Planet GJ 1245 Ab

Detailed information about planet GJ 1245 Ab and its parameters.

Planet

Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Spectral type M8V. [Fe/H] = -0.08. Dieterich et al. (2021) estimate a mass about 81 ± 10 MJup but subsequent paper of Salama et al. (2021) provides a narrower mass range (13-54 MJup) although labelling component "C" as "B" and vice versa.

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Star

Name
GJ 1245 A
Distance
Spectral type
M5.5Ve
Apparent magnitude V
13.126
Apparent magnitude I
Apparent magnitude J
Apparent magnitude H
Apparent magnitude K
Mass
Age
Effective temperature
Radius
Metallicity [Fe/H]
-0.07
Detected Disc
Magnetic Field
RA2000
19:53:54.5
Dec2000
+44:24:51.3
Alternate Names
*V1581 Cyg, G 208-44, KIC 8451868, LHS 3494

GJ 1245 is a triple system made of two low-mass M dwarfs (aA-B = 32 AUs) and an inner unseen object (GJ 1245 C or Ab, spT M8V) straddling or below the hydrogen-deuterium burning limit. Salama et al. (2021) refine the distance of GJ 1245 B from A as 27.38 ± 0.11 AUs.

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