Back to Stellar Hosts
Stellar HostProfile

HD 40307

K2.5 V • 12.94 pc

Records

16

literature rows

Planets

5

system count

References

17

distinct source labels

TIC: TIC 374859347HD: HD 40307HIP: HIP 27887

Approximate color

from effective temperature

Canonical Summary

Adopted host values from all rows

Numeric fields use the median of non-null measurements. Disagreement stays visible through ranges, counts, and provenance.

Temperature

4908 K

4771 to 4977

10 values • 8 distinct

Mass

0.77 Msun

0.70 to 0.79

7 values • 5 distinct

Radius

0.72 Rsun

0.65 to 0.72

5 values • 4 distinct

Age

2.80 Gyr

2.60 to 4.50

4 values • 3 distinct

Luminosity

-0.61 log(Lsun)

-0.64 to -0.57

6 values • 5 distinct

Distance

12.94 pc

single adopted value

16 values • 1 distinct

Spectral Type

K2.5 V

Multiple classifications reported

K2.5 V (2), K3 V (2), G5 (1), K3V (1)

Planets

5

Stable across source rows

5

System Layout

Known planets

5 planets linked to this host

HD 40307 f

Radial Velocity

Discovery

2013

Period

51.76 days

Radius

Mass

5.20 M⊕

Eq. Temp

HD 40307 b

Radial Velocity

Discovery

2009

Period

4.31 days

Radius

Mass

4 M⊕

Eq. Temp

910 K

HD 40307 g

Radial Velocity

Discovery

2013

Period

197.8 days

Radius

Mass

7.10 M⊕

Eq. Temp

HD 40307 c

Radial Velocity

Discovery

2009

Period

9.62 days

Radius

Mass

6.60 M⊕

Eq. Temp

696 K

HD 40307 d

Radial Velocity

Discovery

2009

Period

20.43 days

Radius

Mass

9.50 M⊕

Eq. Temp

541 K

Provenance

Underlying measurements and references

Evidence Summary

Rows

16

Stellar refs

16

System refs

1

Distancestable

16 values • 1 distinct

Parallaxstable

16 values • 1 distinct

Temperaturedisputed

10 values • 8 distinct

Massdisputed

7 values • 5 distinct

Radiusdisputed

5 values • 4 distinct

Agedisputed

4 values • 3 distinct

Luminositydisputed

6 values • 5 distinct

Surface Gravitydisputed

10 values • 7 distinct

Metallicitydisputed

9 values • 7 distinct

Spectral Typedisputed

6 values • 4 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
49770.77-0.6412.94Sousa et al. 2008TICv8
K2.5 V12.94Gray et al. 2006TICv8
0.740.722.6012.94Takeda et al. 2007TICv8
49560.774.50-0.64K2.5 V12.94Tuomi et al. 2013TICv8
G512.94Cannon & Pickering 1918TICv8
492312.94Maldonado et al. 2015TICv8
477112.94Tsantaki et al. 2014TICv8
K3 V12.94Michigan Catalog, Vol. 1TICv8
12.94Valenti & Fischer 2005TICv8
12.94Nordstrom et al. 2004TICv8
48270.740.722.60-0.57K3V12.94Turnbull 2015TICv8
48930.71-0.5912.94Gaia DR2TICv8
49770.77K3 V12.94Díaz et al. 2016TICv8
49560.700.653-0.6412.94Ghezzi et al. 2010TICv8
4867.40.790.72-0.5912.94TICv8TICv8
480512.94Santos et al. 2004TICv8