12313+5507 BAG 50 (NO UMa)

12^h 31^m 18.92^s +55° 07' 07.6" P.A. 255.00 sep 0.1 mag 8.20,10.60 Sp K2V+K6.5V dist. 25.1 pc (81.88 l.y.)

Coord 2000	12313+5507	Discov num	BAG 50	Comp		Coord arcsec 2000	12 31 18.92 +55 07 07.6
Date first	2002	Date last	2019	Obs	29
Pa first	320	Pa last	255	P.A. Now (θ)	255°
Sep first	0.7	Sep last	0.079	Sep. Now (ρ)	0.079"
Mag pri	8.20	Mag sec	10.60	delta mag (ΔM)	2.4	Spectral class	K2V+K6.5V (yellow-orange/yellow-orange)
Pri motion ra	+107	Sec motion ra
Pri motion dec	-001	Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Var name	NO UMa	Constellation	Ursa Major	SAO	28414	HIP	61100
Tycho2	3844-00102-1	Gaia DR2	1571145907856592768	HD	109011	GL	GJ 1160
BD	BD+55 1536	Distance	25.1	Distance ly	81.88

ORBITAL ELEMENTS

Period (P)	3.514y	± 0.002	Periastron (T)	2013.55y	± 0.003	Semi-major axis (a)	102.3m	± 0.5
Eccentricity (e)	0.507	± 0.003	Inclination (i)	58.6°	± 0.3	Longitude of periastron (ω)	244.5°	± 0.4
Node (Ω)	177.6°	± 0.4	Notes	n		Reference	Mit2020
Equinox			Last observation			Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	175.7	0.094
2001	213.9	0.109
2002	280.1	0.071
2003	41.5	0.033
2004	195.3	0.118
2005	238.3	0.087
2006	326.6	0.073
2007	174.1	0.090
2008	212.8	0.110
2009	277.4	0.071
2010	30.8	0.038
2011	194.4	0.118
2012	236.6	0.089
2013	324.1	0.073
2014	172.4	0.087
2015	211.7	0.111
2016	274.8	0.071
2017	22.5	0.043
2018	193.4	0.118
2019	234.9	0.090
2020	321.5	0.072
2021	170.6	0.083
2022	210.6	0.112
2023	272.2	0.072
2024	15.8	0.047
2025	192.4	0.117
2026	233.2	0.091
2027	318.9	0.072
2028	168.5	0.080
2029	209.5	0.113
2030	269.6	0.073

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

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

WDS 12313+5507 BAG 50 (NO UMa) : NOTES

discov_num	notes	refcode
BAG 50	GJ 1160. Primary is the variable NO UMa.	Bag2013
	Arenou (2000) gives combined solution of astrometric orbits and DSBs.	Are2000
	Paper includes masses and distances.
	Schlieder et al. (2016) derive the following properties for A and B:
	spectral types K2V +/- 0.5 K6.5V +/- 0.5
	masses (Msun) 0.83 +/- 0.03 0.65 +/- 0.02
	Teff (K) 5020 +/- 50 4150 +/- 30
	log (L/Lsun) -0.48 +/- 0.03 -0.96 +/- 0.03.	SJE2016
	Improved resolved SB2 orbit for this pair.	Kie2018
	A: Teff = 5105 +/- 21 K, M = 0.834 +/- 0.017 \msun.
	B: Teff = 4175 +/- 35 K, M = 0.640 +/- 0.011 \msun.
	Orbital parallax = 38.82 +/- 0.23 mas.
	Age = 0.4 Gyr.

