| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HD 149026 DR2 1331356474971716992 J16302962+3820503 |
||||
| RA | 16:30:29.6184 | DEC | +38:20:50.310 | ||
| Parallax 13.153 mas |
P.M. RA -77.899 mas/y |
P.M. DEC 52.564 mas/y |
|||
| MagV 8.14 |
MagR* 7.808 |
MagI* 7.505 |
MagJ 7.118 |
MagH 6.899 |
MagK 6.819 |
| MagG 8.014 |
MagGBP 8.324 |
MagGRP 7.588 |
|||
| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2458043.021499 ± 8.4e-05 BJDTDB |
|||||
| Period 2.87588859 ± 1.2e-07 days |
|||||
| Transit Parameters | |||||
| Carter et al. 2009 | |||||
| Rp/Rs 0.0542 ± 0.0009 |
a/Rs 6.01 +0.17 -0.23 |
i 84.5 +0.3 -0.8 deg |
|||
| e - |
ω - deg |
||||
| DepthR* 3.53 mmag |
Duration* 3.25 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Torres et al. 2008 | |||||
| Teff 6160.0 +50.0 -50.0 K |
Log(g) 4.28 +0.04 -0.06 cm/s2 |
Fe/H 0.36 +0.08 -0.08 dex |
|||
| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | LOW | ||||
| Minimum aperture | 8.96" | ||||
| Total Observations (Recent) | 54 (6) | ||||
| O-C | 5.57 ± 0.86 minutes | ||||
| ExoClock Observations (Recent) | 12 (6) | ||||
| Space Observations (Recent) | 25 (0) | ||||
| ETD Observations (Recent) | 1 (0) | ||||
| Literature Mid-times (Recent) | 16 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.05159 ± 0.00011 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HD149026b (LOW) 2025-07-02 | Giovanni Calapai Home Astronomical Observatory | Celestron 11 Schmidt-Cassegrain Atik 314L+ / Clear / 90.0 | -5.95 ± 4.32 | |
| HD149026b (LOW) 2025-07-02 | Michael Irzyk melun | C14 altair 2600 / ipr / 30.0 | -6.81 ± 2.88 | |
| HD149026b (LOW) 2025-05-16 | Daniel Kustrin Alnitak | PlaneWave CDK Moravian C3-61000 Pro / R / 30.0 | 9.06 ± 6.34 | |
| HD149026b (LOW) 2025-05-16 | Michael Nezel Celle Observatory | CDK 14 QHY 268M / R / 60.0 | 1.28 ± 2.59 | |
| HD149026b (LOW) 2025-03-06 | Matthieu Bachschmidt Gonachon | Celestron C11 SBIG ST8XME / R / 30.0 | 2.45 ± 6.91 | |
| HD149026b (LOW) 2025-03-06 | Livia Moretti Leavitt Observatory | Ritchey-Chrétien 10'' f/8 QHY268 / R / 30.0 | 1.91 ± 1.25 | |
| HD149026b (LOW) 2024-06-26 | Ramon Naves Montcabrer | Meade LX200 12" ACF Moravian G4-9000 / ipr / 60.0 | 20.74 ± 1.73 | |
| HD149026b (LOW) 2023-07-14 | Mark van der Grijp Trevinca Observatory | William Optics FLT132 Poseidon-M Pro / R / 90.0 | 4.2 ± 7.63 | |
| HD149026b (LOW) 2023-05-29 | Lionel Rousselot Private observatory Vierzon | Newton 250/1000 ZWO 533 monochrome / rpr / 30.0 | -4.27 ± 7.2 | |
| HD149026b (LOW) 2022-04-07 | Alvaro Fornas Centro Astronómico Alto Turia (CAAT). MPC J57 | Planewave CDK 17" Sbig STXL 11002 / Lum / 30.0 | 2.57 ± 4.32 | |
| HD149026b (LOW) 2021-06-11 | Carmelo Falco GALHassin Robotic Telescope 2 (GRT2) | Giacometti-Fogale RC16 Andor Apogee Aspen CG16M / zpr / 30.0 | -0.44 ± 1.58 | |
