20242+2900 BU  443AB

Coord 2000	20242+2900		Discov num	BU  443		Comp	AB		Coord arcsec 2000	20 24 09.01 +29 00 07.6
Date first	1878		Date last	2015		Obs	14
Pa first	134		Pa last	151		P.A. Now (θ)	151°
Sep first	13.0		Sep last	16.7		Sep. Now (ρ)	16.7"
Mag pri	7.31		Mag sec	10.97		delta mag (ΔM)	3.66		Spectral class	A9IV (white)
Pri motion ra	+010		Sec motion ra	+005
Pri motion dec	+042		Sec motion dec	-005
Notes

rPM=1.095 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20242+2900	BU 443	AB	1878	2015	14	151	16.7	7.31	10.97	3.66		<===
Show			20242+2900	BU 443	AC	1878	2015	12	97	33.6	7.31	10.47	3.16
Show			20242+2900	BU 443	AD	1997	2015	8	139	31.6	7.31	11.20	3.89

Quadruple system
4 visible stars in this system

Precise pa	151.1		Precise sep	16.683		Constellation	Vulpecula		SAO	88629
HIP	100616		Tycho2	2168-01460-1		Gaia DR2	74752715776		HD	194358
BD	BD+28 3735		Distance	129.87		Distance ly	423.64

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20242+2900	BU 443	AB	1997	6	149	16.0	7.20	11.20	A9IV	D	202409.01+290007.6
20242+2900	BU 443	AB	2002	7	150	16.2	7.20	11.20	A9IV	D	202409.01+290007.6
20242+2900	BU 443	AB	2013	9	151	16.4	7.31	10.97	A9IV		202409.01+290007.6
20242+2900	BU 443	AB	2015	10	151	16.7	7.31	10.97	A9IV		202409.01+290007.6

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