18517+5116 ES 788 (HD 234730)

18^h 51^m 39.23^s +51° 15' 50.7" P.A. 317.00 sep 3.3 mag 9.41,11.99 Sp G5 dist. 228.83 pc (746.44 l.y.)

Coord 2000	18517+5116	Discov num	ES 788	Comp		Coord arcsec 2000	18 51 39.23 +51 15 50.7
Date first	1909	Date last	2020	Obs	13
Pa first	317	Pa last	317.3	P.A. Now (θ)	317.3°
Sep first	3.1	Sep last	3.28	Sep. Now (ρ)	3.28"
Mag pri	9.41	Mag sec	11.99	delta mag (ΔM)	2.58	Spectral class	G5 (yellow)
Pri motion ra	+018	Sec motion ra	+016
Pri motion dec	+020	Sec motion dec	+025
Notes

rPM=0.181 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 234730	Constellation	Draco	SAO	31216	HIP	92556
Tycho2	3552-00978-1	Gaia DR2	2144499440301348480	HD	234730	BD	BD+51 2441
Distance	228.83	Distance ly	746.44

WDS 18517+5116 ES 788 (HD 234730) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Es_1901	Mb -	Espin, T.E.	1901AN....155..321E
Es_1901		AN 155, 321, 1901 (ES 1 - 39)
Es_1902a	Ma -	Espin, T.E.	1902AN....158..241E
Es_1902a	+Mb	AN 158, 241, 1902 (ES 40 - 112)
Es_1902b	Mb -	Espin, T.E.	1902MNRAS..62..528E
Es_1902b		MNRAS 62, 528, 1902
Es_1902c	Mb j	Espin, T.E.	1902MNRAS..62..402E
Es_1902c		MNRAS 62, 402, 1902
Es_1903	Mb -	Espin, T.E.	1903MNRAS..63..172E
Es_1903		MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a	-	Espin, T.E.	1904MNRAS..64..238E
Es_1904a		MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905)	1905MNRAS..65..710E
Es_1904b	Mb -	Espin, T.E.	1904MNRAS..64..675E
Es_1904b		MNRAS 64, 675, 1904
Es_1905	Mb -	Espin, T.E.	1905MNRAS..65..710E
Es_1905		MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a	Mb -	Espin, T.E.	1906MNRAS..66..141E
Es_1906a		MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b	Mb -	Espin, T.E.	1906MNRAS..66..430E
Es_1906b		MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C	Mb -	Espin, T.E.	1906QB821.B972.....
Es_1906C		cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D	Mb -	Espin, T.E.	1906MmRAS..56....1L
Es_1906D		cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a	Mb j	Espin, T.E.	1907MNRAS..67..190E
Es_1907a		MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b	Mb -	Espin, T.E.	1907MNRAS..67..495E
Es_1907b		MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a	Mb j	Espin, T.E.	1908MNRAS..68..202E
Es_1908a		MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b	Mb -	Espin, T.E.	1908MNRAS..68..523E
Es_1908b		MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c	-	Espin, T.E.	1908JRASC...2..248E
Es_1908c		JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909)	1909MNRAS..69..218E
Es_1909a	Mb j	Espin, T.E.	1909MNRAS..69..218E
Es_1909a		MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b	Mb j	Espin, T.E.	1909MNRAS..69..604E
Es_1909b		MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a	Mb -	Espin, T.E.	1910MNRAS..70..237E
Es_1910a		MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b	Mb -	Espin, T.E.	1910MNRAS..70..541E
Es_1910b		MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911	Mb -	Espin, T.E.	1911MNRAS..71..217E
Es_1911		MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912	Mb -	Espin, T.E.	1912MNRAS..72..191E
Es_1912		MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913	Mb j	Espin, T.E.	1913MNRAS..73..162E
Es_1913		MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914	Mb j	Espin, T.E.	1914MNRAS..74..244E
Es_1914		MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a	Mb -	Espin, T.E.	1915MNRAS..75..203E
Es_1915a		MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b	Mb -	Espin, T.E.	1915MNRAS..75..555E
Es_1915b		MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c	Mb -	Espin, T.E.	1915MNRAS..76..210E
Es_1915c		MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917	Mb -	Espin, T.E.	1917MNRAS..77..236E
Es_1917		MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918	Mb j	Espin, T.E.	1918MNRAS..78..189E
Es_1918		MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919	Mb -	Espin, T.E.	1919MNRAS..79..211E
Es_1919		MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920	Mb -	Espin, T.E.	1920MNRAS..80..329E
Es_1920		MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921	Mb j	Espin, T.E.	1921MNRAS..81..232E
Es_1921		MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922	Mb -	Espin, T.E.	1922MNRAS..82..187E
Es_1922		MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923	Mb -	Espin, T.E.	1923MNRAS..83..154E
Es_1923		MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924	Mb -	Espin, T.E.	1924MNRAS..84..162E
Es_1924		MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a	Mb -	Espin, T.E.	1925MNRAS..85..276E
Es_1925a		MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b	Mb -	Espin, T.E.	1925MNRAS..86...79E
Es_1925b		MNRAS 86, 79, 1925
Es_1926	Mb -	Espin, T.E.	1926MNRAS..86..131E
Es_1926		MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927	Mb -	Espin, T.E.	1927MNRAS..87..215E
Es_1927		MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928	Mb -	Espin, T.E.	1928MNRAS..88..185E
Es_1928		MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929	Mb -	Espin, T.E.	1929MNRAS..89..268E
Es_1929		MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930	Mb -	Espin, T.E.	1930MNRAS..90..317E
Es_1930		MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931	Mb -	Espin, T.E.	1931MNRAS..91..294E
Es_1931		MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a	Mb -	Espin, T.E.	1932MNRAS..92..214E
Es_1932a		MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B	Mb -	Espin, T.E.	1932QB821.A43......
Es_1932B		cited in ADS (Aitken Double Star Cat.), 1932
Es_1933	Mb -	Espin, T.E.	1933MNRAS..93..192E
Es_1933		MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A	Mb -	Espin, T.E.	1937AnLei..18....1S
Es_1937A		cited by Strand (Ann. Sterrew. Leiden 18, 1937)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18517+5116	ES 788		1993	7	319	3.6	9.41	11.99	G5		185139.23+511550.7
18517+5116	ES 788		2017	9	319	3.4	9.41	11.99	G5		185139.23+511550.7
18517+5116	ES 788		2019	11	321	3.3	9.41	11.99	G5		185139.23+511550.7
18517+5116	ES 788		2020	12	317	3.3	9.41	11.99	G5		185139.23+511550.7

