| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
K2-34 DR2 665757593450097920 J08301891+2214092 |
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| RA | 08:30:18.9093 | DEC | +22:14:09.293 | ||
| Parallax 2.84 mas |
P.M. RA -14.196 mas/y |
P.M. DEC 1.046 mas/y |
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| MagV 11.45 |
MagR* 11.231 |
MagI* 10.82 |
MagJ 10.528 |
MagH 10.258 |
MagK 10.193 |
| MagG 11.436 |
MagGBP 11.732 |
MagGRP 11.002 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2457839.334478 ± 4.4e-05 BJDTDB |
|||||
| Period 2.99563555 ± 2e-07 days |
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| Transit Parameters | |||||
| Hirano et al. 2016 | |||||
| Rp/Rs 0.0887 ± 0.0012 |
a/Rs 6.7 +0.4 -0.3 |
i 83.0 +0.7 -0.6 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 8.08 mmag |
Duration* 2.48 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Hirano et al. 2016 | |||||
| Teff 6087.0 +38.0 -38.0 K |
Log(g) 4.11 +0.07 -0.07 cm/s2 |
Fe/H 0.15 +0.04 -0.04 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 7.59" | ||||
| Total Observations (Recent) | 80 (2) | ||||
| O-C | -0.27 ± 0.49 minutes | ||||
| ExoClock Observations (Recent) | 17 (2) | ||||
| Space Observations (Recent) | 63 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | 0.089604 ± 8.5e-05 | ||||
| TESS Rp/Rs | 0.08934 ± 0.00042 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| K2-34b (MEDIUM) 2026-02-21 | Ivo Silvestri Trevinca Skies | Skywatcher Newton 250pds ASI2600MM Duo / rpr / 60.0 | 0.6 ± 4.61 | |
| K2-34b (MEDIUM) 2026-01-25 | Pieter Vuylsteke Marvel (La Palma) | ASA Ritchey ZWO 6200mm / gpr / 60.0 | 0.18 ± 0.65 | |
| K2-34b (MEDIUM) 2025-02-14 | Yen-Hsing Lin Starry House Observatory | Mewlon 300 CRS ASI 6200MM Pro / Lum / 60.0 | -0.5 ± 1.28 | |
| K2-34b (MEDIUM) 2025-01-12 | Lee YuHsien KMSH Observatory | C14HD QSI-660 / R / 50.0 | -4.16 ± 4.46 | |
| K2-34b (MEDIUM) 2025-01-06 | Yen-Hsing Lin Starry House Observatory | Mewlon 300 CRS ASI 6200MM Pro / Lum / 60.0 | 2.14 ± 2.88 | |
| K2-34b (MEDIUM) 2025-01-03 | Lee YuHsien KMSH Observatory | C14HD QSI-660 / R / 50.0 | 0.32 ± 3.02 | |
| K2-34b (MEDIUM) 2024-12-28 | Lee YuHsien KMSH Observatory | C14HD QSI-660 / R / 60.0 | -0.44 ± 3.46 | |
