2MASS J0249-0557 Overview
-
Star:
2MASS J0249-0557 A
- Stellar Radius: 0.32 Solar Radius
- Stellar Effective Temperature: 2859.00 K
-
Planet:
2MASS J0249-0557 c
- Disposition Confirmed
- Planet Radius 1.550 Jupiter Radius
-
Star:
2MASS J0249-0557 B
-
Planet:
2MASS J0249-0557 c
- Disposition Confirmed
- Planet Radius 1.550 Jupiter Radius
-
Planet:
2MASS J0249-0557 c
2MASS J0249-0557 Architecture & Discovery Information
| Name | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|
| 2MASS J0249-0557 A | ||||||
| 2MASS J0249-0557 c | --- | 17.37 R⨁ | Imaging | 2018 | Dupuy et al. 2018 | Confirmed Planet |
| 2MASS J0249-0557 B | ||||||
| 2MASS J0249-0557 c | --- | 17.37 R⨁ | Imaging | 2018 | Dupuy et al. 2018 | Confirmed Planet |
2MASS J0249-0557 c
- Effective temperature entered under equilibrium temperature. (Liu et al. 2026)
- RA
- 02h49m56.44s
- Dec
- -05d57m35.97s
- Distance
-
66.0613+0.4543-0.4482pc
- Parallax
- 15.109700±0.102628 mas
- Ecliptic Latitude
- -21.25209 deg
- Ecliptic Longitude
- 38.09147 deg
- Galactic Latitude
- -54.7665 deg
- Galactic Longitude
- 181.3869 deg
- Total Proper Motion
- 60.630596±0.186328 mas/yr
- Proper Motion (RA)
- 48.657000±0.193321 mas/yr
- Proper Motion (Dec)
- -36.174100±0.172959 mas/yr
- Photometry
- mV 18.3±0.2
- mTESS 14.0996000±0.0079613
- mJ 11.963±0.027
- mH 11.361±0.026
- mKs 11.055±0.021
- mW1 10.844±0.023
- mW2 10.597±0.020
- mW3 10.388±0.059
- mW4 8.919
- mGaia 15.689400±0.001224
- mB 18.269±0.162
- mg 18.7211000±0.0082138
- mi 14.9773000±0.0047109
- mr 17.1968000±0.0055162
- mu 21.474000±0.138038
- mz 13.7544000±0.0045211
| Source | TICv8 | Dupuy et al. 2018 |
|---|---|---|
|
Teff
(K)
|
2859.0±157.0 | --- |
|
L✶
(log10(L⦿))
|
-2.2212+0.1081-0.1442
|
-2.59±0.09 |
|
ρ✶
(g/cm3)
|
13.1812±0.2957 | --- |
|
M✶
(M⦿)
|
0.2949050±0.0203037 |
0.046+0.012-0.011
|
|
R✶
(R⦿)
|
0.3159590±0.0096245 | --- |
|
log g
(log10(cm/s2))
|
4.9084900±0.0034814 | --- |
|
Age
(Gyr)
|
--- | 0.022±0.006 |
|
Sp. T
|
--- | M6 V |
- Status
- Confirmed Planet
- Detected By
- Imaging
- Tools
- Planetary Systems
| Source | Liu et al. 2026 | Dupuy et al. 2018 |
|---|---|---|
|
Teq
(K)
|
1723 | --- |
|
Mp
(M⨁)
|
3617±245 |
3687+413-318
|
|
Mp
(MJup)
|
11.38±0.77 |
11.6+1.3-1.0
|
|
Rp
(R⨁)
|
17.4±0.3 | --- |
|
Rp
(RJup)
|
1.55±0.03 | --- |
|
a
(au)
|
--- | 1950±200 |
- RA
- ---
- Dec
- ---
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- ---
- Ecliptic Longitude
- ---
- Galactic Latitude
- ---
- Galactic Longitude
- ---
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
- mV ---
- mTESS ---
- mJ ---
- mH ---
- mKs ---
- mW1 ---
- mW2 ---
- mW3 ---
- mW4 ---
- mGaia ---
- mB ---
- mg ---
- mi ---
- mr ---
- mu ---
- mz ---
| Source | Dupuy et al. 2018 |
|---|---|
|
L✶
(log10(L⦿))
|
-2.64±0.09 |
|
Age
(Gyr)
|
0.022±0.006 |
|
M✶
(M⦿)
|
0.042+0.013-0.011
|
|
Sp. T
|
M6 V |
2MASS J0249-0557 A Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
2MASS J0249-0557 B Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
-
Chemistry and Isotope Ratios of Substellar Atmospheres in the β Pictoris Young Moving Group and Vicinity
Liu et al. 2026 Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview -
The Hawaii Infrared Parallax Program. III. 2MASS J0249-0557 c: A Wide Planetary-mass Companion to a Low-mass Binary in the β Pic Moving Group
Dupuy et al. 2018 Reference Overview
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- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
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