00218+6628 STT   7AD

Coord 2000	00218+6628		Discov num	STT   7		Comp	AD		Coord arcsec 2000	00 21 50.62 +66 28 01.8
Date first	1880		Date last	2015		Obs	18
Pa first	103		Pa last	102		P.A. Now (θ)	102°
Sep first	105.2		Sep last	109.7		Sep. Now (ρ)	109.7"
Mag pri	9.21		Mag sec	7.80		delta mag (ΔM)	1.41		Spectral class	F0 (yellow-white)
Pri motion ra	-005		Sec motion ra	+028
Pri motion dec	-010		Sec motion dec	-006
Notes	N (See Notes)

rPM=1.161 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		11136	00 21 51 +66 28 02	STT 7 AB	2016	29	129	0.9	9.21	9.81	0.60
Show		11136	00 21 51 +66 28 02	STT 7 AC	2015	29	259	48.5	9.21	8.58	0.63
Show		11136	00 21 51 +66 28 02	STT 7 AD	2015	18	102	109.7	9.21	7.80	1.41		<===
Show		11132	00 21 43 +66 27 53	STT 7 CD	2015	18	95	155.5	8.58	7.80	0.78

Quadruple system
4 visible stars in this system

Precise pa	102.1		Precise sep	109.656		Constellation	Hydra		SAO	11136
Tycho2	4027-00572-1		Gaia DR2	528235004078141824		HD	1696

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00218+6628	STT 7	AD	2000	13	102	108.8	9.21	7.80		D	002150.62+662801.8
00218+6628	STT 7	AD	2003	14	102	109.1	9.21	7.80	A5	N D	002150.62+662801.8
00218+6628	STT 7	AD	2015	15	102	109.7	9.21	7.80	F0	N	002150.62+662801.8

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