| The Star | |||||
|---|---|---|---|---|---|
| Simbad GAIA 2MASS |
HAT-P-15 DR2 179498266829041664 J04245952+3927382 |
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| RA | 04:24:59.5347 | DEC | +39:27:38.312 | ||
| Parallax 5.166 mas |
P.M. RA 14.403 mas/y |
P.M. DEC -9.377 mas/y |
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| MagV 12.41 |
MagR 11.81 |
MagI* 11.325 |
MagJ 10.194 |
MagH 9.752 |
MagK 9.641 |
| MagG 11.723 |
MagGBP 12.278 |
MagGRP 11.037 |
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| *Calculated from GAIA magnitudes. | |||||
Ephemeris
- Verified 
|
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|---|---|---|---|---|---|
| Kokori et al. 2025 | |||||
| Mid-time 2458136.59214 ± 0.00026 BJDTDB |
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| Period 10.8634511 ± 1.3e-06 days |
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| Transit Parameters | |||||
| Kovács et al. 2010 | |||||
| Rp/Rs 0.1019 ± 0.0009 |
a/Rs 19.2 +0.6 -0.6 |
i 89.1 +0.2 -0.2 deg |
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| e 0.19 +0.019 -0.019 |
ω 262.0 +1.0 -1.0 deg |
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| DepthR* 13.51 mmag |
Duration* 5.45 hours |
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|
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations. |
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| Limb Darkening Parameters | |||||
| Kovács et al. 2010 | |||||
| Teff 5568.0 +90.0 -90.0 K |
Log(g) 4.38 +0.03 -0.03 cm/s2 |
Fe/H 0.22 +0.08 -0.08 dex |
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| ExoClock Status | |||||
|---|---|---|---|---|---|
| Observing Priority | MEDIUM | ||||
| Minimum aperture | 5.4" | ||||
| Total Observations (Recent) | 24 (2) | ||||
| O-C | 4.07 ± 1.94 minutes | ||||
| ExoClock Observations (Recent) | 20 (2) | ||||
| Space Observations (Recent) | 2 (0) | ||||
| ETD Observations (Recent) | 1 (0) | ||||
| Literature Mid-times (Recent) | 1 (0) | ||||
| Kepler Rp/Rs | - | ||||
| TESS Rp/Rs | 0.09741 ± 0.00088 | ||||
ExoClock Observations |
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| Planet Observation Date |
Observer Observatory |
Telescope Camera / Filter / Exp [s] |
O-C minutes |
|
|---|---|---|---|---|
| HAT-P-15b (MEDIUM) 2026-01-07 | Kohji Tsumura Tokyo City University | Vixen VC200L ZWO ASI 1600MM-PRO / R / 300.0 | -5.67 ± 5.47 | |
| HAT-P-15b (MEDIUM) 2025-12-27 | Kohji Tsumura Tokyo City University | Vixen VC200L ZWO ASI 1600MM-PRO / R / 240.0 | -0.12 ± 8.06 | |
| HAT-P-15b (MEDIUM) 2024-10-29 | Yves Jongen Rasteau Observatory | Plane Wave CDK 17" SBIG STXL 11002 / Lum / 180.0 | 6.64 ± 2.3 | |
| HAT-P-15b (MEDIUM) 2024-10-29 | Pierre Farissier Astroqueyras | FF 200 Moravian G2 4000 / R / 30.0 | 0.73 ± 5.9 | |
