| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HD 147506 DR2 1380825667768742144 J16203635+4102531 |
||||
| RA | 16:20:36.3579 | DEC | +41:02:53.109 | ||
| Parallax 7.797 mas |
P.M. RA -10.312 mas/y |
P.M. DEC -29.198 mas/y |
|||
| MagV 8.69 |
MagR* 8.417 |
MagI* 8.16 |
MagJ 7.796 |
MagH 7.652 |
MagK 7.603 |
| MagG 8.598 |
MagGBP 8.851 |
MagGRP 8.238 |
|||
| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
|||||
|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2459068.906048 ± 8.3e-05 BJDTDB |
|||||
| Period 5.63346772 ± 4.4e-07 days |
|||||
| Transit Parameters | |||||
| Pál et al. 2010 | |||||
| Rp/Rs 0.07227 ± 0.00061 |
a/Rs 8.99 +0.39 -0.41 |
i 86.72 +1.12 -0.87 deg |
|||
| e 0.5171 +0.0033 -0.0033 |
ω 185.22 +0.95 -0.95 deg |
||||
| DepthR* 6.62 mmag |
Duration* 4.31 hours |
||||
|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
|||||
| Limb Darkening Parameters | |||||
| Torres et al. 2008 | |||||
| Teff 6290.0 +110.0 -110.0 K |
Log(g) 4.2 +0.04 -0.05 cm/s2 |
Fe/H 0.12 +0.08 -0.08 dex |
|||
| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 5.0" | ||||
| Total Observations (Recent) | 26 (1) | ||||
| O-C | -1.15 ± 1.13 minutes | ||||
| ExoClock Observations (Recent) | 6 (1) | ||||
| Space Observations (Recent) | 16 (0) | ||||
| ETD Observations (Recent) | 0 (0) | ||||
| Literature Mid-times (Recent) | 4 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.06879 ± 0.00012 | ||||
ExoClock Observations |
||||
| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HAT-P-2b (MEDIUM) 2025-04-15 | Paolo Arcangelo Matassa P:M.P.H.R. Deep Sky (K81) | Ritchey Chretien 40cm-F5.3 CCD ICX453AQ / R / 30.0 | -3.65 ± 4.46 | |
| HAT-P-2b (MEDIUM) 2024-05-12 | Manfred Raetz privat observatory Herges-Hallenberg | SCT 280/1850 (C11 with Starizona reducer) Moravian Instruments G2-1600 / I / 90.0 | -0.97 ± 1.2 | |
| HAT-P-2b (MEDIUM) 2024-04-26 | Deborah Smith El Olivar, Gergal, Spain | Celestron C8 ASI2600MM / I / 60.0 | -1.11 ± 5.47 | |
| HAT-P-2b (MEDIUM) 2023-05-29 | Mu-Chen Hsieh NTHU Observatory | Showa 250mm refractor ZWOASI6200MMpro / R / 60.0 | -0.39 ± 4.32 | |
| HAT-P-2b (MEDIUM) 2022-05-05 | Robert Roth TURMX Observatory | Planewave CDK17 QHY600M / ipr / 20.0 | 1.58 ± 1.58 | |
| HAT-P-2b (MEDIUM) 2022-03-21 | Tõnis Eenmäe Tartu Observatory | Planewave CDK 12.5 Apogee Alta U42 / B / 60.0 | -0.23 ± 2.16 | |
Space Observations |
||||
| Planet Observation Date |
Mission | O-C minutes |
||
| HAT-P-2b (MEDIUM) 2022-06-08 | TESS | -0.02 ± 0.46 | ||
| HAT-P-2b (MEDIUM) 2022-06-03 | TESS | -0.14 ± 0.46 | ||
| HAT-P-2b (MEDIUM) 2022-05-28 | TESS | 0.06 ± 0.49 | ||
| HAT-P-2b (MEDIUM) 2022-05-22 | TESS | -0.25 ± 0.48 | ||
| HAT-P-2b (MEDIUM) 2022-05-17 | TESS | -0.4 ± 0.55 | ||
| HAT-P-2b (MEDIUM) 2022-05-11 | TESS | 0.23 ± 0.59 | ||
| HAT-P-2b (MEDIUM) 2022-04-30 | TESS | -0.19 ± 0.53 | ||
| HAT-P-2b (MEDIUM) 2020-06-06 | TESS | 0.21 ± 0.49 | ||
| HAT-P-2b (MEDIUM) 2020-05-31 | TESS | -0.25 ± 0.48 | ||
| HAT-P-2b (MEDIUM) 2020-05-20 | TESS | 0.59 ± 0.52 | ||
| HAT-P-2b (MEDIUM) 2020-05-14 | TESS | -0.28 ± 0.49 | ||
| HAT-P-2b (MEDIUM) 2020-05-09 | TESS | -0.41 ± 0.42 | ||
| HAT-P-2b (MEDIUM) 2020-05-03 | TESS | -0.64 ± 0.48 | ||
| HAT-P-2b (MEDIUM) 2020-04-28 | TESS | 0.61 ± 0.49 | ||
| HAT-P-2b (MEDIUM) 2020-04-22 | TESS | 0.59 ± 0.43 | ||
| HAT-P-2b (MEDIUM) 2020-04-16 | TESS | 0.27 ± 0.43 | ||
Literature Mid-times |
||||
| Planet Observation Date |
Reference | O-C minutes |
||
| 2011-07-13 | Lewis et al. 2013 | -1.52 ± 0.96 | ||
| 2010-04-02 | Lewis et al. 2013 | 2.0 ± 0.86 | ||
| 2007-09-10 | Lewis et al. 2013 | -2.4 ± 1.73 | ||
| 2007-04-22 | Bakos et al. 2007 | -0.39 ± 1.01 | ||