| HD149026b (LOW) 2020-07-21 | Carmelo Falco GALHassin Robotic Telescope 2 (GRT2) | Giacometti-Fogale RC16 Andor Apogee Aspen CG16M / Clear / 60.0 | 2.02 ± 3.46 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| HD149026b (LOW) 2022-06-12 | TESS | -0.67 ± 0.53 | ||
| HD149026b (LOW) 2022-06-09 | TESS | 0.26 ± 0.52 | ||
| HD149026b (LOW) 2022-05-28 | TESS | 0.49 ± 0.56 | ||
| HD149026b (LOW) 2022-05-25 | TESS | 0.73 ± 0.56 | ||
| HD149026b (LOW) 2022-05-20 | TESS | 0.05 ± 0.53 | ||
| HD149026b (LOW) 2022-05-17 | TESS | 0.59 ± 0.52 | ||
| HD149026b (LOW) 2022-05-14 | TESS | -0.89 ± 0.52 | ||
| HD149026b (LOW) 2022-05-11 | TESS | -0.15 ± 0.59 | ||
| HD149026b (LOW) 2022-05-02 | TESS | 0.37 ± 0.59 | ||
| HD149026b (LOW) 2022-04-30 | TESS | 0.87 ± 0.52 | ||
| HD149026b (LOW) 2022-04-27 | TESS | -0.3 ± 0.6 | ||
| HD149026b (LOW) 2020-06-05 | TESS | 0.11 ± 0.55 | ||
| HD149026b (LOW) 2020-06-03 | TESS | 0.32 ± 0.55 | ||
| HD149026b (LOW) 2020-05-31 | TESS | -0.98 ± 0.58 | ||
| HD149026b (LOW) 2020-05-28 | TESS | -0.82 ± 0.49 | ||
| HD149026b (LOW) 2020-05-25 | TESS | 0.28 ± 0.62 | ||
| HD149026b (LOW) 2020-05-22 | TESS | -0.45 ± 0.48 | ||
| HD149026b (LOW) 2020-05-19 | TESS | 0.32 ± 0.55 | ||
| HD149026b (LOW) 2020-05-16 | TESS | 1.52 ± 0.58 | ||
| HD149026b (LOW) 2020-05-11 | TESS | -0.45 ± 0.52 | ||
| HD149026b (LOW) 2020-05-08 | TESS | -0.38 ± 0.58 | ||
| HD149026b (LOW) 2020-05-05 | TESS | -0.05 ± 0.59 | ||
| HD149026b (LOW) 2020-04-26 | TESS | 1.34 ± 0.63 | ||
| HD149026b (LOW) 2020-04-23 | TESS | -1.51 ± 0.56 | ||
| HD149026b (LOW) 2020-04-20 | TESS | -0.37 ± 0.55 | ||
ETD Observations |
||||
| Planet Observation Date |
Observer(s) | ETD link | O-C minutes |
|
| HD149026b (LOW) 2016-06-28 | Florian Signoret, Jean-Bernard Pioppa | 1468004686 | -0.12 ± 1.58 | |
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2008-05-11 | Knutson et al. 2009 | 1.49 ± 0.58 | ||
| 2008-03-20 | Carter et al. 2009 | 1.61 ± 0.68 | ||
| 2008-02-09 | Carter et al. 2009 | -1.27 ± 0.49 | ||
| 2007-12-25 | Carter et al. 2009 | 0.34 ± 0.33 | ||
| 2007-12-22 | Carter et al. 2009 | -0.18 ± 0.43 | ||
| 2007-09-12 | Stevenson et al. 2012 | 0.11 ± 0.72 | ||
| 2007-08-14 | Nutzman et al. 2009 | -0.92 ± 0.72 | ||
| 2007-06-21 | Winn et al. 2008 | -2.24 ± 2.45 | ||
| 2007-06-18 | Winn et al. 2008 | 0.62 ± 3.02 | ||
| 2006-04-27 | Winn et al. 2008 | 0.4 ± 3.46 | ||
| 2005-07-02 | Charbonneau et al. 2006 | 1.43 ± 3.31 | ||
| 2005-07-02 | Charbonneau et al. 2006 | -0.59 ± 1.44 | ||
| 2005-06-09 | Winn et al. 2008 | 0.14 ± 4.46 | ||
| 2005-06-06 | Winn et al. 2008 | -3.62 ± 3.02 | ||
| 2005-06-06 | Charbonneau et al. 2006 | -4.19 ± 1.73 | ||
| 2005-05-14 | Winn et al. 2008 | 3.02 ± 3.17 | ||