Planet TMR-1 (AB)b

Detailed information about planet TMR-1 (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

TMR-1 (AB)b

Planet Status

Candidate

Discovered in

1998

Publication Status

Published in a refereed paper

Update

2025-09-05

Mass

5.0 (\begin{matrix} + 0.0 \\ - 3.0 \end{matrix})

M_J 2 publications

Large-amplitude photometric variability of the candidate protoplanet TMR-1C
A candidate protoplanet in the Taurus star-forming region

Mass*sin(i)

—

Semi-Major Axis

1400.0 (\begin{matrix} + 0.0 \\ - 400.0 \end{matrix})

AU 2 publications

Large-amplitude photometric variability of the candidate protoplanet TMR-1C
A candidate protoplanet in the Taurus star-forming region

Orbital Period

—

Eccentricity

—

Angular distance

10.0

arcsec

ω

—

T_peri

—

Radius

2.0

R_J 1 publication

The spectrum of TMR-1C is consistent with a background star

Inclination

—

Detection Method

Imaging

Mass Meas. Method

Spectrum

Radius Meas. Method

Theoretical

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

2700.0 K 1 publication

The spectrum of TMR-1C is consistent with a background star

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

IRAS 04361+2547 (AB)b, TMR-1 C

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

One of the first exoplanet candidates discovered through imaging (Terebey et al.1998). Subsequently deemed by several authors as an unrelated background source, including the discoverers themselves (Terebey et al. 2000), Riaz & Martín (2011) argue against this interpretation favoring the young exoplanet hypothesis again. Spectral type between M4.5 and M7.

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Star

Name

TMR-1 (AB)

Distance

140.0 pc

Spectral type

G+G

Apparent magnitude V

—

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.0 M_Sun 1 publication

Large-amplitude photometric variability of the candidate protoplanet TMR-1C

Age

0.0003 Gyr 1 publication

Large-amplitude photometric variability of the candidate protoplanet TMR-1C

Effective temperature

5600.0 (\pm 40.0)

K 1 publication

The spectrum of TMR-1C is consistent with a background star

Radius

1.5 R_Sun

Metallicity [Fe/H]

—

Detected Disc

IR Excess

Magnetic Field

—

RA₂₀₀₀

04:39:13.9

Dec₂₀₀₀

+25:53:20.9

Alternate Names

IRAS 04361+2547, TER 1

Young binary composed of nearly twin 0.5 M_Sol protostars separated by 3 arcseconds (42 AUs at 140 pc), also known as "Taurus Molecular Ring" (TMR). Terebey et al. (1998) estimate a bolometric luminosity of ∼3.8 L_Sol for the source, here assumed to be the total luminosity.

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