20138+2021 HJ 2941

Coord 2000	20138+2021		Discov num	HJ 2941		Comp			Coord arcsec 2000	20 13 45.64 +20 21 29.9
Date first	1831		Date last	2015		Obs	20
Pa first	111		Pa last	109		P.A. Now (θ)	109°
Sep first	4.0		Sep last	6.2		Sep. Now (ρ)	6.2"
Mag pri	10.40		Mag sec	10.87		delta mag (ΔM)	0.47		Spectral class	F8 (yellow-white)
Pri motion ra	-046		Sec motion ra	-044
Pri motion dec	+014		Sec motion dec	+016
Notes	N V (See Notes, Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.059 (< 0.3, Physical double) This double is physical.

Precise pa	109.4		Precise sep	6.212		Constellation	Sagitta		SAO	88372
Tycho2	1626-00006-1		Gaia DR2	69191537280		HD	351703

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20138+2021	HJ 2941		2000	11	109	6.2	10.40	10.87	F8	DV	201345.64+202129.9
20138+2021	HJ 2941		2011	12	109	6.2	10.40	10.87	F8	NVD	201345.64+202129.9
20138+2021	HJ 2941		2013	14	109	6.2	10.40	10.87	F8	NV	201345.64+202129.9
20138+2021	HJ 2941		2015	16	110	6.1	10.40	10.87	F8	NV	201345.64+202129.9

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