07304+1352 STF 1102 AB (HD 59432)

Coord 2000	07304+1352		Discov num	STF1102		Comp	AB		Coord arcsec 2000	07 30 26.25 +13 51 54.0
Date first	1825		Date last	2016		Obs	35
Pa first	50		Pa last	45.3		P.A. Now (θ)	45.3°
Sep first	8.0		Sep last	7.664		Sep. Now (ρ)	7.664"
Mag pri	7.36		Mag sec	9.21		delta mag (ΔM)	1.85		Spectral class	F5 (yellow-white)
Pri motion ra	-043		Sec motion ra	-043
Pri motion dec	-021		Sec motion dec	-021
Notes	N V (See Notes, Proper motion indicates physical)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 59432	96964	07 30 26 +13 51 54	STF 1102 AB	2016	35	45	7.7	7.36	9.21	1.85		<===
Show		96964	07 30 26 +13 51 54	STF 1102 AC	2015	8	77	21.8	7.36	13.23	5.87
Show		96964	07 30 26 +13 51 54	STF 1102 AD	2015	20	131	111.9	7.36	8.04	0.68
Show			07 30 27 +13 51 60	STF 1102 BC	2015	7	91	15.9	9.21	13.23	4.02
Show			07 30 27 +13 51 60	STF 1102 BE	2015	8	3	30.4	9.21	11.96	2.75
Show		96967	07 30 32 +13 50 40	TOK 392 Da,Db	2021	13	253	0.1	8.00	11.70	3.70	Y

Sextuple system
5 estimated visually detectable stars in this system

Name	HD 59432		Constellation	Gemini		SAO	96964		HIP	36485
Tycho2	0776-00135-1		Gaia DR2	3163696107354305536		HD	59432		GC	10039
BD	BD+14 1681		Distance	45.41		Distance ly	148.13

discov_num	notes	refcode
STF1102	AB: HJL 84.	HJL1986
	AD: HJL1048.	HJL1986
	AD: SHY 191. Bayesian analysis by Shaya & Olling (2011) indicates very	Shy2011
	high (near 100%) probability pair is physical.
	AD: Halbwachs et al. (2012): SB1 orbit of D, P=2708.2d, e=0.716,	HJL2012b
	K1=4.93, V0=-2.38 => M2min=0.27. D co-moving with HIP 33818 at 6.0pc.	Tok2014d
	BD: HJL1049.	HJL1986
TOK 392	Da,Db: This is a quadruple system. The 7".7 AB pair (STF 1102) is
	HIP 36485, the CPM component D = HIP 36497 = HD 59450 is located at
	112" from it, while the WDS components C and E are optical. The
	physical nature of AD is established by common PM, distance, and RV.
	D is a known SB1 with P=2708d=7.4yr (Halbwachs et al. 2012, MNRAS 422,
	14) and an estimated semi-major axis of 93mas, also an acceleration
	binary. We resolved the Da,Db pair at 0".11, dI=2.6. The minimum mass
	of Db derived from its SB orbit is 0.27 Msun, while we estimate the
	masses of Da and Db as 1.05 and 0.6 Msun from their luminosity. A
	previous non-resolution of D is reported in INT4; it was also	RAO2015
	unresolved with Robo-AO (Riddle et al. 2015).	Tok2015c

refcode	metd	author	reference
HJL1986	Pa -	Halbwachs, J.L.	1986A&AS...66..131H
HJL1986		A&AS 66, 131, 1986
HJL1986		(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986		only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
HJL2012b	not -	Halbwachs, J.L., Mayor, M., & Udry, S.	2012MNRAS.422...14H
HJL2012b		MNRAS 422, 14, 2012
RAO2015	Ag u	Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr.,	2015ApJ...799....4R
RAO2015	+orb	Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
RAO2015		Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
RAO2015		ApJ 799, 4, 2015
RAO2015		(Note: Paper includes separation/magnitude difference limits for all stars
RAO2015		observed. These limits have been added to the Interferometric Catalog even for
RAO2015		resolved pairs, to indicate restrictions on any potential additional components.)
Shy2011	-	Shaya, E.J. & Olling, R.	2011ApJS..192....2S
Shy2011		ApJS 192, 2, 2011
Shy2011		(Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011		added to WDS only if probability 90% or greater.)
Tok2014d	E2 -	Tokovinin, A.	2014AJ....147...86T
Tok2014d		AJ 147, 86, 2014
Tok2015c	orb+j	Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P.	2015AJ....150...50T
Tok2015c	+St	AJ 150, 50, 2015 (some measures corrected in Tok2017b)	2017AJ....154..110T

idgroup	discov	author
1	STF	Struve, F.G.W.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
07304+1352	STF1102	AB	2002	21	45	7.7	7.36	9.21	F5	N DV	073026.25+135154.0
07304+1352	STF1102	AB	2006	22	45	7.5	7.36	9.21	F5	N DV	073026.25+135154.0
07304+1352	STF1102	AB	2011	23	46	7.9	7.36	9.21	F5	NVD	073026.25+135154.0
07304+1352	STF1102	AB	2012	25	45	7.5	7.36	9.21	F5	NVD	073026.25+135154.0
07304+1352	STF1102	AB	2013	26	46	7.5	7.36	9.21	F5	NVD	073026.25+135154.0
07304+1352	STF1102	AB	2015	30	44	7.5	7.36	9.21	F5	NV	073026.25+135154.0
07304+1352	STF1102	AB	2016	32	45	7.7	7.36	9.21	F5	NV	073026.25+135154.0

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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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