| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
G 273-20 DR2 2437684039751295744 J23203386-1002094 |
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| RA | 23:20:33.8840 | DEC | -10:02:09.490 | ||
| Parallax 10.605 mas |
P.M. RA 133.632 mas/y |
P.M. DEC -144.15 mas/y |
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| MagV* 13.858 |
MagR* 12.924 |
MagI* 12.05 |
MagJ 10.908 |
MagH 10.278 |
MagK 10.06 |
| MagG 13.153 |
MagGBP 14.145 |
MagGRP 12.172 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Not verified 
|
|||||
|---|---|---|---|---|---|
| Incha et al. 2023 | |||||
| Mid-time 2458373.0321 ± 0.0009 BJDTDB |
|||||
| Period 6.535 ± 0.0014 days |
|||||
| Transit Parameters | |||||
| Incha et al. 2023 | |||||
| Rp/Rs 0.0525 ± 0.0022 |
a/Rs 23.4 +2.3 -5.1 |
i 89.0 +0.71 -1.2 deg |
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| e - |
ω - deg |
||||
| DepthR* 3.53 mmag |
Duration* 2.07 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Incha et al. 2023 | |||||
| Teff 3861.0 +77.0 -77.0 K |
Log(g) 4.67 +0.01 -0.01 cm/s2 |
Fe/H 0.0 +0.0 0.0 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | ALERT | ||||
| Minimum aperture | 30.3" | ||||
| Total Observations (Recent) | 3 (1) | ||||
| O-C | -54.88 ± 2.15 minutes | ||||
| ExoClock Observations (Recent) | 2 (1) | ||||
| Space Observations (Recent) | 1 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | 0.0487 ± 0.0026 | ||||
| TESS Rp/Rs | - | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| K2-417b (ALERT) 2025-11-07 | Yen-Hsing Lin Lulin Observatory | Lulin LOT Andor 936 / R / 30.0 | -62.5 ± 2.3 | |
| K2-417b (ALERT) 2024-10-04 | Mercedes Correa Montsec Observatory | RC 80 cm iKON XL / rpr / 120.0 | -2.16 ± 6.05 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| K2-417b (ALERT) 2018-09-11 | K2 | 1.01 ± 2.59 | ||