| K2-34b (MEDIUM) 2024-11-28 | Yen-Hsing Lin Starry House Observatory | Mewlon 300 CRS ASI 6200MM Pro / Lum / 60.0 | -1.99 ± 1.44 | |
| K2-34b (MEDIUM) 2024-11-25 | Yen-Hsing Lin Starry House Observatory | Mewlon 300 CRS ASI 6200MM Pro / Lum / 60.0 | -1.46 ± 2.02 | |
| K2-34b (MEDIUM) 2024-02-09 | Darryl Madison Ajijic Observatory | Celestron CPC 800 Edge HD ZWO2400MC / Clear / 120.0 | 0.76 ± 3.46 | |
| K2-34b (MEDIUM) 2024-02-06 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 5.28 ± 1.58 | |
| K2-34b (MEDIUM) 2024-01-19 | David Bennett Rickford Observatory | GSO RC ZWO ASI2600MM Pro / Clear / 60.0 | 1.41 ± 2.59 | |
| K2-34b (MEDIUM) 2024-01-19 | Adrian Jones Private Observatory (I64) | Meade ACF 30cm QSI 583 / R / 100.0 | -0.6 ± 2.45 | |
| K2-34b (MEDIUM) 2022-01-06 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -1.16 ± 2.45 | |
| K2-34b (MEDIUM) 2021-12-25 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | 0.49 ± 3.6 | |
| K2-34b (MEDIUM) 2021-12-16 | Yves Jongen Deep Sky Chile | Plane Wave CDK 17" Moravian 4G / R / 120.0 | -0.94 ± 2.88 | |
| K2-34b (MEDIUM) 2019-02-13 | Yves Jongen Rasteau Observatory | Plane Wave CDK 17" SBIG STXL 11002 / V / 120.0 | 4.53 ± 2.45 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| K2-34b (MEDIUM) 2023-12-05 | TESS | 1.08 ± 1.35 | ||
| K2-34b (MEDIUM) 2023-12-02 | TESS | 0.21 ± 1.58 | ||
| K2-34b (MEDIUM) 2023-11-29 | TESS | 0.6 ± 1.37 | ||
| K2-34b (MEDIUM) 2023-11-23 | TESS | -0.28 ± 1.32 | ||
| K2-34b (MEDIUM) 2023-11-20 | TESS | 1.86 ± 1.73 | ||
| K2-34b (MEDIUM) 2023-11-17 | TESS | -0.54 ± 1.58 | ||
| K2-34b (MEDIUM) 2023-11-14 | TESS | -1.06 ± 1.73 | ||
| K2-34b (MEDIUM) 2023-11-08 | TESS | 0.05 ± 1.44 | ||
| K2-34b (MEDIUM) 2023-11-05 | TESS | -0.98 ± 1.43 | ||
| K2-34b (MEDIUM) 2023-11-02 | TESS | 0.01 ± 1.73 | ||
| K2-34b (MEDIUM) 2023-10-27 | TESS | 1.98 ± 1.58 | ||
| K2-34b (MEDIUM) 2023-10-24 | TESS | 1.02 ± 1.44 | ||
| K2-34b (MEDIUM) 2023-10-21 | TESS | 1.22 ± 1.58 | ||
| K2-34b (MEDIUM) 2023-10-18 | TESS | 2.68 ± 1.25 | ||
| K2-34b (MEDIUM) 2021-12-28 | TESS | 2.74 ± 1.44 | ||
| K2-34b (MEDIUM) 2021-12-25 | TESS | -1.38 ± 1.44 | ||
| K2-34b (MEDIUM) 2021-12-22 | TESS | 1.69 ± 1.58 | ||
| K2-34b (MEDIUM) 2021-12-19 | TESS | -0.39 ± 1.35 | ||
| K2-34b (MEDIUM) 2021-12-13 | TESS | -1.27 ± 1.32 | ||
| K2-34b (MEDIUM) 2021-12-10 | TESS | -2.11 ± 1.32 | ||