| HAT-P-15b (MEDIUM) 2023-12-19 | Adrian Jones Private Observatory (I64) | Meade ACF 30cm QSI 583 / R / 100.0 | 2.0 ± 2.3 | |
| HAT-P-15b (MEDIUM) 2023-12-19 | Fabio Mortari Hypatia Observatory | Ritchey Chretienne 250mm f/5.3 MORAVIAN C2-7000A / R / 200.0 | 0.85 ± 2.02 | |
| HAT-P-15b (MEDIUM) 2023-02-07 | Paolo Arcangelo Matassa P:M.P.H.R. Deep Sky (K81) | Ritchey Chretien 40cm-F5.3 CCD ICX453AQ / Lum / 90.0 | -4.21 ± 3.74 | |
| HAT-P-15b (MEDIUM) 2022-11-23 | Claudio Lopresti Claudio Lopresti | Mak-Newton CCD Sbig ST10xme / I / 240.0 | -3.56 ± 6.19 | |
| HAT-P-15b (MEDIUM) 2022-11-02 | Simon Dawes William James II Observatory | Skywatcher MN190 2 ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 120.0 | 0.34 ± 3.02 | |
| HAT-P-15b (MEDIUM) 2022-01-01 | Paolo Arcangelo Matassa P:M.P.H.R. Deep Sky (K81) | Ritchey Chretien 40cm-F5.3 CCD ICX453AQ / Lum / 90.0 | -0.2 ± 4.32 | |
| HAT-P-15b (MEDIUM) 2022-01-01 | Valère Perroud Observatoire de Duines | RC 10 Moravian G2-4000 / Lum / 90.0 | -0.48 ± 2.3 | |
| HAT-P-15b (MEDIUM) 2022-01-01 | Xesco Rubia Stupa Observatory | CDK14 G4-16000-MKII / Lum / 150.0 | -1.2 ± 1.58 | |
| HAT-P-15b (MEDIUM) 2022-01-01 | Robert Roth TURMX Observatory | Planewave CDK17 QHY600M / rpr / 60.0 | -1.35 ± 1.3 | |
| HAT-P-15b (MEDIUM) 2022-01-01 | Fran Campos Puig d'Agulles Observtory | RC14" on EQ8 German mount SBIG ST-8XME / R / 120.0 | -2.5 ± 1.3 | |
| HAT-P-15b (MEDIUM) 2022-01-01 | Giorgio Baj M57 | Ritchey-Chretien Sbig STT1603 ME / R / 180.0 | -4.37 ± 1.44 | |
| HAT-P-15b (MEDIUM) 2021-10-28 | Taewoo Kim Deokheung Optical Astronomy Observatory | NYSC 1m Telescope FLI PL-16803 or PI SOPHIA-2048B / R / 120.0 | 0.53 ± 1.3 | |
| HAT-P-15b (MEDIUM) 2021-10-17 | Üllar Kivila Science Centre AHHAA | TS Optics RC 203/1624 ZWO ASI385MC / Lum / 180.0 | -1.84 ± 4.32 | |
| HAT-P-15b (MEDIUM) 2021-10-17 | Tõnis Eenmäe Tartu Observatory | Planewave CDK 12.5 Apogee Alta U42 / R / 90.0 | -2.13 ± 3.02 | |
| HAT-P-15b (MEDIUM) 2021-10-07 | Robert Roth TURMX Observatory | Planewave CDK17 QHY600M / rpr / 60.0 | 2.84 ± 3.02 | |
| HAT-P-15b (MEDIUM) 2020-12-06 | Tõnis Eenmäe Tartu Observatory | Planewave CDK 12.5 Apogee Alta U42 / R / 90.0 | 1.44 ± 1.87 | |
Space Observations |
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| Planet Observation Date |
Mission | O-C minutes |
||
| HAT-P-15b (MEDIUM) 2022-12-15 | TESS | -0.1 ± 1.18 | ||
| HAT-P-15b (MEDIUM) 2022-12-04 | TESS | 3.38 ± 1.31 | ||
ETD Observations |
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| Planet Observation Date |
Observer(s) | ETD link | O-C minutes |
|
| HAT-P-15b (MEDIUM) 2011-12-24 | Ramon Naves | 1324796416 | -0.14 ± 2.1 | |
Literature Mid-times |
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| Planet Observation Date |
Reference | O-C minutes |
||
| 2008-06-21 | Kovács et al. 2010 | 0.08 ± 0.69 | ||