Planet DQ Her (AB) c

Detailed information about planet DQ Her (AB) c and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

DQ Her (AB) c

Planet Status

Candidate

Discovered in

2009

Mass

20.0 M_J 1 publication

Plausible explanations for the variations of orbital period in the old nova DQ Herculis

Mass*sin(i)

—

Semi-Major Axis

6.49 AU 1 publication

Plausible explanations for the variations of orbital period in the old nova DQ Herculis

Orbital Period

6460.0 day 1 publication

Plausible explanations for the variations of orbital period in the old nova DQ Herculis

Eccentricity

—

ω

—

T_peri

—

Radius

—

Inclination

86.5 deg 1 publication

Plausible explanations for the variations of orbital period in the old nova DQ Herculis

Update

2021-10-05

Detection Method

Other

Mass Detection Method

—

Radius Detection 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

09 Feb 2011: The candidate DQ Her(ab)c is suggested by Dai & Qian (2009) as a plausible explanation of the periodic variations of the eclipses of DQ Her(ab). The mass value is given by assuming that the 3rd body orbit is coplanar with the DQ Her(ab) orbit inclined by 86.5 deg.

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Star

Name

DQ Her (AB)

Distance

200.0 pc

Spectral type

Nova

Apparent magnitude V

15.16

Mass

1.0 M_Sun 1 publication

Plausible explanations for the variations of orbital period in the old nova DQ Herculis

Age

—

Effective temperature

—

Radius

—

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

18:07:30.0

Dec₂₀₀₀

+45:51:33.0

Alternate Names

—

09 Feb 2011: DQ Her (ab) is an eclipsing binary with masses 0.4 and 0.8 m_Sun and period 4h39m. (Dai & Qian 2009). Following Beuermann et al. (2010) for the designation of the binary NN ser, we designated the two components by a and b and the binary by (ab).

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