HIP 56998 Overview
HIP 56998
0.63
R⦿
4633.87
K
HD 101581 b
0.085
RJup
HD 101581 c
0.088
RJup
?
TOI-6276.03
0.092
RJup
- Architecture
- HIP 56998
- HIP 56998
- Other Data
- Bibliography 18
- Nearby Data 6
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| HIP 56998 | HD 101581 b | Transit | 2025 | Kunimoto et al. 2025 | Confirmed Planet |
| HIP 56998 | HD 101581 c | Transit | 2025 | Kunimoto et al. 2025 | Confirmed Planet |
| HIP 56998 | TOI-6276.03 | Transit | 2024 | TESS Project | Candidate Planet |
- RA
- 11h41m01.51s
- Dec
- -44d24m14.93s
- Distance
- 12.7781±0.0114 pc
- Parallax
- 78.2299000±0.0693702 mas
- Ecliptic Latitude
- -41.71896 deg
- Ecliptic Longitude
- 197.46973 deg
- Galactic Latitude
- 16.67814 deg
- Galactic Longitude
- 289.89696 deg
- Total Proper Motion
- 703.291327±0.222167 mas/yr
- Proper Motion (RA)
- -660.418000±0.232709 mas/yr
- Proper Motion (Dec)
- 241.799000±0.116563 mas/yr
- Photometry
-
mV7.77±0.03
-
mTESS6.7213±0.0060
-
mJ5.792±0.021
-
mH5.273±0.075
-
mKs5.101±0.016
-
mIc---
-
mGaia7.383990±0.000281
-
mB8.865±0.020
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.51±0.12 dex
-
[C/H] -0.40±0.09 dex
-
[Na/H] -0.32±0.06 dex
-
[Mg/H] -0.41±0.04 dex
-
[Al/H] -0.31±0.06 dex
-
[Si/H] -0.43±0.10 dex
-
[Ca/H] -0.37±0.20 dex
-
[BaII/H] -0.43±0.15 dex
| Source | Kunimoto et al. 2025 | TICv8 | Turnbull 2015 | Sousa et al. 2008 | Takeda et al. 2007 | Gray et al. 2006 | Nordstrom et al. 2004 | Michigan Catalog, Vol. 2 | Cannon & Pickering 1918 | ExoFOP-TESS TOI | ExoFOP-TESS TOI | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
4675±53 |
4633.870+113.619-172.957
|
4650 | 4738±57 | --- | --- | --- | --- | --- | 4633.870±143.288 | 4633.870±143.288 | 4633.870±143.288 | ||
|
L✶
(log10(L⦿))
|
--- |
-0.7818635+0.0242926-0.0167148
|
-0.796 +0.211-0.426
|
-0.845+0.029-0.031
|
--- | --- | --- | --- | --- | --- | --- | --- | ||
|
Metallicity
(dex)
|
-0.343±0.059 [Fe/H] | -0.505455±0.027136 [M/H] | --- | -0.52±0.03 [Fe/H] | --- | --- | --- | --- | --- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
--- |
4.158128+1.482179-1.170208
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ||
|
M✶
(M⦿)
|
0.653±0.028 |
0.7400000+0.0991818-0.0744500
|
0.67 | 0.682 |
0.667+0.010-0.014
|
--- | --- | --- | --- | --- | --- | --- | ||
|
R✶
(R⦿)
|
0.630±0.027 |
0.6307150+0.0647121-0.0425844
|
0.65 | --- | 0.65±0.02 | --- | --- | --- | --- | 0.630715012550354±0.053648200000000 | 0.630715012550354±0.053648200000000 | 0.630715012550354±0.053648200000000 | ||
|
log g
(log10(cm/s2))
|
4.654±0.057 |
4.707630+0.107060-0.103692
|
4.66 | 4.46±0.15 | 4.66±0.02 | --- | --- | --- | --- | 4.707630±0.105376 | 4.707630±0.105376 | 4.707630±0.105376 | ||
|
v sin i
(km/s)
|
2.47±0.30 | --- | --- | --- | --- | --- | 2 | --- | --- | --- | --- | --- | ||
|
Age
(Gyr)
|
6.880±4.270 | --- | --- | --- | <0.64 | --- | --- | --- | --- | --- | --- | --- | ||
|
Sp. T
|
--- | --- | K4/5V | --- | --- | K4.5 V (k) | --- | K4/5 V | K5 | --- | --- | --- | ||
|
γ
(km/s)
|
--- | --- | --- | --- | --- | --- | 12.9±0.1 | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Kunimoto et al. 2025 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|
|
Teq
(K)
|
834±23 | 740.980710535205 | ||
|
b
|
0.616+0.036-0.079
|
--- | ||
|
S
(S⨁)
|
80+9-8
|
