| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
K2-285 DR2 2657374606238804992 J23173222+0118010 |
||||
| RA | 23:17:32.2274 | DEC | +01:18:01.074 | ||
| Parallax 6.425 mas |
P.M. RA 15.023 mas/y |
P.M. DEC -33.874 mas/y |
|||
| MagV 11.75 |
MagR 11.88 |
MagI* 10.805 |
MagJ 10.477 |
MagH 10.069 |
MagK 9.971 |
| MagG 11.804 |
MagGBP 12.282 |
MagGRP 11.194 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Not verified 
|
|||||
|---|---|---|---|---|---|
| Palle et al. 2019 | |||||
| Mid-time 2457744.53906 ± 0.00039 BJDTDB |
|||||
| Period 7.138048 ± 7.2e-05 days |
|||||
| Transit Parameters | |||||
| Palle et al. 2019 | |||||
| Rp/Rs 0.04115 ± 0.0003 |
a/Rs 22.51 +0.2 -0.2 |
i 89.861 +0.001 -0.001 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 2.33 mmag |
Duration* 2.52 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Palle et al. 2019 | |||||
| Teff 4975.0 +95.0 -95.0 K |
Log(g) 4.4 +0.1 -0.1 cm/s2 |
Fe/H 0.0 +0.05 -0.05 dex |
|||
| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | ALERT | ||||
| Minimum aperture | 31.37" | ||||
| Total Observations (Recent) | 2 (1) | ||||
| O-C | -12.43 ± 1.93 minutes | ||||
| ExoClock Observations (Recent) | 2 (1) | ||||
| Space Observations (Recent) | 0 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 0 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | - | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| K2-285c (ALERT) 2025-10-01 | Xavier Bros Anysllum | Newton Orion Optics 14" f4.6 ASI2600MM Pro / V / 120.0 | 18.7 ± 6.48 | |
| K2-285c (ALERT) 2024-08-13 | Lorenzo Betti Osservatorio Polifunzionale del Chianti | RC-80cm Moravian G4 - KAF 09000 / R / 120.0 | -15.45 ± 2.02 | |