WISPIT 2 Overview
-
Star:
WISPIT 2
- Stellar Radius: 1.30 Solar Radius
- Stellar Effective Temperature: 4559.00 K
-
Planet:
WISPIT 2 b
- Disposition Confirmed
-
Planet:
WISPIT 2 c
- Disposition Confirmed
- Planet Radius 1.600 Jupiter Radius
WISPIT 2 Architecture & Discovery Information
| Name | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|
| WISPIT 2 | ||||||
| WISPIT 2 b | 57 au | 1541.47 M⨁ | Imaging | 2025 | van Capelleveen et al. 2025 | Confirmed Planet |
| WISPIT 2 c | 14 au | 17.93 R⨁ | Imaging | 2026 | Lawlor et al. 2026 | Confirmed Planet |
WISPIT 2 b
- Planet also independently announced in this ref. (Close et al. 2025)
- Effective temperature entered under equilibrium temperature. (Lawlor et al. 2026)
- Effective temperature, planet radius, and planet mass value/uncertainties estimated from range given in ref. (Lawlor et al. 2026)
- RA
- 19h23m17.04s
- Dec
- -07d40m55.50s
- Distance
-
134.907+2.370-2.291pc
- Parallax
- 7.387680±0.127007 mas
- Ecliptic Latitude
- 14.23017 deg
- Ecliptic Longitude
- 291.30591 deg
- Galactic Latitude
- -10.55145 deg
- Galactic Longitude
- 29.64424 deg
- Total Proper Motion
- 27.571513±0.222856 mas/yr
- Proper Motion (RA)
- 6.786670±0.277041 mas/yr
- Proper Motion (Dec)
- -26.723200±0.218901 mas/yr
- Photometry
- mV 11.598±0.023
- mTESS 10.4615±0.0118
- mJ 9.310±0.044
- mH 8.591±0.078
- mKs 8.577±0.021
- mW1 8.479±0.031
- mW2 8.454001±0.027000
- mW3 8.056±0.028
- mW4 3.317±0.027
- mGaia 11.158600±0.003923
- mB 12.637±0.260
| Source | Lawlor et al. 2026 | van Capelleveen et al. 2025 | TICv8 |
|---|---|---|---|
|
Teff
(K)
|
4530 | 4400±50 |
4559.000+129.563-156.839
|
|
L✶
(log10(L⦿))
|
-0.17 |
-0.156+0.013-0.013
|
-0.1852285+0.0386083-0.0302554
|
|
ρ✶
(g/cm3)
|
--- | --- |
0.4666567+0.1673943-0.1151576
|
|
M✶
(M⦿)
|
--- |
1.08+0.06-0.17
|
0.7190000+0.0792644-0.0983991
|
|
R✶
(R⦿)
|
1.3 | 1.418±0.004 |
1.2950900+0.1228590-0.0852764
|
|
log g
(log10(cm/s2))
|
4.1 | 4.00±0.25 |
4.070200+0.091406-0.115750
|
|
Age
(Gyr)
|
--- |
0.0051+0.0024-0.0013
|
--- |
|
Prot
(days)
|
--- | 4.7004 | --- |
- Status
- Confirmed Planet
- Detected By
- Imaging
- Tools
- Planetary Systems
| Source | van Capelleveen et al. 2025 | Close et al. 2025 |
|---|---|---|
|
Mp
(M⨁)
|
1541+299-184
|
1557 |
|
Mp
(MJup)
|
4.85+0.94-0.58
|
4.9 |
|
Rp
(R⨁)
|
--- | 18 |
|
Rp
(RJup)
|
--- | 1.6 |
|
a
(au)
|
57 | 54 |
- Status
- Confirmed Planet
- Detected By
- Imaging
- Tools
- Planetary Systems
| Source | Lawlor et al. 2026 |
|---|---|
|
Teq
(K)
|
2050±550 |
|
Mp
(M⨁)
|
3178±636 |
|
Mp
(MJup)
|
10±2 |
|
Rp
(R⨁)
|
18+7-8
|
|
Rp
(RJup)
|
1.6+0.6-0.7
|
|
a
(au)
|
14 |
Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 2 Confirmed Planets
- 8 2MASS Point Source Catalog
- Data Files
- 4 KELT Time Series
- 2 Associated Literature Data
-
Direct Spectroscopic Confirmation of the Young Embedded Protoplanet WISPIT 2c
Lawlor et al. 2026 Reference Overview -
Wide Separation Planets in Time (WISPIT): Discovery of a Gap Hα Protoplanet WISPIT 2b with MagAO-X
Close et al. 2025 Reference Overview -
WIde Separation Planets In Time (WISPIT): A Gap-clearing Planet in a Multi-ringed Disk around the Young Solar-type Star WISPIT 2
van Capelleveen et al. 2025 Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
- External Link
- Search
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