01591+3313 BUP 28 AC

Coord 2000	01591+3313		Discov num	BUP  28		Comp	AC		Coord arcsec 2000	01 59 06.63 +33 12 34.8
Date first	1908		Date last	2015		Obs	8
Pa first	31		Pa last	10.8		P.A. Now (θ)	10.8°
Sep first	86.7		Sep last	111		Sep. Now (ρ)	111"
Mag pri	7.23		Mag sec	12.20		delta mag (ΔM)	4.97		Spectral class	G5 (yellow)
Pri motion ra	+244		Sec motion ra
Pri motion dec	-352		Sec motion dec
Notes	N U (See Notes, Proper motion indicates non-physical)

This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 12051	55167	01 59 07 +33 12 35	ENG 9 AB	2015	15	136	86.2	7.23	9.79	2.56
Show		55167	01 59 07 +33 12 35	BUP 28 AC	2015	8	11	111.0	7.23	12.20	4.97		<===
Show		55167	01 59 07 +33 12 35	DEA 39 AD	2015	2	85	50.2	5.32	14.32	9.00

Quadruple system
4 estimated visually detectable stars in this system

Constellation	Triangulum		SAO	55167		HIP	9269		Tycho2	2312-02433-1
HD	12051		GL	Gl 82.1		BD	BD+32 360		Distance	24.98
Distance ly	81.48

discov_num	notes	refcode
ENG 9	AB: Optical pair, based on study of relative motion of the components
	using the method of apparent motion parameters.	Kiy2008
	AB: Rectilinear solution by Friedman et al. (2011).	USN2011a

refcode	metd	author	reference
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008
USN2011a	lin -	Friedman, E.A., Mason, B.D., & Hartkopf, W.I.	2011IAUDS.175....1F
USN2011a		Inf. Circ. 175, 1, 2011

idgroup	discov	author
1	BUP	Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
1	DEA	Deacon, N.R., Hambly, N.C. & Cooke, J.A.
5	DEA	Burgett, W.S., Chambers, K.C., Hodapp, K.W., Kaiser, N., Kudritzki, R.-P.,
5	DEA	A&A 468, 163, 2007
6	DEA	Burgett, W.S., Chambers, K.C., Hodapp, K.W., Kaiser, N., Kudritzki, R.-P.,
6	DEA	Morgan, J.S., et al.
7	DEA	Deacon, N.R., Liu, M.C., Magnier, E.A., Bowler, B.P., Redstone, J., Goldman, B.,
7	DEA	Burgett, W.S., Chambers, K.C., Flewelling, H., Kaiser, N., Morgan, J.S.,
7	DEA	Price, P.A., Sweeney, W.E., Tonry, J.L., Wainscoat, R.J. & Waters, C.
8	DEA	Deacon, N.R., Liu, M.C., Magnier, E.A., Bowler, B.P., Mann, A.W., Redstone, J.A.,
8	DEA	Burgett, W.S., Chambers, K.C., Hodapp, K.W., Kaiser, N., Kudritzki, R.-P.,
8	DEA	Morgan, J.S., et al.
12	DEA	Deacon, N.R., Liu, M.C., Magnier, E.A., Aller, K.M., Best, W.M., Dupuy, T.,
12	DEA	Bowler, B.P., Mann, A.W., Redstone, J.A., Burgett, W.S., Chambers, K.C.,
12	DEA	Draper, P.W., Flewelling, H., Hodapp, K.W., Kaiser, N., Kudritzki, R.-P.,
12	DEA	Morgan, J.S., Metcalfe,N., Price, P.A., Tonry, J.L. & Wainscoat, R.J.
13	DEA	Deacon, N.R., Kraus, A.L., Wann, A.W., Magnier, E.A., Chambers, K.C., Wainscoat,
13	DEA	R.J., Tonry, J.L., Kaiser, N., Waters, C., Flewelling, H., Hodapp, K.W. &
13	DEA	Burgett, W.S.
17	ENG	changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01591+3313	BUP 28	AC	1934	3	26	91.2	7.23	12.20	G5		015906.63+331234.8
01591+3313	BUP 28	AC	1999	6	13	106.4	7.23	12.20	G5	NU	015906.63+331234.8
01591+3313	BUP 28	AC	2012	7	11	111.0	7.23	12.20	G5	NU	015906.63+331234.8
01591+3313	BUP 28	AC	2015	8	11	111.0	7.23	12.20	G5	NU	015906.63+331234.8

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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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