00220+4213 HJ 1021

Coord 2000	00220+4213		Discov num	HJ 1021		Comp			Coord arcsec 2000	00 21 57.78 +42 12 34.8
Date first	1828		Date last	2015		Obs	14
Pa first	247		Pa last	247		P.A. Now (θ)	247°
Sep first	4.0		Sep last	6.0		Sep. Now (ρ)	6"
Mag pri	9.68		Mag sec	10.10		delta mag (ΔM)	0.42		Spectral class	A2 (white)
Pri motion ra	+009		Sec motion ra	+009
Pri motion dec	-003		Sec motion dec	-006
Notes

This double is physical.

Spectr	G8V+M4V		Constellation	Hydrus		SAO	258219		HIP	1292
HD	1237		GL	NN 3021		CD	CD-80 9		CP	CP-80 7
Distance	17.5		Distance ly	57.08		last precise pa	247.1		last precise sep	6.016

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00220+4213	HJ 1021		2001	8	246	6.1	9.68	10.10	A2	D	002157.78+421234.8
00220+4213	HJ 1021		2002	10	246	6.2	9.68	10.10	A2	D	002157.78+421234.8
00220+4213	HJ 1021		2015	12	247	6.0	9.68	10.10	A2		002157.78+421234.8

If you need more information about this double, apply for a data request form to the WDS.