19141+6707 HDS 2722 (HD 181043)

Coord 2000	19141+6707		Discov num	HDS2722		Comp			Coord arcsec 2000	19 14 03.91 +67 06 55.9
Date first	1991		Date last	2010		Obs	5
Pa first	85		Pa last	25.2		P.A. Now (θ)	25.2°
Sep first	0.1		Sep last	0.146		Sep. Now (ρ)	0.146"
Mag pri	7.49		Mag sec	7.82		delta mag (ΔM)	0.33		Spectral class	A2 (white)
Pri motion ra	+003		Sec motion ra
Pri motion dec	+010		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Name	HD 181043		Constellation	Draco		SAO	18234		HIP	94505
Tycho2	4229-01415-1		Gaia DR2	2255117491240909824		HD	181043		GC	26563
BD	BD+66 1179		Distance	153.14		Distance ly	499.54

discov_num	notes	refcode
HDS2722	Mean motion indicates P ~ 80 yr, rho decreasing.	Msn1999b

refcode	metd	author	reference
Msn1999b	Su j	Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E.,	1999AJ....117.1890M
Msn1999b		Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al.
Msn1999b		AJ 117, 1890, 1999

idgroup	discov	author
1	HDS	Hipparcos Double Star (from additional DD list)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19141+6707	HDS2722		2003	4	44	0.1	7.49	7.82	A2	N D	191403.91+670655.9
19141+6707	HDS2722		2010	5	25	0.1	7.49	7.82	A2	N D	191403.91+670655.9

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS