20183+1509 CHE 294AB

Coord 2000	20183+1509		Discov num	CHE 294		Comp	AB		Coord arcsec 2000	20 18 17.49 +15 08 57.3
Date first	1910		Date last	2015		Obs	13
Pa first	353		Pa last	358		P.A. Now (θ)	358°
Sep first	14.3		Sep last	16.0		Sep. Now (ρ)	16"
Mag pri	9.97		Mag sec	10.50		delta mag (ΔM)	0.53		Spectral class
Pri motion ra	-008		Sec motion ra	-016
Pri motion dec	-020		Sec motion dec	+135
Notes

rPM=1.142 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		105938	20 18 17 +15 08 57	CHE 294 AB	2015	13	358	16.0	9.97	10.50	0.53		<===
Show		105938	20 18 17 +15 08 57	CHE 294 AC	2015	12	238	13.9	9.97	11.50	1.53

Triple system
3 visible stars in this system

Precise pa	357.7		Precise sep	15.977		Constellation	Delphinus		SAO	105938
Tycho2	1631-01116-1		Gaia DR2	1805335493668081152

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20183+1509	CHE 294	AB	2006	5	357	14.1	9.97	10.50		D	201817.49+150857.3
20183+1509	CHE 294	AB	2008	6	357	15.7	9.97	10.50		D	201817.49+150857.3
20183+1509	CHE 294	AB	2015	9	358	16.0	9.97	10.50			201817.49+150857.3

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