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Stellar HostProfile

55 Cnc

G8 V • 12.59 pc

Records

29

literature rows

Planets

7

system count

References

30

distinct source labels

HD: HD 75732HIP: HIP 43587TIC: TIC 332064670

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

5250 K

5172 to 5334

15 values • 13 distinct

Mass

0.95 Msun

0.85 to 1.01

17 values • 10 distinct

Radius

0.94 Rsun

0.93 to 0.98

14 values • 7 distinct

Age

8.37 Gyr

5 to 10.20

6 values • 6 distinct

Luminosity

-0.20 log(Lsun)

-0.23 to -0.18

4 values • 4 distinct

Distance

12.59 pc

single adopted value

29 values • 1 distinct

Spectral Type

G8 V

Multiple classifications reported

G8 V (4), K0 IV-V (3), G8V (1), K0 (1)

Planets

7

Stable across source rows

7

System Layout

Known planets

5 planets linked to this host

55 Cnc b

Radial Velocity

Discovery

1996

Period

14.65 days

Radius

Mass

267.0 M⊕

Eq. Temp

55 Cnc c

Radial Velocity

Discovery

2004

Period

44.38 days

Radius

Mass

54.35 M⊕

Eq. Temp

55 Cnc f

Radial Velocity

Discovery

2007

Period

260.6 days

Radius

Mass

48.50 M⊕

Eq. Temp

55 Cnc d

Radial Velocity

Discovery

2002

Period

5574.2 days

Radius

Mass

991.6 M⊕

Eq. Temp

55 Cnc e

Radial Velocity

Discovery

2004

Period

0.74 days

Radius

Mass

7.95 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

29

Stellar refs

29

System refs

1

Distancestable

29 values • 1 distinct

Parallaxstable

29 values • 1 distinct

Temperaturedisputed

15 values • 13 distinct

Massdisputed

17 values • 10 distinct

Radiusdisputed

14 values • 7 distinct

Agedisputed

6 values • 6 distinct

Luminositydisputed

4 values • 4 distinct

Surface Gravitydisputed

14 values • 10 distinct

Metallicitydisputed

13 values • 8 distinct

Spectral Typedisputed

9 values • 4 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
52340.910.9412.59Demory et al. 2011TICv8
K0 IV-V12.59Gray et al. 2003TICv8
52000.855G8 V12.59Butler et al. 1997TICv8
51981.010.9810G8 V12.59Moutou et al. 2025TICv8
0.960.937.2412.59Takeda et al. 2007TICv8
52350.960.939.50-0.18G8V12.59Turnbull 2015TICv8
12.59Naef et al. 2004TICv8
5317.90.970.9612.59Rosenthal et al. 2021TICv8
51720.910.9412.59Bourrier et al. 2018TICv8
1.010.9812.59Crida et al. 2018TICv8
K0 IV-V12.59Salz et al. 2015TICv8
51720.870.9512.59Dai et al. 2019TICv8
12.59Nidever et al. 2002TICv8
12.59Bourrier & Hébrard 2014TICv8
52500.900.96-0.2012.59TICv8TICv8
0.960.94G8 V12.59Winn et al. 2011TICv8
12.59Valenti & Fischer 2005TICv8
51960.910.9410.20-0.23K0 IV-V12.59von Braun et al. 2011TICv8
52720.910.9412.59Zhao et al. 2023TICv8
53070.8812.59Santos et al. 2003TICv8
533412.59Maldonado et al. 2015TICv8
52500.9612.59ExoFOPTICv8
0.9512.59Baluev 2015TICv8
0.9512.59McArthur et al. 2004TICv8
K012.59Cannon & Pickering 1918TICv8
12.59Wright et al. 2004TICv8
529212.59Harada et al. 2025TICv8
0.955.50G8 V12.59Marcy et al. 2002TICv8
53060.95-0.1912.59Gaia DR2TICv8