01576+4205 YSC 125

01^h 57^m 34.87^s +42° 04' 36.1" P.A. 33.00 sep 0.0 mag 9.40,10.30 Sp G0 dist. 69.2 pc (225.73 l.y.)

Coord 2000	01576+4205	Discov num	YSC 125	Comp		Coord arcsec 2000	01 57 34.87 +42 04 36.1
Date first	2007	Date last	2007	Obs	1
Pa first	33	Pa last	32.7	P.A. Now (θ)	32.7°
Sep first	0.0	Sep last	0.021	Sep. Now (ρ)	0.021"
Mag pri	9.40	Mag sec	10.30	delta mag (ΔM)	0.9	Spectral class	G0 (yellow)
Pri motion ra	+284	Sec motion ra
Pri motion dec	-102	Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Andromeda		HIP	9121		Tycho2	2824-01054-1		Gaia DR2	346081253464896128
BD	BD+41 379		Distance	69.2		Distance ly	225.73

SUSPECTED ORBITAL ELEMENTS

Identifier	01576+4205
coord_arcsec_2000	015734.65+420437.0

Period (P)	694.87d	± 0.35	Periastron (T)	47889.5d (1989.993y)	± 1.1	Semi-major axis (a)	22.2m	± 1.8
Eccentricity (e)	0.57	± 0.007	Inclination (i)	96°	± 5.7	Longitude of periastron (ω)	310.2°	± 1.1
Node (Ω)	214.1°	± 7.7	Notes	n		Reference	Ren2010
Equinox	2000		Last observation	1991		Grade	9	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	72.6	0.005
2001-01-01	35.0	0.026
2002-01-01	54.4	0.009
2003-01-01	33.6	0.022
2004-01-01	47.9	0.013
2005-01-01	31.6	0.017
2006-01-01	44.5	0.017
2007-01-01	26.0	0.008
2008-01-01	42.3	0.021
2009-01-01	226.6	0.004
2010-01-01	40.7	0.024
2011-01-01	213.2	0.011
2012-01-01	39.4	0.026
2013-01-01	207.3	0.011
2014-01-01	38.3	0.027
2015-01-01	197.8	0.007
2016-01-01	37.3	0.028
2017-01-01	166.7	0.004
2018-01-01	36.3	0.028
2019-01-01	83.4	0.004
2020-01-01	35.3	0.026
2021-01-01	57.2	0.008
2022-01-01	34.0	0.024
2023-01-01	49.1	0.012
2024-01-01	32.3	0.018
2025-01-01	45.2	0.016
2026-01-01	28.4	0.011
2027-01-01	42.8	0.020
2028-01-01	260.1	0.001
2029-01-01	41.1	0.023
2030-01-01	214.8	0.010

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 01576+4205 YSC 125 : NOTES

discov_num	notes	refcode
YSC 125	There is some evidence of a very faint third component in this system
	with separation of 0.45 arcsec.	Hor2011b
	Improved SB2 orbit. A: Teff = 5789 +/- 21 K, B: Teff = 4544 +/- 164.	Kie2018
NLTT 6522	Orbit determined by fitting revised Hipparcos intermediate astrometric
	data. Derived component masses 0.99 +/- 0.11 and 0.75 +/- 0.05 Msun.	Ren2010

REFERENCES

refcode	metd	author	reference
Hor2011b	S j	Horch, E.P., van Altena, W.F., Howell, S.B., Sherry, W.H., & Ciardi, D.R.	2011AJ....141..180H
Hor2011b		AJ 141, 180, 2011
Kie2018	orb -	Kiefer, F., Halbwachs, J.-L., Lebreton, Y., Soubiran, C., Arenou, F., Pourbaix, D.,	2018MNRAS.474..731K
Kie2018	+not	Famaey, B., Guillout, P., Ibata, R. & Mazeh, T.
Kie2018		MNRAS 474, 731, 2018
Ren2010	orb -	Ren, S. & Fu, Y.	2010AJ....139.1975R
Ren2010		AJ 139, 1975, 2010

DISCOVERER

idgroup	discov	author
1	YSC	Yale-Southern Connecticut (from additional DD list - see HOR)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01576+4205	YSC 125		2007	1	33	0.0	9.40	10.30	G0	N D	015734.65+420437.0

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WDS 01576+4205 YSC 125 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 01576+4205 YSC 125 : MEASURES

No records found.

