20145+2451 STT 402

Coord 2000	20145+2451		Discov num	STT 402		Comp			Coord arcsec 2000	20 14 30.52 +24 50 41.1
Date first	1843		Date last	2015		Obs	23
Pa first	36		Pa last	33		P.A. Now (θ)	33°
Sep first	15.2		Sep last	15.3		Sep. Now (ρ)	15.3"
Mag pri	7.46		Mag sec	10.73		delta mag (ΔM)	3.27		Spectral class	B9 (blue-white)
Pri motion ra	-002		Sec motion ra	-005
Pri motion dec	-010		Sec motion dec	-007
Notes

rPM=0.416 Nature of this double is uncertain.

Precise pa	33.4		Precise sep	15.311		Constellation	Vulpecula		SAO	88394
HIP	99767		Tycho2	2159-00483-1		Gaia DR2	28768062208		HD	192519
BD	BD+24 4053		Distance	568.18		Distance ly	1853.4

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20145+2451	STT 402		1999	12	33	15.4	7.46	10.73	B9	D	201430.52+245041.1
20145+2451	STT 402		2009	14	35	14.0	7.46	10.73	B9	D	201430.52+245041.1
20145+2451	STT 402		2013	17	34	15.4	7.46	10.73	B9		201430.52+245041.1
20145+2451	STT 402		2015	19	33	15.3	7.46	10.73	B9		201430.52+245041.1

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