HD 211415

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**HD 211415 A/B**
Observation data Epoch J2000
Constellation (pronunciation)	Grus
Right ascension	22h 18m 15s 37.2j
Declination	-53° 37' 31.9"'
Apparent magnitude (V)	5.33
Characteristics
Spectral type	G1-3 V/M V
U-B color index	0.06
B-V color index	0.59
Variable type	None
Astrometry
Radial velocity (R_v)	-13.9 km/s
Proper motion (μ)	RA: 439.88 mas/yr Dec.: -632.60 mas/yr
Parallax (π)	73.47 ± 0.70 mas
Distance	44.4 ± 0.4 ly (13.6 ± 0.1 pc)
Absolute magnitude (M_V)	4.66
Details
Mass	1.0/0.5 M_☉
Radius	0.96/0.56 R_☉
Luminosity	1.09/0.018 L_☉
Temperature	5,925(A) K
Metallicity	49-54%(A) Sun
Rotation	?
Age	3.3 × 10⁹ years
Other designations
GJ 853 A, HR 8501, CD -54°9222, HD 211415, LHS 3790, LTT 8943, GCTP 5395.00, SAO 247400, LFT 1702, HIP 110109.

HD 211415 is a binary star system in the constellation Grus. It has a relatively high proper motion and is located about 44 light years from the Sun.

These two stars have an orbit with a semi-major axis of 3.4″, which is approximately equal to 46 A.U.s. This is larger than the orbit of Pluto around our Sun, which has a semi-major axis of 39.5 A.U. This system has not been observed for a sufficient length of time to establish the remaining orbital parameters with sufficient precision.

[edit] Possibility of planets and life

HD 211415 was identified in September 2003 by astrobiologist Margaret Turnbull from the University of Arizona in Tucson as one of the most promising nearby candidates for hosting life based on her analysis of the HabCat list of stars.^[1]