20173+6658 LDS 2450

20^h 17^m 20.91^s +66° 57' 21.7" P.A. 227.00 sep 13.2 mag 16.60,17.20

Coord 2000	20173+6658	Discov num	LDS2450	Comp		Coord arcsec 2000	20 17 20.91 +66 57 21.7
Date first	1953	Date last	2015	Obs	4
Pa first	224	Pa last	227	P.A. Now (θ)	227°
Sep first	13.0	Sep last	13.212	Sep. Now (ρ)	13.212"
Mag pri	16.60	Mag sec	17.20	delta mag (ΔM)	0.6	Spectral class
Pri motion ra	-103	Sec motion ra
Pri motion dec	+056	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Draco

Gaia DR2

2249585745162297984

WDS 20173+6658 LDS 2450 : NOTES

No records found.

DISCOVERER

idgroup	discov	author
1	LDS	Luyten p.m. catalog (from additional DD list)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20173+6658	LDS2450		1999	2	227	13.2	16.60	17.20		D	201720.91+665721.7
20173+6658	LDS2450		2010	3	227	13.4	16.60	17.20			201720.91+665721.7
20173+6658	LDS2450		2015	4	227	13.2	16.60	17.20			201720.91+665721.7

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

WDS 20173+6658 LDS 2450 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20173+6658 LDS 2450 : MEASURES

No records found.

WDS 20173+6658 : VIRTUAL EYEPIECE

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

WDS 20173+6658 : ALADIN DSS IMAGE @ 20^h 17^m 20.91^s +66° 57' 21.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20173+6658 LDS 2450 : 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		20173+6658	LDS2450		227	13.2	0
Show		20144+6705	MLB 297		213	2.7	19
Show		20223+6709	KPP4193		9	1.5	32
Show		20233+6710	LAW 19		224	1.1	38
Show		20246+6708	LDS2453		193	10.3	44
Show		20140+6736	MLB 296		284	3.2	44
Show		20185+6743	MLB 298		156	9.0	47
Show		20207+6609	SKF2610		187	13.0	53
Show		20194+6600	TDT2167		125	0.4	59
Show		20087+6730	SKF1244		184	97.9	60
Show		20274+6706	MLB 266		177	3.9	61
Show		20261+6616	LDS4844		74	237.5	67
Show		20290+6640	MLR 66		111	2.6	71
Show		20070+6618	STF2650		228	21.9	73
Show		20296+6648	MLR 67		250	0.6	73
Show		20302+6644	SKF2611		299	128.4	78
Show		20300+6726	KPP4203	AC	293	5.4	80
Show		20117+6542	TDT2071		65	0.8	83
Show		20185+6533	KPP 467		243	4.7	85
Show		20031+6721	MLB 294		155	3.3	87
Show		20284+6756	TDT2309		232	0.7	87
Show		20023+6706	SKF1242		13	20.8	89
Show		20183+6526	MLB 219		333	2.9	90
Show		20039+6754	MLB 295		305	7.3	100
Show		20229+6832	MLB 361		326	2.6	101
Show		20028+6752	LDS2447	AB	180	125.4	101
Show		20028+6752	LDS2447	AC	226	141.0	101
Show		20065+6817	TDT1984		39	1.6	101
Show		20333+6616	TDT2367		285	0.4	104
Show		20061+6538	TDT1975		274	0.8	105
Show		19593+6729	TDT1903		87	0.4	110
Show		20339+6801	MLB1089		354	9.2	114
Show		20005+6759	MLB 359	AB	284	4.9	115
Show		20005+6759	MLB 359	AC	326	30.9	115
Show		20055+6834	TDT1964		340	2.0	118
Show		20074+6511	HJL1102		123	126.7	122
Show		20276+6513	UC 4188		18	30.7	123
Show		20273+6846	HDS2925		91	0.7	123
Show		20333+6531	LDS2454		62	17.5	130
Show		20328+6526	KPP 474		81	3.7	132
Show		20023+6515	STI 941		96	11.7	138
Show		20369+6818	MLB 299		204	7.6	139
Show		20361+6523	STI 990		177	5.8	148
Show		20142+6429	STI 958		6	7.3	149
Show		20119+6431	STF2660		166	22.3	151
Show		20243+6927	LDS2452		157	6.9	156
Show		20015+6449	H 6 38	AB	171	193.1	161
Show		20049+6926	HDS2863	AB	3	0.9	164
Show		20171+6943	LDS1930		292	51.8	164
Show		20102+6419	STI 950		200	6.5	165
Show		20042+6434	BU 1479		46	43.0	165

WDS 20173+6658 : COMPONENTS

	A
B	pa=202.8° sep=9.77"

20173+6658 A

Coord arcsec 2000

201720.91+665721.7

Mag

16.6

PmRA

-103.00

PmDE

56.0

20173+6658 B

Coord arcsec 2000

201720.27+665712.7

Mag

17.2

Calc delta mag

0.6

Calc coord

yes