23075+2108 MAR   1Aa,Ae

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)	308.7°
Sep first	0.4		Sep last	0.4		Sep. Now (ρ)	0.43"
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 This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ab	2014	32	71	1.7	5.38	16.30	10.92	Y
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ac	2014	31	339	1.0	5.38	14.65	9.27	Y
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ad	2014	24	233	0.7	5.38	15.26	9.88	Y
Show		91022	23 07 29 +21 08 03	MAR 1 Aa,Ae	2014	16	309	0.4	5.38	15.90	10.52	Y	<===
Show	V342 Peg	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 visible stars in this system

Precise pa	272		Precise sep	0.384		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		Distance	39.4
Distance ly	128.52		last precise pa	272		last precise sep	0.384

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	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2014

label rho theta 2000 0.418 170.0 2001 0.413 175.8 2002 0.406 181.8 2003 0.400 188.0 2004 0.393 194.4 2005 0.387 201.1 2006 0.381 207.9 2007 0.376 214.9 2008 0.372 222.1 2009 0.370 229.4 2010 0.370 236.8 2011 0.371 244.1 2012 0.373 251.4 2013 0.377 258.6 2014 0.382 265.5 2015 0.388 272.3 2016 0.395 278.9 2017 0.402 285.2 2018 0.408 291.4 2019 0.414 297.3 2020 0.420 303.1 2021 0.425 308.7 2022 0.428 314.3 2023 0.430 319.7 2024 0.431 325.2 2025 0.430 330.6 2026 0.429 336.0 2027 0.425 341.6 2028 0.421 347.2 2029 0.416 352.9 2030 0.410 358.8		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
23075+2108	MAR 1	Aa,Ae	2010	7	244	0.4	5.38	15.90	A5V	N K	230728.71+210803.3
23075+2108	MAR 1	Aa,Ae	2011	9	252	0.4	5.38	15.90	A5V	NO K	230728.71+210803.3
23075+2108	MAR 1	Aa,Ae	2014	16	272	0.4	5.38	15.90	A5V	NO K	230728.71+210803.3

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