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

WDS 18517+5116 ES 788 (HD 234730) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18517+5116 ES 788 (HD 234730) : MEASURES

No records found.

WDS 18517+5116 (HD 234730) : 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 18517+5116 (HD 234730) : ALADIN DSS IMAGE @ 18^h 51^m 39.23^s +51° 15' 50.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18517+5116 ES 788 (HD 234730) : 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		18517+5116	ES 788		317	3.3
Show		18521+5120	STF2416	AB	157	20.3	7
Show		18521+5120	STF2416	AC	39	122.5	7
Show		18515+5124	SMR 76		315	5.0	9
Show		18527+5135	COU2517		109	0.9	23
Show		18526+5140	TDT1102		95	2.0	26
Show		18496+5048	UC 3686		24	48.1	35
Show		18495+5157	UC 3685		147	73.5	46
Show		18540+5027	AZC 178		224	18.8	55
Show		18512+5210	BEM 35		156	17.2	55
Show		18466+5142	HU 756		263	1.0	55
Show		18456+5119	KPP4119	AB	24	18.5	57
Show		18571+5143	SHY 749		208	999.9	58
Show		18577+5100	RAO 402		62	1.6	59
Show		18583+5114	KPP 430		144	4.7	63
Show		18461+5212	MLR 637		102	0.8	76
Show		18448+5201	HU 755		124	0.6	79
Show		18567+5014	JNN 153		324	23.2	79
Show		18586+5210	MLR 638		132	0.3	85
Show		19011+5121	ES 789		264	4.5	90
Show		18459+5228	RAO 398		190	2.7	90
Show		18558+5240	ES 650	AB	329	4.6	93
Show		18558+5240	ES 650	AC	197	26.7	93
Show		18417+5108	HU 754		93	1.3	94
Show		19002+5207	ES 651		138	5.1	94
Show		18414+5150	SLE 239		98	13.2	102
Show		18516+5259	TRN 3	AB	101	1.1	103
Show		18516+5259	LEP 90	AC	327	206.5	103
Show		19020+5153	LDS4804		227	42.2	104
Show		18599+5008	DEA 356		13	16.2	104
Show		19025+5141	KPP4135		36	1.6	105
Show		19025+5142	TDT1193		91	1.2	105
Show		19027+5055	ES 977	AB	177	15.7	107
Show		18568+4941	DEA 156		201	7.8	107
Show		19030+5135	STF2451		84	1.9	108
Show		19002+5004	DEA 144		32	7.5	109
Show		19004+5006	KOI3263		275	0.8	109
Show		19028+5150	ES 2671		289	7.9	110
Show		18399+5106	ES 787		38	8.3	111
Show		19001+4959	KPP2132		128	17.4	112
Show		18585+4946	DEA 295		276	12.0	112
Show		18402+5048	COU2515		276	0.3	113
Show		19021+5216	HU 757	BC	168	0.2	115
Show		19021+5216	STF2450	A,BC	300	5.2	115
Show		18475+4926	BU 971	AB	215	0.5	117
Show		18475+4926	FOX 235	AB,D	131	91.4	117
Show		18475+4926	BU 971	AB,C	113	104.4	117
Show		18545+4920	DEA 165		240	8.3	119
Show		19027+5014	KOI 72		296	2.0	122
Show		19006+4948	KOI2376		213	0.4	123
Show		19024+5007	KOI1833	AB	76	0.0	124

