20448+3542 SEI 1234

20^h 44^m 50.74^s +35° 41' 49.0" P.A. 127.00 sep 19.1 mag 10.47,11.06

Coord 2000	20448+3542	Discov num	SEI1234	Comp		Coord arcsec 2000	20 44 50.74 +35 41 49.0
Date first	1896	Date last	2015	Obs	15
Pa first	132	Pa last	127.3	P.A. Now (θ)	127.3°
Sep first	18.7	Sep last	19.124	Sep. Now (ρ)	19.124"
Mag pri	10.47	Mag sec	11.06	delta mag (ΔM)	0.59	Spectral class
Pri motion ra	-003	Sec motion ra	+003
Pri motion dec	-004	Sec motion dec	-001
Notes

rPM=1.342

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2699-00866-1

Gaia DR2

1870345699221680768

WDS 20448+3542 SEI 1234 : 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
20448+3542	SEI1234		1999	8	128	19.0	10.47	11.06		D	204450.74+354149.0
20448+3542	SEI1234		2002	9	128	19.1	10.47	11.06		D	204450.74+354149.0
20448+3542	SEI1234		2010	10	128	18.9	10.47	11.06			204450.74+354149.0
20448+3542	SEI1234		2015	11	127	19.1	10.47	11.06			204450.74+354149.0

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WDS 20448+3542 SEI 1234 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20448+3542 SEI 1234 : MEASURES

No records found.

WDS 20448+3542 : VIRTUAL EYEPIECE

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WDS 20448+3542 : ALADIN DSS IMAGE @ 20^h 44^m 50.74^s +35° 41' 49.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20448+3542 SEI 1234 : 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		20448+3542	SEI1234		127	19.1	1
Show		20452+3531	SEI1237		272	26.1	12
Show		20451+3529	COU1809		101	0.7	14
Show		20462+3546	SEI1243	AB	203	16.2	18
Show		20462+3546	TDT2529	Aa,Ab	218	0.6	18
Show		20450+3600	ALI 204		307	11.5	18
Show		20449+3524	SEI1235		77	9.4	19
Show		20434+3535	ISM 5	AB	145	0.0	19
Show		20434+3535	EVS 44	AC	96	12.9	19
Show		20434+3535	EVS 44	AD	298	14.8	19
Show		20460+3554	TDT2525		70	0.6	19
Show		20462+3533	ES 2252	AB	294	4.2	20
Show		20462+3533	LMP 18	AB,C	82	26.0	20
Show		20462+3533	LMP 18	AB,D	85	35.5	20
Show		20456+3521	TDT2520		16	0.4	23
Show		20465+3550	ES 2196		70	5.6	23
Show		20460+3601	SEI1242		214	23.6	24
Show		20430+3555	HJ 1568		44	11.2	27
Show		20471+3545	SEI1247		78	25.6	29
Show		20435+3609	ES 2195	AB	4	20.7	32
Show		20435+3609	ES 2195	BC	91	1.8	32
Show		20444+3617	GII 53		358	0.3	36
Show		20464+3511	COU1810		183	0.2	36
Show		20423+3601	TDT2481		43	0.7	37
Show		20418+3553	HJ 1560	AB	248	12.8	39
Show		20418+3553	HJ 1560	AC	74	24.3	39
Show		20481+3554	SEI1252		115	17.3	42
Show		20465+3504	GRV 379		162	57.1	44
Show		20485+3550	SEI1254		20	22.3	46
Show		20422+3510	POP 9		342	4.5	47
Show		20462+3628	TDT2528		4	1.9	49
Show		20414+3515	COU1964		130	1.0	49
Show		20485+3608	SEI1253		83	24.1	52
Show		20411+3516	COU1963	AB		0.2	53
Show		20411+3516	COU1963	AB,C	41	1.8	53
Show		20466+3452	SEI1246		58	18.9	55
Show		20466+3451	SEI1245		5	23.1	55
Show		20424+3455	COU1965		278	0.4	56
Show		20406+3603	SEI1213		243	29.3	56
Show		20494+3548	SEI1262		301	6.1	56
Show		20417+3622	SEI1217		245	15.1	57
Show		20474+3629	MCA 63	Aa,Ab	46	0.1	57
Show		20474+3629	STT 413	AB	1	0.9	57
Show		20474+3629	S 765	AC	106	82.8	57
Show		20474+3629	FYM 126	AF	119	52.0	57
Show		20474+3629	FYM 126	CD	112	9.4	58
Show		20474+3629	FYM 126	CE	207	40.1	58
Show		20479+3456	TDT2545		195	2.5	60
Show		20401+3551	SEI1211		149	20.4	60
Show		20489+3503	SEI1257	AB	215	17.9	62
Show		20423+3637	SEI1224		161	25.2	63

WDS 20448+3542 : COMPONENTS

	A
B	pa=133.2° sep=16.94"

20448+3542 A

Componente originario normalizzato	AB		Coord arcsec 2000	204450.74+354149.0		Mag	10.47		PmRA	-3.00
PmDE	-4.0		Tycho2	2699-00866-1

Tycho2

Tycho2	2699-00866-1	Pflag		RAmdeg	311.21144462	DEmdeg	35.69693647
PmRA	5.0	PmDE	-1.8	E RAmdeg	22	E DEmdeg	21
E pmRA	1.4	E pmDE	1.4	EpRAm	1986.81	EpDEm	1987.81
Num	7	Q RAmdeg	2.8	Q DEmdeg	1.6	Q pmRA	2.8
Q pmDE	1.7	BTmag	10.697	E BTmag	0.037	VTmag	10.468
E VTmag	0.041	Prox	189	TYC	T	HIP
CCDM		RAdeg	311.21142194	DEdeg	35.69694222	EpRA 1990	1.66
EpDE 1990	1.74	E RAdeg	26.2	E DEdeg	22.6	Posflg
Corr	0.1

CCDM

Ccdm	20448+3542	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.76	DDEs	-10.9
R dRAs	65	Year		Theta		Rho
Obs	2	Vmag	9.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20409N3520A
HIC

20448+3542 B

Componente originario normalizzato	AB		Coord arcsec 2000	204451.75+354137.4		Mag	11.06		PmRA	3.00
PmDE	-1.0		Tycho2	2699-00542-1		Calc delta mag	0.59		Calc coord	yes

Tycho2

Tycho2	2699-00542-1	Pflag		RAmdeg	311.21662214	DEmdeg	35.69375565
PmRA	12.7	PmDE	3.8	E RAmdeg	43	E DEmdeg	38
E pmRA	2.0	E pmDE	1.9	EpRAm	1981.72	EpDEm	1982.89
Num	7	Q RAmdeg	2.3	Q DEmdeg	1.3	Q pmRA	2.3
Q pmDE	1.3	BTmag	12.342	E BTmag	0.164	VTmag	11.064
E VTmag	0.072	Prox	189	TYC		HIP
CCDM		RAdeg	311.21658361	DEdeg	35.69376639	EpRA 1990	1.68
EpDE 1990	1.74	E RAdeg	59.0	E DEdeg	52.1	Posflg
Corr	0.1

CCDM

Ccdm	20448+3542	RComp		Comp	B	Note1
Note2		Discov num	SEI1234	DRAs	3.97	DDEs	-22.6
R dRAs	65	Year	1896	Theta	130	Rho	18.6
Obs	1	Vmag	11.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20409N3520B
HIC