20336+2111 HJ 2979AB

Coord 2000	20336+2111		Discov num	HJ 2979		Comp	AB		Coord arcsec 2000	20 33 38.98 +21 10 27.7
Date first	1831		Date last	2015		Obs	13
Pa first	51		Pa last	63		P.A. Now (θ)	63°
Sep first	10.0		Sep last	10.4		Sep. Now (ρ)	10.4"
Mag pri	10.35		Mag sec	11.30		delta mag (ΔM)	0.95		Spectral class
Pri motion ra	+004		Sec motion ra	+007
Pri motion dec	+001		Sec motion dec	-006
Notes

rPM=0.826 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		88837	20336+2111	HJ 2979	AB	1831	2015	13	63	10.4	10.35	11.30	0.95		<===
Show		88837	20336+2111	HJ 2979	AC	1916	2015	11	354	18.9	10.35	12.40	2.05

Triple system
3 visible stars in this system

Precise pa	63.3		Precise sep	10.38		Constellation	Vulpecula		SAO	88837
Tycho2	1645-01879-1		Gaia DR2	36029392000		HD	346964

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20336+2111	HJ 2979	AB	2000	5	63	10.4	10.35	11.30		D	203338.98+211027.7
20336+2111	HJ 2979	AB	2011	6	63	10.4	10.35	11.30		D	203338.98+211027.7
20336+2111	HJ 2979	AB	2013	8	64	10.6	10.35	11.30			203338.98+211027.7
20336+2111	HJ 2979	AB	2015	9	63	10.4	10.35	11.30			203338.98+211027.7

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