19164+1433 CHR 85 Aa,Ab

Coord 2000	19164+1433		Discov num	CHR  85		Comp	Aa,Ab		Coord arcsec 2000	19 16 26.78 +14 32 40.6
Date first	1985		Date last	2021		Obs	14
Pa first	54		Pa last	20.4		P.A. Now (θ)	312.4°
Sep first	0.1		Sep last	0.04		Sep. Now (ρ)	0.039"
Mag pri	5.90		Mag sec	7.40		delta mag (ΔM)	1.5		Spectral class	B9.5V (blue-white)
Pri motion ra	+009		Sec motion ra
Pri motion dec	+004		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		104668	19 16 27 +14 32 41	CHR 85 Aa,Ab	2021	14	20	0.0	5.90	7.40	1.50	Y	<===
Show	HD 180555	104668	19 16 27 +14 32 41	STF 2489 AB	2013	32	347	8.3	5.67	9.30	3.63
Show		104668	19 16 27 +14 32 41	WAL 109 AC	2008	3	355	60.4	5.67	10.88	5.21

Quadruple system
3 estimated visually detectable stars in this system

Constellation	Aquila		SAO	104668		HIP	94720		Tycho2	1053-00804-1
Gaia DR2	4320279260621065472		HD	180555		HR	7307		ADS	12248
BD	BD+14 3852		Distance	125.63		Distance ly	409.81

Period (P)	13.673y	± 0.069	Periastron (T)	2008.572y	± 1.101	Semi-major axis (a)	0.0583a	± 0.0014
Eccentricity (e)	0.022	± 0.01	Inclination (i)	131.3°	± 3.7	Longitude of periastron (ω)	262.7°	± 28.7
Node (Ω)	242.3°	± 4.5	Notes			Reference	Tok2015c
Equinox	2000		Last observation	2014		Grade	3	(1=Definitive, 9=Indet.)

label theta rho 2000 214.4 0.052 2001 188.6 0.044 2002 153.3 0.039 2003 117.5 0.043 2004 91.1 0.052 2005 71.5 0.057 2006 53.9 0.057 2007 33.7 0.050 2008 5.1 0.041 2009 325.5 0.038 2010 289.0 0.044 2011 264.0 0.053 2012 245.3 0.058 2013 227.7 0.057 2014 206.9 0.050 2015 178.0 0.042 2016 140.8 0.040 2017 107.8 0.046 2018 84.2 0.054 2019 65.8 0.058 2020 47.8 0.055 2021 25.6 0.047 2022 353.1 0.039 2023 312.4 0.039 2024 279.7 0.047 2025 257.5 0.056 2026 239.6 0.058 2027 221.5 0.055 2028 198.6 0.047 2029 166.3 0.040 2030 129.0 0.041		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

No records found.

refcode	metd	author	reference
Tok2015c	orb+j	Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P.	2015AJ....150...50T
Tok2015c	+St	AJ 150, 50, 2015 (some measures corrected in Tok2017b)	2017AJ....154..110T

idgroup	discov	author
1	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)
3	STF	Struve, F.G.W.
36	WAL	Wallenquist, A.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19164+1433	CHR 85	Aa,Ab	1999	7	218	0.1	5.90	7.40	B9.5V	NOD	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2006	9	39	0.1	5.90	7.40	B9.5V	NO	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2014	10	199	0.0	5.90	7.40	B9.5V	O	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2015	11	72	0.0	5.90	7.40	B9.5V	O	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2017	11	93	0.0	5.90	7.40	B9.5V	O	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2018	12	72	0.1	5.90	7.40	B9.5V	O	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2019	13	61	0.1	5.90	7.40	B9.5V	O	191626.78+143240.6
19164+1433	CHR 85	Aa,Ab	2021	14	20	0.0	5.90	7.40	B9.5V	O	191626.78+143240.6

If you need more information about this double, apply for a data request form to the WDS.

No records found.


No records found.

Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation.

Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS