HIP 90988 Overview

HIP 90988 3.98 R_⦿ 4833.00 K

HIP 90988 b

Overview Notes 1 Parameters Nearby Data Bibliography 4 Legend Expand All

HIP 90988 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HIP 90988
HIP 90988 b	455.74 d	> 668.08 M_⨁	Radial Velocity	2021	Jones et al. 2021	Confirmed Planet

Exoplanet Archive Notes (1)

HIP 90988 b

Planet flagged as controversial. (Jenkins et al. 2025)

HIP 90988 Stellar Parameters (4 Solutions)

RA: 18h33m33.43s

Dec: -50d12m42.09s

Distance: 94.0349+0.3884-0.3853
pc

Parallax: 10.6057000±0.0434184 mas

Ecliptic Latitude: -26.94735 deg

Ecliptic Longitude: 276.00833 deg

Galactic Latitude: -17.81794 deg

Galactic Longitude: 345.01064 deg

Total Proper Motion: 34.0355833±0.0765169 mas/yr

Proper Motion (RA): 25.6205000±0.0776064 mas/yr

Proper Motion (Dec): -22.4056000±0.0750684 mas/yr

Photometry: m_V
7.75±0.03; m_TESS
6.8641±0.0060; m_J
5.995±0.018; m_H
5.531±0.031; m_Ks
5.383±0.020; m_W1
5.361±0.140; m_W2
5.234±0.056; m_W3
5.347±0.015; m_W4
5.298±0.034; m_Gaia
7.466480±0.000363; m_B
8.814±0.020

Tools: Planetary Systems; ExoFOP Target Overview Page; IRSA Finding Chart; Stellar Hosts

Source	Jenkins et al. 2025	Feng et al. 2022	Jones et al. 2021	TICv8
T_eff (K)	4884±58	---	4883±57	4833.0±122.0
R_✶ (R_⦿)	3.94±0.04	---	3.94±0.04	3.98485
L_✶ (log₁₀(L_⦿))	0.89±0.01	---	0.890+0.008-0.009	---
Metallicity (dex)	0.17±0.06 [Fe/H]	---	0.17±0.06 [Fe/H]	---
v sin i (km/s)	3.47±0.60	---	3.5±0.6	---
Age (Gyr)	4.55±1.12	---	4.55+1.12-0.80	---
M_✶ (M_⦿)	1.30±0.08	1.613±0.093	1.30±0.08	---
log g (log₁₀(cm/s²))	3.32±0.11	---	3.32±0.11	---
Sp. T	K1 III	---	K1 III	---

HIP 90988 b Planetary Parameters (3 Solutions)

Status: Confirmed Planet; Controversial

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Feng et al. 2022	Jenkins et al. 2025	Jones et al. 2021
T_p (days)	2454979.213+5.965-6.352 (BJD)	---	2455309.2±30.2 (BJD)
ω (deg)	264.199+3.991-2.940	0	161.6±23.9
M_p sin i (M_⨁)	668.1+25.1-27.0	543+38-35	623±35
M_p sin i (M_Jup)	2.102+0.079-0.085	1.71+0.12-0.11	1.96±0.11
e	0.0810+0.0420-0.0430	0	0.080±0.050
P (days)	455.73816+2.11413-1.88939	452.45+2.17-1.97	453.9±2.0
K (m/s)	40.452+0.353-0.363	38.77+2.04-2.15	43.6±2.1
a (au)	1.360+0.026-0.027	---	1.26±0.02

Nearby Data (within 30 arcseconds) Browse Nearby Data

Known Objects: 1 Confirmed Planets; 6 2MASS Point Source Catalog

Data Files: 1 Associated Literature Data

Bibliography (4 References)

Sub-Jupiter gas giants orbiting giant stars uncovered using a Bayesian framework
Jenkins et al. 2025 Reference Overview
3D Selection of 167 Substellar Companions to Nearby Stars
Feng et al. 2022 Reference Overview
Four Jovian planets around low-luminosity giant stars observed by the EXPRESS and PPPS
Jones et al. 2021 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview

Legend

System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive

Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2

External Link
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Debug Info

https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/39/HIP_90988.json

HIP 90988

Catalog Parameters

18h33m33.43s

Dec

dec

-50d12m42.09s

elat

-26.94735

elon

276.00833

glat

-17.81794

glon

345.01064

m_V

sy_vmag

7.75±0.03

m_TESS

sy_tmag

6.8641±0.0060

m_J

sy_jmag

5.995±0.018

m_H

sy_hmag

5.531±0.031

m_Ks

sy_kmag

5.383±0.020

sy_kepmag

no_data

m_W1

sy_w1mag

5.361±0.140

m_W2

sy_w2mag

5.234±0.056

m_W3

sy_w3mag

5.347±0.015

m_W4

sy_w4mag

5.298±0.034

sy_icmag

no_data

m_Gaia

sy_gaiamag

7.466480±0.000363

m_B

sy_bmag

8.814±0.020

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

sy_pm

34.0355833±0.0765169

μ_δ

sy_pmdec

-22.4056000±0.0750684

μ_α

sy_pmra

25.6205000±0.0776064

sy_plx

10.6057000±0.0434184

Distance

sy_dist

94.0349+0.3884-0.3853

Set Parameters

R_✶

st_rad

3.98485

T_eff

st_teff

4833.0±122.0