WDS 01576+4205 : VIRTUAL EYEPIECE

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WDS 01576+4205 : ALADIN DSS IMAGE @ 01^h 57^m 34.87^s +42° 04' 36.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 01576+4205 YSC 125 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		01576+4205	YSC 125		33	0.0
Show		01567+4215	NSN 15	AB	5	9.1	15
Show		01568+4143	RAO 634		316	0.2	24
Show		01593+4146	COU1509		301	1.3	27
Show		01560+4143	UC 647		95	46.5	29
Show		01543+4207	COU1362		114	1.2	38
Show		01564+4243	A 1525		209	1.2	41
Show		01581+4123	S 404	AB	84	29.6	42
Show		01581+4123	KPP4351	AD	244	42.2	42
Show		01581+4123	KPP4351	AE	242	42.5	42
Show		01581+4123	S 404	BC	101	84.0	42
Show		01581+4123	KPP4351	DE	165	3.0	43
Show		02015+4215	BVD 181		195	17.4	46
Show		01563+4251	A 1524	AB	235	0.3	49
Show		01563+4251	A 1524	AC	12	24.4	49
Show		02017+4236	TVB 28		324	9.2	56
Show		01530+4134	TDS2034		146	0.4	60
Show		01524+4125	MLB 9		319	6.0	71
Show	Almach	02039+4220	STF 205	A,BC	63	9.5	72
Show	Almach	02039+4220	BAR 22	AD	245	27.9	72
Show		02039+4220	STT 38	BC	120	0.3	72
Show		02016+4107	COU1510		137	0.4	73
Show		02009+4308	UC 662		243	39.9	74
Show		02033+4245	TVB 29	BC	222	7.2	76
Show		01578+4049	TDS2065		235	1.9	76
Show		01570+4324	ES 1499		299	6.5	80
Show		01554+4047	LDS3324	AB	300	118.2	82
Show		01554+4047	LDS3324	AC	70	113.3	82
Show		02021+4311	TDS2091		82	0.5	84
Show		01515+4117	HDS 252		262	1.1	84
Show		01514+4116	DAM1284		226	2.8	85
Show		01507+4126	GRV 102		155	30.6	86
Show		01501+4226	BJN 2		328	8.9	86
Show		02002+4332	COU1664		258	0.4	92
Show		01492+4153	BRT 327		329	2.2	94
Show		01533+4044	HJ 1094		357	61.0	95
Show		01489+4215	POP 125		48	1.6	97
Show		02018+4040	A 1923		323	0.7	98
Show		01553+4344	TDS2055		236	0.5	103
Show		02014+4340	A 1527		238	5.3	104
Show		01514+4329	HJ 2089		306	29.0	109
Show		01566+4355	LEP 5		188	96.1	111
Show		01543+4020	COU1363		35	2.7	113
Show		01478+4237	BJN 23	AB	220	27.4	114
Show		01478+4237	SKF1806	BC	80	27.9	114
Show		01488+4107	GRV 100		344	61.0	114
Show		01482+4251	TDS2010		8	0.6	115
Show		01493+4058	ES 158		47	7.2	115
Show		02047+4329	TDS2103		20	0.6	116
Show		01509+4037	COU1361		282	1.1	116
Show		01472+4212	A 1523		64	0.5	116

WDS 01576+4205 : COMPONENTS

	A
B	pa=25.5° sep=0.02"

01576+4205 A

Componente originario normalizzato	AB	Coord arcsec 2000	015734.87+420436.1	Mag	9.4	Spectral class	G0 (yellow)
PmRA	284.00	PmDE	-102.0	HIP	9121	Tycho2	2824-01054-1
BD	BD+41 379

Tycho2

Tycho2	2824-01054-1	Pflag		RAmdeg	29.39530314	DEmdeg	42.07670135
PmRA	284.7	PmDE	-101.3	E RAmdeg	11	E DEmdeg	13
E pmRA	1.3	E pmDE	1.3	EpRAm	1990.34	EpDEm	1989.75
Num	7	Q RAmdeg	0.5	Q DEmdeg	0.7	Q pmRA	0.5
Q pmDE	0.7	BTmag	9.856	E BTmag	0.028	VTmag	9.056
E VTmag	0.020	Prox	999	TYC	T	HIP	9121
CCDM		RAdeg	29.39442750	DEdeg	42.07693417	EpRA 1990	1.77
EpDE 1990	1.68	E RAdeg	12.4	E DEdeg	13.7	Posflg
Corr	0.0

Hipparcos

Catalog	H	HIP	9121	Proxy		RAhms	01 57 34.65
DEdms	+42 04 37.0	Vmag	9.01	VarFlag		R Vmag	H
RAdeg	29.3944	DEdeg	42.077	AstroRef		Plx	12.95
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual	S	M HIP
Theta		Rho		HD		BD	BD+41 379
CD		CP		Dm number	+41 379	VIred	0.77
SpType	G0	R SpType		Coord arcsec 2000	015734.65+420437.0

Hipparcos 2

HIP	9121	Sn	5	So	0	Nc	1
RArad	0.5130285103	DErad	0.7343813406	Plx	14.45	PmRA	284.4
PmDE	-102.01	E RArad	1.09	E DErad	0.85	E Plx	1.35
E pmRA	1.16	E pmDE	1.07	Hpmag	9.1437	E Hpmag	0.0016
SHp	0.016	VA	0	BV	0.72	E BV	0.015
VI	0.77

01576+4205 B

Componente originario normalizzato	AB		Coord arcsec 2000	015734.87+420436.1		Mag	10.3		Calc delta mag	0.9
Calc coord	yes