P Eridani

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**p Eridani A/B**
Observation data Epoch J2000
Constellation	Eridanus
Right ascension	01^h 39^m 47.2^s
Declination	-56° 11′ 44″
Apparent magnitude (V)	5.80/5.90
Spectral Characteristics
Spectral type	K2 V/K3 V
U-B color index	0.56/0.61
B-V color index	0.85/0.88
Variable type	None
Astrometry
Radial velocity (R_v)	+19.5 km/s
Proper motion (μ)	RA: 286.10 mas/yr Dec.: 16.66 mas/yr
Parallax (π)	123.90 ± 1.38 mas
Distance	26.3 ± 0.3 ly (8.07 ± 0.09 pc)
Absolute magnitude (M_V)	6.25/6.35
Physical Characteristics
Mass	0.88/0.86 M_☉
Radius	0.79/0.6 R_☉
Luminosity	0.28/0.25 L_☉
Temperature	? K
Metallicity	?
Rotation	?
Age	? years
Visual binary orbit
Companion	p Eridani B
Period (P)	483.66 years
Semimajor axis (a)	7.817"
Eccentricity (e)	0.5344
Inclination (i)	142.824°
Node (Ω)	13.116°
Periastron epoch (T)	1813.494
Other designations
GJ 66, HR 487, CD -56°328, HD 10361/10360, LTT 902, GCTP 352.00, SAO 232490, CP(D)-56 329, WDS 01398-5612, Dunlop 5, HIP 7751.

p Eridani is a multiple star system in the constellation Eridani.

It one of the nearest star in the constellation and it lies about 26.6 light years from the Sun, and consists of two visible components that orbit each other in a wide orbit with a relatively high eccentricity. The closest that these components approach each other is 29.7 astronomical units (or AUs) and the maximum separation is 97.7 AU. The fainter of the two stars also appears to have a spectroscopic companion.