20544+3435 SEI 1304

20^h 54^m 20.37^s +34° 34' 28.8" P.A. 68.00 sep 21.0 mag 10.47,12.50

Coord 2000	20544+3435	Discov num	SEI1304	Comp		Coord arcsec 2000	20 54 20.37 +34 34 28.8
Date first	1896	Date last	2015	Obs	9
Pa first	69	Pa last	68.2	P.A. Now (θ)	68.2°
Sep first	20.0	Sep last	21.039	Sep. Now (ρ)	21.039"
Mag pri	10.47	Mag sec	12.50	delta mag (ΔM)	2.03	Spectral class
Pri motion ra	-005	Sec motion ra	+004
Pri motion dec	-007	Sec motion dec	+002
Notes

rPM=1.48

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2696-01586-1

Gaia DR2

1869565522688375680

WDS 20544+3435 SEI 1304 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		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
20544+3435	SEI1304		1999	3	69	21.0	10.47	12.50		D	205420.37+343428.8
20544+3435	SEI1304		2002	4	69	20.9	10.47	12.50		D	205420.37+343428.8
20544+3435	SEI1304		2010	5	69	21.1	10.47	12.50			205420.37+343428.8
20544+3435	SEI1304		2015	6	68	21.0	10.47	12.50			205420.37+343428.8

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WDS 20544+3435 SEI 1304 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20544+3435 SEI 1304 : MEASURES

No records found.

WDS 20544+3435 : VIRTUAL EYEPIECE

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WDS 20544+3435 : ALADIN DSS IMAGE @ 20^h 54^m 20.37^s +34° 34' 28.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20544+3435 SEI 1304 : 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		20544+3435	SEI1304		68	21.0
Show		20538+3431	TDT2611		160	2.1	8
Show		20543+3415	KPP3363	AB	275	49.6	20
Show		20540+3459	SEI1303		139	20.7	25
Show		20521+3439	RAO 521		-1	0.2	29
Show		20537+3512	SEI1298		15	28.2	38
Show		20536+3514	HO 146		46	0.4	41
Show		20522+3401	TDT2593		357	2.3	43
Show		20522+3513	HO 145		286	16.9	47
Show		20532+3349	TDT2605		301	0.8	48
Show		20564+3353	TDT2647		196	0.9	49
Show		20551+3523	SEI1310		281	29.3	50
Show		20502+3441	SEI1269		148	7.9	52
Show		20542+3528	GRV 394		6	71.0	54
Show		20568+3348	COU1812	AB	105	1.1	56
Show		20568+3348	DAM 220	AB,C	193	7.6	56
Show		20504+3406	GRV 387		254	26.4	57
Show		20498+3442	SEI1264		39	7.5	58
Show		20582+3510	COU1813		313	1.2	60
Show		20535+3534	SEI1295		32	9.6	61
Show		20592+3435	POP 27		157	1.5	61
Show		20593+3430	POP 28		5	2.9	62
Show		20493+3430	POP 51		347	6.6	63
Show		20562+3335	ES 2312		11	2.7	64
Show		20562+3538	HU 763		329	1.5	68
Show		20557+3540	SEI1316		24	12.3	68
Show		20490+3451	SEI1259		88	15.5	69
Show		20539+3326	BLL 52		59	186.6	69
Show		20488+3426	SEI1256		279	26.3	69
Show		20489+3449	SEI1258		351	25.1	70
Show		20561+3541	TDT2641		50	1.7	70
Show		20584+3344	COU1635		232	1.6	71
Show		20519+3327	GYL 26	AB	353	28.6	74
Show		20519+3327	WSI 47	AC	337	11.0	74
Show		20489+3503	SEI1257	AB	215	17.9	75
Show		20522+3544	HJ 1586		260	16.2	75
Show		20560+3546	COU2134		264	0.6	75
Show		21004+3426	FAR 1		104	46.4	75
Show		20539+3320	TDT2612		202	0.5	76
Show		20593+3520	TDT2676		23	0.8	77
Show		20503+3337	ES 2378		193	6.2	77
Show		20533+3319	LDS2933		146	9.0	77
Show		20520+3547	TDT2589		192	0.5	79
Show		20528+3320	LDS2932		107	9.1	79
Show		20499+3531	SEI1266		179	10.5	79
Show		20588+3530	SEI1342		100	4.1	79
Show		21000+3512	TDT2685		137	0.7	80
Show		21004+3411	BU 1329	AB	39	0.3	80
Show		21004+3411	BU 1329	AB,C	30	6.8	80
Show		20501+3534	TDT2567		125	0.4	80
Show		20520+3320	TDT2590		116	0.5	81

WDS 20544+3435 : COMPONENTS

	A
B	pa=64.1° sep=17.88"

20544+3435 A

Componente originario normalizzato	AB		Coord arcsec 2000	205420.37+343428.8		Mag	10.47		PmRA	-5.00
PmDE	-7.0		Tycho2	2696-01586-1

Tycho2

Tycho2	2696-01586-1	Pflag		RAmdeg	313.58490695	DEmdeg	34.57467965
PmRA	-2.0	PmDE	-7.5	E RAmdeg	21	E DEmdeg	18
E pmRA	1.9	E pmDE	1.9	EpRAm	1988.55	EpDEm	1989.98
Num	6	Q RAmdeg	2.1	Q DEmdeg	1.6	Q pmRA	2.2
Q pmDE	1.6	BTmag	10.675	E BTmag	0.033	VTmag	10.474
E VTmag	0.037	Prox	548	TYC	T	HIP
CCDM		RAdeg	313.58492472	DEdeg	34.57469694	EpRA 1990	1.66
EpDE 1990	1.77	E RAdeg	23.5	E DEdeg	19.1	Posflg
Corr	0.2

20544+3435 B

Componente originario normalizzato	AB		Coord arcsec 2000	205421.67+343436.6		Mag	12.5		PmRA	4.00
PmDE	2.0		Calc delta mag	2.03		Calc coord	yes