18311+3215 STF 2333 BC

18^h 31^m 06.70^s +32° 14' 49.1" P.A. 37.00 sep 161.1 mag 8.57,12.90

Coord 2000	18311+3215		Discov num	STF2333		Comp	BC		Coord arcsec 2000	18 31 06.70 +32 14 49.1
Date first	1880		Date last	2015		Obs	10
Pa first	37		Pa last	36.7		P.A. Now (θ)	36.7°
Sep first	160.9		Sep last	161.121		Sep. Now (ρ)	161.121"
Mag pri	8.57		Mag sec	12.90		delta mag (ΔM)	4.33		Spectral class
Pri motion ra	-001		Sec motion ra	-001
Pri motion dec	-002		Sec motion dec	+002
Notes

rPM=1.789

This double is not physical.

18311+3215 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 171026	67059	18 31 07 +32 14 43	STF 2333 AB	2019	64	333	6.3	7.82	8.57	0.75
Show		67059	18 31 07 +32 14 43	STF 2333 AC	2015	10	35	164.1	7.82	12.90	5.08
Show		67059	18 31 07 +32 14 43	STF 2333 AD	2015	8	339	85.8	7.82	13.70	5.88
Show			18 31 07 +32 14 49	STF 2333 BC	2015	10	37	161.1	8.57	12.90	4.33		<===

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Lyra

Tycho2

2628-02310-1

Gaia DR2

4592126913461440640