEDIUM) 2021-10-09 | Adam Popowicz Observatory Pyskowice | RC12" GSO ASI ZWO 1600 MM / ATIK 11000M / R / 360.0 | -2.84 ± 4.32 | |
| K2-260b (MEDIUM) 2020-12-24 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -0.66 ± 1.87 | |
| K2-260b (MEDIUM) 2020-11-12 | Carmelo Falco GALHassin Robotic Telescope 2 (GRT2) | Giacometti-Fogale RC16 Andor Apogee Aspen CG16M / rpr / 90.0 | 4.18 ± 2.02 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| K2-260b (MEDIUM) 2023-11-09 | TESS | 6.43 ± 2.3 | ||
| K2-260b (MEDIUM) 2023-11-07 | TESS | -4.81 ± 3.17 | ||
| K2-260b (MEDIUM) 2023-11-04 | TESS | -9.13 ± 5.47 | ||
| K2-260b (MEDIUM) 2023-11-01 | TESS | -2.22 ± 2.45 | ||
| K2-260b (MEDIUM) 2023-10-27 | TESS | 1.37 ± 2.45 | ||
| K2-260b (MEDIUM) 2023-10-25 | TESS | 2.52 ± 3.17 | ||
| K2-260b (MEDIUM) 2023-10-22 | TESS | 0.93 ± 3.46 | ||
| K2-260b (MEDIUM) 2023-10-19 | TESS | -0.51 ± 2.74 | ||
| K2-260b (MEDIUM) 2021-10-09 | TESS | -0.97 ± 2.02 | ||
| K2-260b (MEDIUM) 2021-10-06 | TESS | -2.99 ± 1.73 | ||
| K2-260b (MEDIUM) 2021-10-03 | TESS | -0.26 ± 2.02 | ||
| K2-260b (MEDIUM) 2021-10-01 | TESS | 0.6 ± 1.58 | ||
| K2-260b (MEDIUM) 2021-09-25 | TESS | -2.43 ± 2.3 | ||
| K2-260b (MEDIUM) 2021-09-23 | TESS | 1.6 ± 2.02 | ||
| K2-260b (MEDIUM) 2021-09-20 | TESS | 2.6 ± 2.02 | ||
| K2-260b (MEDIUM) 2021-09-18 | TESS | -0.57 ± 2.74 | ||
| K2-260b (MEDIUM) 2020-12-16 | TESS | 4.23 ± 2.3 | ||
| K2-260b (MEDIUM) 2020-12-13 | TESS | -0.53 ± 2.02 | ||
| K2-260b (MEDIUM) 2020-12-10 | TESS | -0.96 ± 2.88 | ||
| K2-260b (MEDIUM) 2020-12-08 | TESS | -3.41 ± 2.16 | ||
| K2-260b (MEDIUM) 2020-12-05 | TESS | -2.27 ± 2.3 | ||
| K2-260b (MEDIUM) 2020-11-30 | TESS | -3.14 ± 2.16 | ||
| K2-260b (MEDIUM) 2020-11-27 | TESS | -2.13 ± 2.88 | ||
| K2-260b (MEDIUM) 2020-11-25 | TESS | -3.15 ± 2.3 | ||
| K2-260b (MEDIUM) 2020-11-22 | TESS | -0.56 ± 2.3 | ||
| K2-260b (MEDIUM) 2017-05-23 | K2 | 1.96 ± 1.25 | ||
| K2-260b (MEDIUM) 2017-05-15 | K2 | -0.48 ± 1.58 | ||
| K2-260b (MEDIUM) 2017-05-12 | K2 | -0.21 ± 0.63 | ||
| K2-260b (MEDIUM) 2017-05-05 | K2 | 5.3 ± 1.24 | ||
| K2-260b (MEDIUM) 2017-04-27 | K2 | -3.68 ± 1.58 | ||
| K2-260b (MEDIUM) 2017-04-24 | K2 | 0.35 ± 0.62 | ||
| K2-260b (MEDIUM) 2017-04-16 | K2 | -0.09 ± 0.49 | ||
| K2-260b (MEDIUM) 2017-04-11 | K2 | -0.81 ± 0.65 | ||
| K2-260b (MEDIUM) 2017-03-21 | K2 | -0.56 ± 1.27 | ||
| K2-260b (MEDIUM) 2017-03-18 | K2 | -0.81 ± 0.45 | ||
| K2-260b (MEDIUM) 2017-03-16 | K2 | -1.07 ± 0.35 | ||
| K2-260b (MEDIUM) 2017-03-13 | K2 | 2.73 ± 1.4 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2017-03-08 | Johnson et al. 2018 | 0.2 ± 0.13 | ||