20041+1704 TNN 14 AK

Coord 2000	20041+1704		Discov num	TNN  14		Comp	AK		Coord arcsec 2000	20 04 06.22 +17 04 12.6
Date first	1999		Date last	2004		Obs	2
Pa first	179		Pa last	162		P.A. Now (θ)	162°
Sep first	7.9		Sep last	6.21		Sep. Now (ρ)	6.21"
Mag pri	4.39		Mag sec	12.38		delta mag (ΔM)	7.99		Spectral class	G0V (yellow)
Pri motion ra	-395		Sec motion ra
Pri motion dec	-408		Sec motion dec
Notes	N U K (See Notes, Proper motion indicates non-physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		105635	20 04 06 +17 04 13	LIM 3 Aa,Ab	2018	7	337	0.5	4.59	14.39	9.80
Show		105635	20 04 06 +17 04 13	SBN 1 Aa,Ac	2017	6	95	7.1	4.59
Show	15 Sge	105635	20 04 06 +17 04 13	STT 592 AB	2015	27	291	163.2	5.86	9.50	3.64
Show		105635	20 04 06 +17 04 13	STT 592 AC	2015	29	335	217.0	5.86	6.92	1.06
Show		105635	20 04 06 +17 04 13	BUP 202 AD	2015	11	3	89.1	5.86	11.34	5.48
Show		105635	20 04 06 +17 04 13	BUP 202 AE	2013	6	51	175.0	5.86	11.77	5.91
Show		105635	20 04 06 +17 04 13	BUP 202 AF	2015	6	315	142.4	5.86	12.31	6.45
Show		105635	20 04 06 +17 04 13	SMR 20 AI	2015	5	129	132.1	5.86	11.14	5.28
Show		105635	20 04 06 +17 04 13	TNN 14 AJ	2004	1	283	3.3	4.39	13.53	9.14
Show		105635	20 04 06 +17 04 13	TNN 14 AK	2004	2	162	6.2	4.39	12.38	7.99		<===
Show		105635	20 04 06 +17 04 13	TNN 14 AL	2004	2	140	9.3	4.39	12.97	8.58
Show		105629	20 03 55 +17 05 04	ENG 69 BC	2015	24	24	152.0	9.50	6.92	2.58
Show		105622	20 03 55 +17 05 04	STTA 202 BG	2015	23	230	181.4	9.50	9.01	0.49
Show		105629	20 03 59 +17 07 23	BUP 202 CH	2015	7	185	95.6	6.92	12.31	5.39

14-fold system
12 estimated visually detectable stars in this system

Var name	NSV12757 Sge		Constellation	Sagitta		SAO	105635		HIP	98819
Tycho2	1621-01499-1		HD	190406		HR	7672		GC	27835
GL	Gl 779		BD	BD+16 4121		Flamsteed	15 Sagittae		Flamsteed name	15 Sge
Distance	17.77		Distance ly	57.97

discov_num	notes	refcode
STT 592	15 Sge. B is BD+16@4117a.
	AB and AC: Optical pairs, based on study of relative motion of the
	components using the method of apparent motion parameters.	Kiy2008
LIM 3	Aa,Ab: GJ 779 = 15 Sge. Due to the high proper motion of the primary,
	Liu et al. (2002) determine that the faint companion shares common	LiM2002
	proper motion. Spectral type of the companion is estimated at L4.5 +/-
	1.5; assuming the two components are coeval, the inferred mass of the
	companion is 55-78 Mjup.
	Boccaletti et al (2003) derive spectral type for the companion of L4.5	Boc2003
	+/- 1.5 and a mass of 60-72 Mjup.
BUP 202	AD: Optical pair, based on study of relative motion of the components
	using the method of apparent motion parameters.	Kiy2008
STT 592	AB, AC: Rectilinear solutions by Hurowitz et al. (2014).	USN2014b
BUP 202	AD: Rectilinear solution by Friedman et al. (2011).	USN2011a

refcode	metd	author	reference
Boc2003	Ao j	Boccaletti, A., Chauvin, G., Lagrange, A.-M., & Marchis, F.	2003A&A...410..283B
Boc2003		A&A 410, 283, 2003
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008
LiM2002	A j	Liu, M.C., Fischer, D.A., Graham, J.R. Lloyd, J.P., & Marcy, G.W.	2002ApJ...571..519L
LiM2002		ApJ 571, 519, 2002
USN2011a	lin -	Friedman, E.A., Mason, B.D., & Hartkopf, W.I.	2011IAUDS.175....1F
USN2011a		Inf. Circ. 175, 1, 2011
USN2014b	lin -	Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D.	2014IAUDS.183....1H
USN2014b		Inf. Circ. 183, 1, 2014

idgroup	discov	author
1	BUP	Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
1	ENG	changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to
32	SBN	Serabyn, E., Wallace, J.K., Troy, M., Mennesson, B., Haguenauer, P.,
32	SBN	Gappinger, R.O., & Bloemhof, E. (no data)
33	SBN	Serabyn, E., Wallace, K., Troy, M., Mennesson, B., Haguenauer, P., Gappinger, R.,
33	SBN	& Burruss, R.
34	SBN	Serabyn, E., Mawet, D., Bloemhof, E., Haguenauer, P., Mennesson, B., Wallace, K.,
34	SBN	& Hickey, J.
37	SMR	Schlimmer, J.
92	STT	Struve, O.
129	TNN	Tanner, A.M., Gelino, C.R., & Law, N.M.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20041+1704	TNN 14	AK	2004	1	162	6.2	4.39	12.38	G0V	NU K	200406.22+170412.6

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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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