15440+2220 COU 106 (PS Ser)

Coord 2000	15440+2220		Discov num	COU 106		Comp			Coord arcsec 2000	15 43 57.93 +22 20 23.0
Date first	1966		Date last	2011		Obs	33
Pa first	278		Pa last	271		P.A. Now (θ)	271°
Sep first	0.3		Sep last	0.3		Sep. Now (ρ)	0.3"
Mag pri	8.69		Mag sec	9.22		delta mag (ΔM)	0.53		Spectral class	F8 (yellow-white)
Pri motion ra	-011		Sec motion ra	-011
Pri motion dec	-021		Sec motion dec	-021
Notes	N (See Notes)

Nature of this double is uncertain.

Precise pa	271		Precise sep	0.34		Var name	PS Ser		Constellation	Serpens
SAO	83970		HIP	77045		Tycho2	1501-01336-1		HD	140629
BD	BD+22 2878		Distance	129.2		Distance ly	421.45

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15440+2220	COU 106		2005	28	275	0.3	8.69	9.22	F8	D	154357.93+222023.0
15440+2220	COU 106		2008	30	274	0.4	8.69	9.22	F8	N D	154357.93+222023.0
15440+2220	COU 106		2011	33	271	0.3	8.69	9.22	F8	N	154357.93+222023.0

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