22112+5049 HJ 1741 AB (HD 210715)

Coord 2000	22112+5049		Discov num	HJ 1741		Comp	AB		Coord arcsec 2000	22 11 09.78 +50 49 23.8
Date first	1828		Date last	2015		Obs	19
Pa first	329		Pa last	286.4		P.A. Now (θ)	286.4°
Sep first	19.0		Sep last	37.751		Sep. Now (ρ)	37.751"
Mag pri	5.40		Mag sec	10.99		delta mag (ΔM)	5.59		Spectral class	A5V (white)
Pri motion ra	+122		Sec motion ra	-005
Pri motion dec	+048		Sec motion dec	-003
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=1.044 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 210715	34143	22 11 10 +50 49 24	HJ 1741 AB	2015	19	286	37.8	5.40	10.99	5.59		<===
Show		34143	22 11 10 +50 49 24	HJ 1741 AC	2015	5	270	64.0	5.40	11.00	5.60
Show		34143	22 11 10 +50 49 24	HJ 1741 AD	2015	13	271	73.5	5.40	9.96	4.56
Show		34143	22 11 10 +50 49 24	DRS 21 AE	2015	2	243	10.9	4.96	13.10	8.14

Quintuple system
5 estimated visually detectable stars in this system

Name	HD 210715		Constellation	Lacerta		SAO	34143		HIP	109521
Tycho2	3618-04103-1		Gaia DR2	2001025095719170560		HD	210715		HR	8463
GC	31046		ADS	15708		BD	BD+50 3602		FK5	3774
Distance	56.15		Distance ly	183.16

discov_num	notes	refcode
HJ 1741	AB: Optical pair, based on study of relative motion of the components
	using the method of apparent motion parameters.	Kiy2008

refcode	metd	author	reference
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008

idgroup	discov	author
1	DRS	De Rosa, R.J., Bulger, J., Patience, J., Leland, B., Macintosh, B., Schnieder, A.,
1	DRS	Song, I., Marois, C. et al.
2	DRS	De Rosa, R.J., Patience, J., Vigan, A., Wilson, P.A., Schnieder, A.,
2	DRS	McConnell, N.J., Wiktorowicz, S.J., Marois, C., Song, I., Macintosh, B.,
2	DRS	Graham, J.R., Bessell, M.S., Doyon, R., & Lai, O.
3	DRS	De Rosa, R.J., Patience, J., Wilson, P. A., Schneider, A., Wiktorowicz, S. J.,
3	DRS	Vigan, A., Marois, C., Song, I., Macintosh, B., Graham, J. R., et al.
6	DRS	De Rosa, R.J., Patience, J., Ward-Duong, K., Vigan, A., Marois, C., Song, I.,
6	DRS	Macintosh, B., Graham, J.R., Doyon, R., Bessell, M.S., et al.
7	DRS	De Rosa, R.J., Nielsen, E.L., Rameau, J., Duchene, G., Greenbaum, A.Z., Wang, J.J.,
7	DRS	Ammons, S.M., Bailey, V.P., Barman, T., Bulger, J., Chilcote, J., Cotten, T.,
7	DRS	Doyon, R., Esposito, T.M., Fitzgerald, M.P., Follette, K.B., Gerard, B.L.,
7	DRS	Goodsell, S.J., Graham, J.R., Hibon, P., Horn, J., Hung, L.-W., Ingraham, P.,
7	DRS	Kalas, P., Konopacky, Q., Larkin, J.E., Macintosh, B., Maire, J., Marchis, F.,
7	DRS	Marley, M.S., Marois, C., Metchev, S., Millar-Blanchaer, M.A., Oppenheimer, R.,
7	DRS	Palmer, D., Patience, J., Perrin, M., Poyneer, L., Pueyo, L., Rajan, A., Rantakyro,
7	DRS	F.T., Ren, B., Ruffio, J.-B., Savransky, D., Schneider, A.C., Sivaramakrishnan, A.,
7	DRS	Song, I., Soummer, R., Tallis, M., Thomas, S., Wallace, J.K., Ward-Duong, K.,
7	DRS	Wiktorowicz, S. & Wolff, S.
9	HJ	Herschel, J.F.W.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
22112+5049	HJ 1741	AB	2008	15	286	36.0	5.40	10.40	A5V	NLD	221109.78+504923.8
22112+5049	HJ 1741	AB	2014	18	285	36.8	5.40	10.99	A5V	NL	221109.78+504923.8
22112+5049	HJ 1741	AB	2015	19	286	37.8	5.40	10.99	A5V	NL	221109.78+504923.8

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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

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