REFERENCES

refcode	metd	author	reference
Are2000	orb -	Arenou, F., Halbwachs, J.-L., Mayor, M., & Udry, S.	2000IAUS..200P.135A
Are2000		IAU Symp. 200, 135, 2000
Bag2013	S j	Balega, I.I., Balega, Yu.Yu., Gasanova, L.T., Dyachenko, V.V., Maksimov, A.F.,	2013AstBu..68...53B
Bag2013		Malogolovets, E.V., Rastegaev, D.A., & Shkhagosheva, Z.U.
Bag2013		Astrophys. Bull. 68, 53, 2013
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
Mit2020	S -	Mitrofanova, A., Dyachenko, V., Beskakotov, A., Balega, Y., Maksimov, A.,	2020AJ....159..266M
Mit2020		Rastegaev, D. & Komarinsky, S.
Mit2020		AJ 159, 266, 2020
SJE2016	A j	Schlieder, J.E., Skemer, A., Maire, A.-L., Desidera, S., Hinz, P.,	2016ApJ...818....1S
SJE2016	+C	Skrutskie, M.F., Leisenring, J., Bailey, V., Defrere, D., Esposito, S.,
SJE2016	Es	Strassmeier, K.G., Weber, M., et al.
SJE2016	+orb	ApJ 818, 1, 2016

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12313+5507	BAG 50		2006	8	5	0.1	8.21		K2V	N	123118.92+550707.6
12313+5507	BAG 50		2013	12	172	0.1	8.21		K2V	NO	123118.92+550707.6
12313+5507	BAG 50		2019	28	255	0.1	8.20	10.60	K2V+K6.5V	NO	123118.92+550707.6

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WDS 12313+5507 BAG 50 (NO UMa) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12313+5507 BAG 50 (NO UMa) : MEASURES

No records found.

WDS 12313+5507 (NO UMa) : VIRTUAL EYEPIECE

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WDS 12313+5507 (NO UMa) : ALADIN DSS IMAGE @ 12^h 31^m 18.92^s +55° 07' 07.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12313+5507 BAG 50 (NO UMa) : 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		12313+5507	BAG 50		255	0.1
Show		12318+5508	SKF2013		75	6.6	5
Show		12309+5453	STI2285		337	9.5	16
Show		12329+5448	A 1600	AB	8	0.9	24
Show		12329+5448	GII 188	Aa,Ab	137	0.1	24
Show		12339+5522	STI2286		86	11.5	27
Show		12272+5519	MLB1076		225	11.1	38
Show		12289+5556	TDS8406		256	1.7	53
Show		12308+5408	CBL 383		140	8.8	60
Show		12243+5433	A 1598		227	2.3	70
Show		12395+5516	BOY 6		7	0.2	71
Show		12227+5458	SLW 712		109	47.3	75
Show		12307+5352	ES 726	AB	157	9.4	76
Show		12307+5352	ES 726	AC	177	20.4	76
Show		12307+5352	ABH 78	AD	115	28.2	76
Show		12402+5503	STI2290	AB	246	13.5	77
Show		12352+5617	STI2287		81	16.2	78
Show		12339+5629	LDS1322		211	6.5	84
Show		12238+5410	STT 249	AB	257	0.4	87
Show		12238+5410	STT 249	AB,C	149	13.1	87
Show		12409+5545	SLW 756		117	10.1	90
Show		12313+5332	CVR1443		141	3.2	95
Show		12358+5635	STF1662		242	19.2	96
Show		12417+5543	SHY 64	AB	191	999.9	96
Show		12417+5543	SHY 64	AC	309	999.9	96
Show		12417+5543	SHY 64	AD	69	999.9	96
Show		12417+5543	SHY 236	AE	248	999.9	96
Show		12294+5333	LDS3046		354	21.4	97
Show		12352+5336	CBL 386		76	17.0	98
Show		12197+5523	HJ 2608		267	10.0	101
Show		12232+5621	MLB 67		136	8.5	102
Show		12358+5641	SLW 740		211	8.6	102
Show		12263+5333	KPP3869		132	1.9	104
Show		12426+5545	LDS3058		248	6.6	104
Show		12421+5415	LDS3056	AB	90	2.0	108
Show		12296+5656	LDS2644		162	36.7	110
Show		12362+5650	A 1601	AB	75	2.4	111
Show		12362+5650	GII 190	Aa,Ab	125	0.1	111
Show		12406+5629	MLB 169		310	2.0	114
Show		12193+5558	CVR 651		204	16.3	114
Show		12243+5322	SLW 717		33	27.1	122
Show		12189+5622	STF1630		171	2.5	129
Show		12418+5645	BWL 33	AB	8	9.0	132
Show		12418+5645	BWL 33	AC	239	12.4	132
Show		12418+5645	BWL 33	AD	241	22.8	132
Show		12439+5349	ES 729		227	8.8	135
Show		12150+5501	HJ 2605		311	21.9	140
Show		12478+5522	TDS8526		23	0.6	142
Show		12144+5506	HJ 2604		337	19.7	146
Show		12484+5509	NSN 634		140	2.2	147
Show		12319+5736	SLN 71		120	3.2	150

