This page summarises the information held within TEPCat for the transiting planetary system HIP 41378d. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016ApJ...827L..10V | |
| Date of discovery paper | 2016 / 6 / 29 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 08 26 27.85 | h m s |
| Declination | +10 04 49.4 | d m s |
| Right ascension (decimal) | 126.61604 | degrees |
| Declination (decimal) | 10.08039 | degrees |
| V-band apparent magnitude | 8.93 | mag |
| K-band apparent magnitude | 7.72 | mag |
| Transit duration | 0.530 ( 12.72 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2457166.261 ± 0.006 | HJD or BJD |
| Orbital period | 278.3618 ± 0.0003 | days |
| Reference for orbital ephemeris | 2026A+A...710A.275G |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6290 ± 77 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.05 ± 0.10 | dex |
| Stellar mass | 1.22 +0.03 −0.02 | Msun |
| Stellar radius | 1.300 ± 0.009 | Rsun |
| Stellar logarithmic surface gravity | 4.298 ± 0.004 | c.g.s. |
| Stellar mean density | 0.557 ± 0.006 ( 0.7859 ± 0.0085 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.063 +0.027 −0.063 | |
| Orbital semimajor axis | 0.22 +0.03 −0.06 | AU |
| Planetary mass | 0.021 +0.008 −0.010 ( 6.7 +2.5 −3.2 ) | Mjup Mearth |
| Planetary radius | 0.326 ± 0.026 ( 3.65 ± 0.29 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.56 ± 0.25 ( 0.74 ± 0.33 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 294 +3 −1 | K |
| Reference of detailed study | 2026A+A...710A.275G |
| Reference | λ (degrees) |
|---|---|
| Grouffal et al. (2022) | 57 + 26 - 18 |
Page generated on 2026/07/02 John Southworth (Keele University, UK)