Planet HETE J1900.1-2455 b

Detailed information about planet HETE J1900.1-2455 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HETE J1900.1-2455 b

Planet Status

Confirmed

Discovered in

2006

Update

2024-06-12

Mass

45.0 (\pm 0.027)

M_J 1 publication

Discovery of the millisecond X-ray pulsar HETE J1900.1-2455

Mass*sin(i)

—

Semi-Major Axis

0.00609 (\begin{matrix} + 4.14e-05 \\ - 3.45e-05 \end{matrix})

Orbital Period

0.144538715 day 1 publication

Discovery of the millisecond X-ray pulsar HETE J1900.1-2455

Eccentricity

—

ω

—

T_peri

—

Radius

—

Inclination

90.0 deg

Detection Method

Timing, Kinematic

Mass Meas. Method

—

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

For a neutron star mass of 1.4 MSol, companion mass is not lower than 16.7 x Jupiter. For a neutron star mass of 2.2 MSol, companion mass is lower than 0.07 MSol (<73 x Jupiter), assuming i = 90°. However King & Wijnands (2006) suggest the possibility that the companion was born as an object of a small mass, such as a brown dwarf or a planet, though the detailed path of evolution of the system is not clear.

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