18300+0113 DCH 100 Ba,Bb

Coord 2000	18300+0113		Discov num	DCH 100		Comp	Ba,Bb		Coord arcsec 2000	18 29 57.75 +01 12 57.0
Date first	2005		Date last	2005		Obs	1
Pa first	109		Pa last	109.2		P.A. Now (θ)	109.2°
Sep first	2.5		Sep last	2.48		Sep. Now (ρ)	2.48"
Mag pri	10.40		Mag sec	17.70		delta mag (ΔM)	7.3		Spectral class
Pri motion ra			Sec motion ra
Pri motion dec			Sec motion dec
Notes	K (K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			18 29 58 +01 12 52	DCH 100 Aa,Ab	2005	1	227	0.2	11.80	10.60	1.20
Show			18 29 58 +01 12 52	HCH 9 AB	2005	4	354	5.2	9.80	10.40	0.60
Show			18 29 58 +01 12 57	DCH 100 Ba,Bb	2005	1	109	2.5	10.40	17.70	7.30		<===
Show			18 29 58 +01 12 52	DCH 98 AC	2005	2	12	4.4	9.80	8.50	1.30
Show			18 29 58 +01 13 00	DCH 98 Ca,Cb	2005	1	92	0.1	8.70	10.30	1.60

Sextuple system
3 estimated visually detectable stars in this system

Constellation

Serpens