20446+0854 LDS 1046

20^h 44^m 30.72^s +08° 54' 11.0" P.A. 344.00 sep 15.0 mag 11.06,12.11 Sp M1.5V+M4V

Coord 2000	20446+0854	Discov num	LDS1046	Comp		Coord arcsec 2000	20 44 30.72 +08 54 11.0
Date first	1936	Date last	2016	Obs	26
Pa first	342	Pa last	344.4	P.A. Now (θ)	344.4°
Sep first	16.0	Sep last	15.031	Sep. Now (ρ)	15.031"
Mag pri	11.06	Mag sec	12.11	delta mag (ΔM)	1.05	Spectral class	M1.5V+M4V (red/red)
Pri motion ra	+216	Sec motion ra	+216
Pri motion dec	+037	Sec motion dec	+037
Notes	V (Proper motion indicates physical)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Gaia DR2

1750816656275568000

WDS 20446+0854 LDS 1046 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
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
20446+0854	LDS1046		1953	2	344	15.5	11.27	12.54			204439.73+085508.1
20446+0854	LDS1046		2000	3	344	15.1	11.06	12.11			204430.72+085411.0
20446+0854	LDS1046		2012	13	344	15.1	11.06	12.11	M1.5V+M4V		204430.72+085411.0
20446+0854	LDS1046		2015	15	344	15.1	11.06	12.11	M1.5V+M4V		204430.72+085411.0
20446+0854	LDS1046		2016	16	344	15.0	11.06	12.11	M1.5V+M4V		204430.72+085411.0

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WDS 20446+0854 LDS 1046 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20446+0854 LDS 1046 : MEASURES

No records found.

WDS 20446+0854 : VIRTUAL EYEPIECE

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WDS 20446+0854 : ALADIN DSS IMAGE @ 20^h 44^m 30.72^s +08° 54' 11.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20446+0854 LDS 1046 : 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		20446+0854	LDS1046		344	15.0
Show		20457+0838	A 1210		247	4.0	25
Show		20462+0822	SKF1867		357	6.1	41
Show		20468+0821	GWP2998		50	104.9	48
Show		20478+0857	UC 4290		5	86.8	49
Show		20473+0924	GWP2999		356	110.7	52
Show		20454+0952	HEI 589		257	1.8	60
Show		20478+0818	UC 4291		7	46.1	61
Show		20397+0910	UC 4248		329	36.4	73
Show		20457+1017	OSO 134	AB	44	11.1	85
Show		20457+1017	OSO 134	AC	45	19.4	85
Show		20468+0733	GAA 8		1	0.0	88
Show		20504+0834	UC 4306		296	42.5	90
Show		20507+0859	TDT2574		142	1.4	92
Show		20384+0838	WIS 339		24	999.9	93
Show		20504+0822	KPP4214		86	4.3	93
Show		20422+0724	J 571		255	3.9	96
Show		20501+0802	GWP3003		228	21.2	99
Show		20386+0950	OL 218		274	5.5	104
Show		20426+0714	TDT2489		232	0.4	105
Show		20388+0750	TDT2448		28	0.6	106
Show		20457+0709	BU 834		134	2.4	107
Show		20391+1005	STT 533	AB	278	46.3	107
Show		20391+1005	STT 533	AC	101	214.6	107
Show		20386+1000	BRT2187		162	5.1	110
Show		20379+0951	GRV 365		105	28.1	113
Show		20409+1035	STF2713		62	5.1	114
Show		20380+1011	HDS2945		79	0.4	124
Show		20487+0706	J 3223		307	2.7	124
Show		20473+1052	LEP 97		351	14.7	125
Show		20516+0747	SKF1868		313	57.7	125
Show		20442+0648	SKF2552	BC	343	11.4	127
Show		20442+0648	SKF2552	AB	60	17.6	127
Show		20442+0648	SKF2552	AC	31	23.1	127
Show		20417+1053	UC 4260		155	39.5	127
Show		20443+1101	BPM2242		127	30.4	127
Show		20416+1058	J 192		138	5.1	130
Show		20421+0648	GWP2987		295	266.1	131
Show		20533+0919	A 1214		171	3.7	133
Show		20516+0734	A 612		7	2.0	133
Show		20452+1108	BPM2254		231	96.7	135
Show		20537+0833	GWP3013		15	7.0	138
Show		20521+1014	A 1212		11	0.6	139
Show		20439+1113	BPM2239		101	71.9	140
Show		20531+0956	GWP3011		254	82.6	142
Show		20383+1043	BU 1491		87	3.2	144
Show		20478+1109	BPM2267		58	48.7	144
Show		20440+1118	UC 4272		354	60.1	145
Show		20537+0942	LDS4859		318	10.7	145
Show		20364+0733	GWP2971		84	8.6	145
Show		20391+1055	UC 4243		50	16.2	146

WDS 20446+0854 : COMPONENTS

	A
B	pa=344.6° sep=15.02"

20446+0854 A

Componente originario normalizzato	AB		Coord arcsec 2000	204430.72+085411.0		Mag	11.06		Spectral class	M1.5V (red)
PmRA	216.00		PmDE	37.0

20446+0854 B

Componente originario normalizzato	AB		Coord arcsec 2000	204430.45+085425.5		Mag	12.11		Spectral class	M4V (red)
PmRA	216.00		PmDE	37.0		Calc delta mag	1.05		Calc coord	yes