| K2-34b (MEDIUM) 2021-12-07 | TESS | -2.95 ± 1.73 | ||
| K2-34b (MEDIUM) 2021-12-04 | TESS | 0.85 ± 1.58 | ||
| K2-34b (MEDIUM) 2021-12-01 | TESS | -2.56 ± 1.44 | ||
| K2-34b (MEDIUM) 2021-11-28 | TESS | 1.81 ± 1.73 | ||
| K2-34b (MEDIUM) 2021-11-25 | TESS | -1.3 ± 1.58 | ||
| K2-34b (MEDIUM) 2021-11-19 | TESS | -1.49 ± 2.02 | ||
| K2-34b (MEDIUM) 2021-11-16 | TESS | 1.73 ± 1.87 | ||
| K2-34b (MEDIUM) 2021-11-13 | TESS | 1.35 ± 2.16 | ||
| K2-34b (MEDIUM) 2021-11-10 | TESS | 0.06 ± 1.44 | ||
| K2-34b (MEDIUM) 2021-11-04 | TESS | 0.65 ± 1.34 | ||
| K2-34b (MEDIUM) 2021-11-01 | TESS | -0.18 ± 1.58 | ||
| K2-34b (MEDIUM) 2021-10-29 | TESS | -1.56 ± 1.73 | ||
| K2-34b (MEDIUM) 2021-10-23 | TESS | 2.28 ± 1.73 | ||
| K2-34b (MEDIUM) 2021-10-20 | TESS | 0.89 ± 1.58 | ||
| K2-34b (MEDIUM) 2021-10-17 | TESS | 2.24 ± 1.87 | ||
| K2-34b (MEDIUM) 2021-10-14 | TESS | 2.44 ± 1.58 | ||
| K2-34b (MEDIUM) 2018-06-22 | K2 | 0.31 ± 0.3 | ||
| K2-34b (MEDIUM) 2018-06-16 | K2 | -0.48 ± 0.23 | ||
| K2-34b (MEDIUM) 2018-06-07 | K2 | 0.1 ± 0.22 | ||
| K2-34b (MEDIUM) 2018-06-04 | K2 | -0.05 ± 0.17 | ||
| K2-34b (MEDIUM) 2018-06-01 | K2 | 0.03 ± 0.48 | ||
| K2-34b (MEDIUM) 2018-05-20 | K2 | -0.55 ± 0.29 | ||
| K2-34b (MEDIUM) 2018-05-17 | K2 | -0.01 ± 0.24 | ||
| K2-34b (MEDIUM) 2018-02-25 | K2 | 1.53 ± 0.69 | ||
| K2-34b (MEDIUM) 2018-02-19 | K2 | 0.35 ± 0.37 | ||
| K2-34b (MEDIUM) 2018-02-13 | K2 | 1.08 ± 1.24 | ||
| K2-34b (MEDIUM) 2018-02-07 | K2 | 0.32 ± 0.71 | ||
| K2-34b (MEDIUM) 2018-01-20 | K2 | -0.25 ± 0.32 | ||
| K2-34b (MEDIUM) 2018-01-14 | K2 | -0.16 ± 0.33 | ||
| K2-34b (MEDIUM) 2018-01-08 | K2 | -0.74 ± 0.52 | ||
| K2-34b (MEDIUM) 2018-01-02 | K2 | 2.71 ± 3.89 | ||
| K2-34b (MEDIUM) 2017-12-18 | K2 | -0.07 ± 0.3 | ||
| K2-34b (MEDIUM) 2015-07-06 | K2 | -2.44 ± 0.69 | ||
| K2-34b (MEDIUM) 2015-07-03 | K2 | 0.87 ± 1.18 | ||
| K2-34b (MEDIUM) 2015-06-27 | K2 | -3.51 ± 1.12 | ||
| K2-34b (MEDIUM) 2015-06-03 | K2 | 0.33 ± 0.16 | ||
| K2-34b (MEDIUM) 2015-05-31 | K2 | -0.5 ± 0.32 | ||
| K2-34b (MEDIUM) 2015-05-25 | K2 | -0.14 ± 0.23 | ||
| K2-34b (MEDIUM) 2015-05-22 | K2 | 0.3 ± 0.27 | ||
| K2-34b (MEDIUM) 2015-05-16 | K2 | 0.1 ± 0.22 | ||
| K2-34b (MEDIUM) 2015-05-13 | K2 | 0.26 ± 0.36 | ||
| K2-34b (MEDIUM) 2015-05-10 | K2 | 0.71 ± 0.33 | ||
| K2-34b (MEDIUM) 2015-05-01 | K2 | -0.27 ± 0.23 | ||