WDS 12313+5507 : COMPONENTS

	A
B	pa=244.9° sep=0.05"

12313+5507 A

Componente originario normalizzato	AB	Name	NO UMa	Coord arcsec 2000	123118.92+550707.6	Mag	8.2
Spectral class	K2V (yellow-orange)	PmRA	107.00	PmDE	-1.0	SAO	28414
HIP	61100	Tycho2	3844-00102-1	HD	109011	BD	BD+55 1536

Tycho2

Tycho2	3844-00102-1	Pflag		RAmdeg	187.82884346	DEmdeg	55.11884333
PmRA	107.8	PmDE	-0.5	E RAmdeg	6	E DEmdeg	5
E pmRA	1.2	E pmDE	1.4	EpRAm	1990.98	EpDEm	1991.28
Num	13	Q RAmdeg	0.5	Q DEmdeg	1.0	Q pmRA	0.5
Q pmDE	1.0	BTmag	9.293	E BTmag	0.017	VTmag	8.211
E VTmag	0.011	Prox	999	TYC	T	HIP	61100
CCDM		RAdeg	187.82840528	DEdeg	55.11884472	EpRA 1990	1.64
EpDE 1990	1.60	E RAdeg	5.5	E DEdeg	5.4	Posflg
Corr	-0.2

SAO

SAO	28414	DelFlag		RA1950		PmRA1950	0.0121
DE1950		PmDE1950	0	Vmag	8.3	SpType	K0
Double code		Source	38	CatNum	7191	DM	BD+55 1536
DMcomp		BDsup		HD	109011	M HD	0
GC		RA1950rad	3.26792104	DE1950rad	0.96682094	PmRA2000	0.0123
PmDE2000	0.005

Hipparcos

Catalog	H	HIP	61100	Proxy		RAhms	12 31 18.81
DEdms	+55 07 07.8	Vmag	8.08	VarFlag		R Vmag	H
RAdeg	187.828	DEdeg	55.1188	AstroRef		Plx	42.13
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag	X	Source		Qual		M HIP
Theta		Rho		HD	109011	BD	BD+55 1536
CD		CP		Dm number	+55 1536	VIred	0.93
SpType	K2V	R SpType		Coord arcsec 2000	123118.81+550707.8

Hipparcos 2

HIP	61100	Sn	1	So	2	Nc	1
RArad	3.2782238498	DErad	0.962005297	Plx	39.84	PmRA	102.71
PmDE	-25.22	E RArad	0.74	E DErad	0.77	E Plx	1.07
E pmRA	0.87	E pmDE	0.97	Hpmag	8.2267	E Hpmag	0.0013
SHp	0.015	VA	0	BV	0.941	E BV	0.001
VI	0.93

12313+5507 B

Componente originario normalizzato	AB		Coord arcsec 2000	123118.91+550707.6		Mag	10.6		Spectral class	K6.5V (yellow-orange)
Calc delta mag	2.4		Calc coord	yes