15158+5056 STTA 137 (HD 135944)

15^h 15^m 50.71^s +50° 56' 18.4" P.A. 101.00 sep 67.2 mag 6.56,8.94 Sp G5 dist. 61.84 pc (201.72 l.y.)

Coord 2000	15158+5056	Discov num	STTA137	Comp		Coord arcsec 2000	15 15 50.71 +50 56 18.4
Date first	1876	Date last	2015	Obs	36
Pa first	107	Pa last	101	P.A. Now (θ)	101°
Sep first	75.8	Sep last	67.169	Sep. Now (ρ)	67.169"
Mag pri	6.56	Mag sec	8.94	delta mag (ΔM)	2.38	Spectral class	G5 (yellow)
Pri motion ra	+025	Sec motion ra	-024
Pri motion dec	-046	Sec motion dec	+012
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=1.45

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 135944	Constellation	Bootes	SAO	29464	HIP	74690
Tycho2	3488-01292-1	Gaia DR2	1595705763509064832	HD	135944	GC	20540
BD	BD+51 1990	Distance	61.84	Distance ly	201.72

WDS 15158+5056 STTA 137 (HD 135944) : NOTES

discov_num	notes	refcode
STTA137	B is BD+51@1992.

REFERENCES

refcode	metd	author	reference
STTA		(O. Struve DD - Appendix list)	...................
Stt1864	Ma -	Struve, O.	1864MNRAS..24..149S
Stt1864		MNRAS 24, 149, 1864
Stt1866	orb -	Struve, O.	.
Stt1866		Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874	orb -	Struve, O.	.
Stt1874		Compte Rendus 79, 1467, 1874
Stt1875	orb -	Struve, O.	1875MNRAS..35..367S
Stt1875		MNRAS 35, 367, 1875
Stt1878	Ma -	Struve, O.	1878ObPul...9....1S
Stt1878		Pulkova Observations 9, 1, 1878
Stt1879A	Ma -	Struve, O.	1879Obs.....2..304G
Stt1879A		cited by Gledhill (Obs 2, 304, 1879)
Stt1879B	Ma -	Struve, O.	1879Obs.....3..245G
Stt1879B		cited by Gledhill (Obs 3, 245, 1879)
Stt1879C	Ma -	Struve, O.	1879Obs.....2..344G
Stt1879C		cited by Gledhill (Obs 2, 344, 1879)
Stt1880A	Ma -	Struve, O.	1880Obs.....2..605H
Stt1880A		cited by Hunt (Obs. 3, 605, 1880)
Stt1880B	Ma -	Struve, O.	1880Obs.....3..535G
Stt1880B		cited by Gledhill (Obs 3, 535, 1880)
Stt1880C	Ma -	Struve, O.	1880MNRAS..40..497B
Stt1880C		cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A	Ma -	Struve, O.	1884AReg...22..216S
Stt1884A		cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a	Ma j	Struve, O.	1893ObPul..10....1S
Stt1893a		Pulkova Obs. Observations 10, 1, 1893
Stt1906A	Ma -	Struve, O.	1906MmRAS..56....1L
Stt1906A		cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B	Ma j	Struve, O.	1906QB821.B972.....
Stt1906B		cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A	Ma -	Struve, O.	1908MNRAS..68..465B
Stt1908A		cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A	Ma -	Struve, O.	1913QB811.B8.......
Stt1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A	Ma -	Struve, O.	1914AN....198..107R
Stt1914A		cited by Rabe (AN 198, 107, 1914)
Stt1932A	Ma -	Struve, O.	1932QB821.A43......
Stt1932A		cited in ADS (Aitken Double Star Cat., 1932)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15158+5056	STTA137		2004	29	102	68.1	6.56	8.94	G5	NLD	151550.71+505618.4
15158+5056	STTA137		2008	30	101	67.6	6.56	8.94	G5	NLD	151550.71+505618.4
15158+5056	STTA137		2011	31	102	67.3	6.56	8.94	G5	NLD	151550.71+505618.4
15158+5056	STTA137		2015	34	101	67.2	6.56	8.94	G5	NL	151550.71+505618.4

If you need more information about this double, apply for a data request form to the WDS.

WDS 15158+5056 STTA 137 (HD 135944) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15158+5056 STTA 137 (HD 135944) : MEASURES

No records found.

