You're not logged.

Login

Create your own observing lists in a few clicks and save them.
Register here

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Populars
Latest Populars
Doubles in session

Current system

18339+5221
SLE 216 AB,D

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18339+5221 SLE 216 AB,D

18^h 33^m 56.69^s +52° 21' 12.6" P.A. 338.00 sep 93.7 mag 5.50,11.20 Sp K0III dist. 195.69 pc (638.34 l.y.)

Coord 2000	18339+5221		Discov num	SLE 216		Comp	AB,D		Coord arcsec 2000	18 33 56.69 +52 21 12.6
Date first	1982		Date last	2005		Obs	4
Pa first	338		Pa last	338		P.A. Now (θ)	338°
Sep first	92.8		Sep last	93.7		Sep. Now (ρ)	93.7"
Mag pri	5.50		Mag sec	11.20		delta mag (ΔM)	5.7		Spectral class	K0III (yellow-orange)
Pri motion ra	-003		Sec motion ra	-029
Pri motion dec	+003		Sec motion dec	+029
Notes	N (See Notes)

rPM=0.897

This double is not physical.

18339+5221 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		31051	18 33 57 +52 21 13	A 1377 AB	2016	202	134	0.2	6.20	6.40	0.20	Y
Show	HD 171779	31051	18 33 57 +52 21 13	STF 2348 AB,C	2012	63	271	25.7	5.50	8.65	3.15
Show		31051	18 33 57 +52 21 13	SLE 216 AB,D	2005	4	338	93.7	5.50	11.20	5.70		<===
Show		31051	18 33 57 +52 21 13	SLE 216 AB,E	2005	3	232	109.1	5.50	12.20	6.70

Quintuple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Draco		SAO	31051		HIP	91013		Tycho2	3539-02620-1
HD	171779		HR	6983		ADS	11468		BD	BD+52 2238
Distance	195.69		Distance ly	638.34