The Empire of 18 Scorpii

[jude_rook]

18 Scorpii is a G1V star 46 light years away.  It may have a binary companion and is also known as Gliese 616.

As the pickings are a little slim within 10 light years, here are the stars within 15 light years of 18 Scorpii:

Gliese 606: 3.11498 light-years, class M0V
Luyten Palomar 684-17 (no Gliese number I could find): 8.9 light-years, class M4.5 or 5V
Psi Serpentis/Gliese 596.1: 11.1 light-years, class G5V
Wolf 635/Gliese 653: 13.8 light-years, class K5V
Gliese 668.1: 14.1 light-years, class G9V
Gliese 641: 14.5 light-years, class G8V
Lambda Serpentis/Gliese 598: 14.6 light-years, class G0V
12 Ophiuchi/Gliese 631: 14.8 light-years, class K0V

And here’s the chart:

	606	LP	596.1	653	668.1	641	598	631
616	3.1	8.9	11.1	13.8	14.1	14.5	14.6	14.8
606		8.8	9.6	15.3	16.3	16.8	13.6	15.3
LP			17.5	22.3	22.1	13.5	19.2	23.1
596.1				19.9	21.1	17.2	10.2	18.6
653					4.1	20.6	15.1	5.5
668.1						18.4	17.8	9.5
641							22.3	23.6
598								11.6