71.244051912514 | ||
|
i
(deg)
|
87.78+0.27-0.20
|
--- | ||
|
P
(days)
|
4.46569+0.00029-0.00032
|
4.46534709871303±0.00070410635000 | ||
|
Rp
(R⨁)
|
0.9560+0.0610-0.0630
|
0.885684603080662±0.468454630000000 | ||
|
Rp
(RJup)
|
0.08529+0.00544-0.00562
|
0.0790156238810066±0.0417927947721419 | ||
|
Rp/R✶
|
0.0139±0.0006 | --- | ||
|
a
(au)
|
0.0460±0.0007 | --- | ||
|
T14
(hours)
|
1.77+0.13-0.12
|
1.56914862167412±0.11201358000000 | ||
|
TC
(days)
|
2460014.8496+0.0028-0.0023
|
2460014.84682200±0.00213723 | ||
|
δ
(%)
|
--- | 0.0186760672664854±0.0025131464000000 |
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Kunimoto et al. 2025 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|
|
Teq
(K)
|
747+21-20
|
663.927085206015 | ||
|
b
|
0.713+0.032-0.057
|
--- | ||
|
S
(S⨁)
|
52+6-5
|
45.9200705607039 | ||
|
i
(deg)
|
87.93+0.19-0.15
|
--- | ||
|
P
(days)
|
6.20401+0.00054-0.00044
|
6.20747203169486±0.00098194520000 | ||
|
Rp
(R⨁)
|
0.990±0.070 | 0.955851376202058±0.836262350000000 | ||
|
Rp
(RJup)
|
0.0883±0.0062 | 0.0852754948718984±0.0746064581947224 | ||
|
Rp/R✶
|
0.0144+0.0007-0.0008
|
--- | ||
|
a
(au)
|
0.0573±0.0009 | --- | ||
|
T14
(hours)
|
1.76+0.15-0.12
|
1.55874039995771±0.15797926000000 | ||
|
TC
(days)
|
2460017.1140+0.0023-0.0024
|
2460017.10805600±0.00167194 | ||
|
δ
(%)
|
--- | 0.0230904139734345±0.0028900988000000 |
- Status
- Candidate Planet
- Detected By
- Transit
| Source | ExoFOP-TESS TOI |
|---|---|
|
Teq
(K)
|
613.410401833458 |
|
S
(S⨁)
|
33.4599699472136 |
|
P
(days)
|
7.87086605309432±0.00076534210000 |
|
Rp
(R⨁)
|
1.031487413588±0.424198100000 |
|
Rp
(RJup)
|
0.09202330177872±0.03784448482457 |
|
δ
(%)
|
0.0190794735305962±0.0020730343000000 |
|
T14
(hours)
|
1.63558979885999±0.44432890000000 |
|
TC
(days)
|
2460018.57244800±0.00291797 |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 109 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 2 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 4 KELT Time Series
- 1 SuperWASP Time Series
- 2 Associated Literature Data
-
Two Earth-size Planets and an Earth-size Candidate Transiting the nearby Star HD 101581
Kunimoto et al. 2025 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 | Reference Overview -
Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
Sousa et al. 2008 | Reference Overview -
Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog
Takeda et al. 2007 | Reference Overview -
Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
Gray et al. 2006 | Reference Overview -
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages,metallicities and kinematix properties of ~14 000 F and G dwarfs
Nordstrom et al. 2004 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 | Reference Overview -
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
BVRI photometry of the Gliese Catalogue stars
Bessell 1990 | Reference Overview -
VRI photometry of nearby stars.
Cousins 1980a | Reference Overview -
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 2
Michigan Catalog, Vol. 2 | Reference Overview -
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 | Reference Overview -
TESS Object of Interest List
TESS Project
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
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