23075+2108 MAR 1 Aa,Ae

23^h 07^m 28.71^s +21° 08' 03.3" P.A. 272.00 sep 0.4 mag 5.38,15.90 Sp A5V dist. 39.4 pc (128.52 l.y.)

Coord 2000	23075+2108		Discov num	MAR 1		Comp	Aa,Ae		Coord arcsec 2000	23 07 28.71 +21 08 03.3
Date first	2009		Date last	2014		Obs	16
Pa first	234		Pa last	272		P.A. Now (θ)	272°
Sep first	0.4		Sep last	0.384		Sep. Now (ρ)	0.384"
Mag pri	5.38		Mag sec	15.90		delta mag (ΔM)	10.52		Spectral class	A5V (white)
Pri motion ra	+108		Sec motion ra
Pri motion dec	-050		Sec motion dec
Notes	N O K (See Notes, Orbital solution, 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

This double is physical.

23075+2108 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	V342 Peg	91022	23 07 29 +21 08 03	MAR 1 Aa,Ab	2015	33	67	1.7	5.38	16.30	10.92	Y
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ac	2015	32	329	0.9	5.38	14.65	9.27	Y
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ad	2015	25	221	0.7	5.38	15.26	9.88	Y
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ae	2014	16	272	0.4	5.38	15.90	10.52	Y	<===
Show		91022	23 07 29 +21 08 03	LWR 19 AB	2007	2	13	14.2	5.40	21.60	16.20
Show		91022	23 07 29 +21 08 03	LWR 19 AC	2007	2	116	14.9	5.40	20.40	15.00
Show		91022	23 07 29 +21 08 03	CLO 11 AD	1994	1	224	240.0	5.96	20.80	14.84

Octuple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	V342 Peg		Constellation	Pegasus		SAO	91022		HIP	114189
Tycho2	1718-02350-1		Gaia DR2	2832463659640297472		HD	218396		HR	8799
BD	BD+20 5278		FK5	3850		Distance	39.4		Distance ly	128.52

ORBITAL ELEMENTS

Period (P)	56.99y	± 3.09	Periastron (T)	1995.61y	± 0.93	Semi-major axis (a)	0.431a	± 0.012
Eccentricity (e)	0		Inclination (i)	30.95°	± 1.43	Longitude of periastron (ω)	0°
Node (Ω)	145.73°	± 7.11	Notes	n		Reference	Zur2015
Equinox	2000		Last observation	2014		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	170.0	0.418
2001	175.8	0.413
2002	181.8	0.406
2003	188.0	0.400
2004	194.4	0.393
2005	201.1	0.387
2006	207.9	0.381
2007	214.9	0.376
2008	222.1	0.372
2009	229.4	0.370
2010	236.8	0.370
2011	244.1	0.371
2012	251.4	0.373
2013	258.6	0.377
2014	265.5	0.382
2015	272.3	0.388
2016	278.9	0.395
2017	285.2	0.402
2018	291.4	0.408
2019	297.3	0.414
2020	303.1	0.420
2021	308.7	0.425
2022	314.3	0.428
2023	319.7	0.430
2024	325.2	0.431
2025	330.6	0.430
2026	336.0	0.429
2027	341.6	0.425
2028	347.2	0.421
2029	352.9	0.416
2030	358.8	0.410

grafico orbita

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

wds23075%2B2108w.png orbit plot

Measures: green=micrometric, blue=interferometric, purple=photographic