WDS 15158+5056 (HD 135944) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 15158+5056 (HD 135944) : ALADIN DSS IMAGE @ 15^h 15^m 50.71^s +50° 56' 18.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15158+5056 STTA 137 (HD 135944) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		15158+5056	STTA137		101	67.2
Show		15149+5048	ES 775		220	6.7	13
Show		15150+5125	CVR1623		280	4.6	30
Show		15146+5019	BEM 17		119	23.1	39
Show		15210+5046	UC 2988		292	17.0	50
Show		15184+5149	NSN 788		274	4.6	58
Show		15091+5111	TDS9416		211	0.5	65
Show		15185+5159	BEM 18		13	8.6	68
Show		15201+5158	CHR 46		228	0.3	73
Show		15076+5056	ES 774		230	3.5	79
Show		15085+5002	COU2195		14	0.2	89
Show		15198+5217	ARY 53		149	107.1	89
Show		15084+4958	SKF 723		48	1.9	93
Show		15132+5228	CVR1621		280	4.8	95
Show		15097+4942	BEM 16		67	25.4	95
Show		15064+5135	SKF 720		280	1.1	97
Show		15141+5235	HU 145		131	2.1	101
Show		15078+5210	SLN 29		144	5.0	106
Show		15089+4934	LDT 9		337	0.3	106
Show		15271+5127	TDS9521		135	3.3	111
Show		15059+5159	CVR 776		314	9.6	112
Show		15198+5245	ES 741	AB	234	8.9	115
Show		15198+5245	FYM 225	AC	139	3.9	115
Show		15239+4931	HU 649		49	4.5	115
Show		15195+5248	SLW1081		285	17.0	117
Show		15124+5256	ARY 52	AB	330	148.3	124
Show		15062+5225	HDS2126		295	0.6	127
Show		15035+5153	TDS9385		268	0.7	129
Show		15290+5027	HU 651	AB		0.9	129
Show		15290+5027	GII 221	Aa,Ab	303	0.1	129
Show		15264+5221	SLW1092		19	71.3	130
Show		15292+5027	CBL 489		205	69.6	131
Show		15092+5257	BEM9020		5	13.5	136
Show		15018+5128	ES 739		161	1.9	137
Show		15204+5309	HU 147		287	0.6	139
Show		15284+4940	HJ 2784	AB	236	16.7	143
Show		15284+4940	HJ 2784	AC	9	41.6	143
Show		15284+4940	ABH 85	AD	3	31.3	143
Show		15204+4840	CVR 784		155	7.9	144
Show		15263+4913	HJ 2781		329	20.6	144
Show		15127+4835	ES 2648	AB	339	25.9	145
Show		15127+4835	POP1220	AC	305	0.7	145
Show		15127+4835	CTT 14	AD	60	110.8	145
Show		15214+5312	GRV1209		137	10.9	146
Show		15145+4831	LDS4539		11	367.9	146
Show		15200+5324	TDS9490		59	0.5	153
Show		15200+5326	WIS 283		280	779.4	155
Show		15169+5331	KPP1078		192	8.6	156
Show		15279+4909	SLW1095		345	55.1	158
Show		15116+5333	RAO 331	BD	83	3.0	160
Show		15187+5334	ES 740	AB	38	3.2	160

WDS 15158+5056 : COMPONENTS

	A
B	pa=107.1° sep=43.48"

15158+5056 A

Componente originario normalizzato	AB	Name	HD 135944	Coord arcsec 2000	151550.71+505618.4	Mag	6.56
Spectral class	G5 (yellow)	PmRA	25.00	PmDE	-46.0	SAO	29464
HIP	74690	Tycho2	3488-01292-1	HD	135944	GC	20540
BD	BD+51 1990

Tycho2

Tycho2	3488-01292-1	Pflag		RAmdeg	228.96127233	DEmdeg	50.93845768
PmRA	24.0	PmDE	-45.6	E RAmdeg	4	E DEmdeg	4
E pmRA	0.9	E pmDE	1.0	EpRAm	1991.35	EpDEm	1991.44
Num	15	Q RAmdeg	1.0	Q DEmdeg	0.5	Q pmRA	1.0
Q pmDE	0.6	BTmag	7.528	E BTmag	0.015	VTmag	6.562
E VTmag	0.010	Prox	686	TYC	T	HIP	74690
CCDM		RAdeg	228.96118444	DEdeg	50.93856278	EpRA 1990	1.69
EpDE 1990	1.71	E RAdeg	3.8	E DEdeg	3.9	Posflg
Corr	-0.1

SAO

SAO	29464	DelFlag		RA1950		PmRA1950	0.0018
DE1950		PmDE1950	-0.051	Vmag	6.5	SpType	G5
Double code		Source	70	CatNum	20540	DM	BD+51 1990
DMcomp		BDsup		HD	135944	M HD	0
GC	20540	RA1950rad	3.98945108	DE1950rad	0.89225608	PmRA2000	0.0024
PmDE2000	-0.047

Hipparcos

Catalog	H	HIP	74690	Proxy		RAhms	15 15 50.68
DEdms	+50 56 18.8	Vmag	6.47	VarFlag		R Vmag	H
RAdeg	228.961	DEdeg	50.9386	AstroRef		Plx	16.52
CCDM	15159+5056	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	135944	BD	BD+51 1990
CD		CP		Dm number	+51 1990	VIred	0.86
SpType	G5	R SpType		Coord arcsec 2000	151550.68+505618.8

Hipparcos 2

HIP	74690	Sn	5	So	0	Nc	1
RArad	3.9961264604	DErad	0.8890457224	Plx	16.17	PmRA	24.95
PmDE	-45.53	E RArad	0.29	E DErad	0.26	E Plx	0.31
E pmRA	0.31	E pmDE	0.32	Hpmag	6.6224	E Hpmag	0.0006
SHp	0.007	VA	0	BV	0.854	E BV	0.005
VI	0.87

15158+5056 B

Componente originario normalizzato	AB		Coord arcsec 2000	151555.11+505605.6		Mag	8.94		PmRA	-24.00
PmDE	12.0		Calc delta mag	2.38		Calc coord	yes