WDS 18517+5116 : COMPONENTS

	A
B	pa=330.0° sep=2.78"

18517+5116 A

Componente originario normalizzato	AB	Name	HD 234730	Coord arcsec 2000	185139.23+511550.7	Mag	9.41
Spectral class	G5 (yellow)	PmRA	18.00	PmDE	20.0	SAO	31216
HIP	92556	Tycho2	3552-00978-1	HD	234730	BD	BD+51 2441

Tycho2

Tycho2	3552-00978-1	Pflag		RAmdeg	282.91345136	DEmdeg	51.26408736
PmRA	18.4	PmDE	19.7	E RAmdeg	12	E DEmdeg	12
E pmRA	1.3	E pmDE	1.4	EpRAm	1989.89	EpDEm	1989.92
Num	7	Q RAmdeg	2.6	Q DEmdeg	3.8	Q pmRA	2.6
Q pmDE	3.6	BTmag	9.863	E BTmag	0.024	VTmag	9.414
E VTmag	0.020	Prox	36	TYC	T	HIP	92556
CCDM	A	RAdeg	282.91339000	DEdeg	51.26403444	EpRA 1990	1.64
EpDE 1990	1.66	E RAdeg	12.6	E DEdeg	12.5	Posflg
Corr	0.0

SAO

SAO	31216	DelFlag		RA1950		PmRA1950	0.0018
DE1950		PmDE1950	0.032	Vmag	8.9	SpType	+++
Double code		Source	37	CatNum	5755	DM	BD+51 2441
DMcomp		BDsup		HD	234730	M HD	0
GC		RA1950rad	4.93248144	DE1950rad	0.89364859	PmRA2000	0.0024
PmDE2000	0.032

Hipparcos

Catalog	H	HIP	92556	Proxy	H	RAhms	18 51 39.21
DEdms	+51 15 50.5	Vmag	9.28	VarFlag		R Vmag	H
RAdeg	282.913	DEdeg	51.264	AstroRef	A	Plx	4.05
CCDM	18517+5116	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	B	M HIP	AB
Theta	319	Rho	3.575	HD	234730	BD	BD+51 2441
CD		CP		Dm number	+51 2441	VIred	0.48
SpType	G5	R SpType		Coord arcsec 2000	185139.21+511550.5

Hipparcos 2

HIP	92556	Sn	15	So	3	Nc	2
RArad	4.9377699813	DErad	0.894726223	Plx	4.37	PmRA	14.68
PmDE	26.74	E RArad	0.98	E DErad	1.12	E Plx	1.17
E pmRA	1.22	E pmDE	1.46	Hpmag	9.3689	E Hpmag	0.0038
SHp	0.026	VA	0	BV	1	E BV	0.495
VI	0.48

CCDM

Ccdm	18517+5116	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.74	DDEs	-8.9
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.3	Sp	G5	PmNote	*
PmRA	19	PmDE	28	Dm number	+51 2441	Cat1	BD
Name2	+51 1265	Cat2	AGK2/3	HD	234729	M HD
ADS BDS	A11780	M ADS BDS		N IDS		IDS	18492N5108A
HIC	92556

18517+5116 B

Componente originario normalizzato	AB		Coord arcsec 2000	185139.08+511553.1		Mag	11.99		PmRA	16.00
PmDE	25.0		Calc delta mag	2.58		Calc coord	yes

CCDM

Ccdm	18517+5116	RComp		Comp	B	Note1
Note2		Discov num	ES 788	DRAs		DDEs
R dRAs		Year	1909	Theta	318	Rho	3.2
Obs	3	Vmag	10.3	Sp	A0	PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD	234730	M HD
ADS BDS	A11780	M ADS BDS		N IDS		IDS	18492N5108B
HIC	92556