20344+3852 SEI 1172

20^h 34^m 27.66^s +38° 51' 30.2" P.A. 149.00 sep 21.8 mag 10.20,10.50

Coord 2000	20344+3852	Discov num	SEI1172	Comp		Coord arcsec 2000	20 34 27.66 +38 51 30.2
Date first	1895	Date last	2015	Obs	11
Pa first	147	Pa last	148.6	P.A. Now (θ)	148.6°
Sep first	21.7	Sep last	21.818	Sep. Now (ρ)	21.818"
Mag pri	10.20	Mag sec	10.50	delta mag (ΔM)	0.3	Spectral class
Pri motion ra	+002	Sec motion ra	-002
Pri motion dec	-005	Sec motion dec	-006
Notes

rPM=0.652

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

2064025840666576384

WDS 20344+3852 SEI 1172 : 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
20344+3852	SEI1172		1998	4	149	21.8	10.20	10.50		D	203427.66+385130.2
20344+3852	SEI1172		2002	5	149	21.8	10.20	10.50		D	203427.66+385130.2
20344+3852	SEI1172		2010	6	149	21.8	10.20	10.50			203427.66+385130.2
20344+3852	SEI1172		2015	7	149	21.8	10.20	10.50			203427.66+385130.2

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WDS 20344+3852 SEI 1172 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20344+3852 SEI 1172 : MEASURES

No records found.

WDS 20344+3852 : VIRTUAL EYEPIECE

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WDS 20344+3852 : ALADIN DSS IMAGE @ 20^h 34^m 27.66^s +38° 51' 30.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20344+3852 SEI 1172 : 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		20344+3852	SEI1172		149	21.8
Show		20348+3852	GRV 357		275	22.5	6
Show		20349+3849	SEI1176		11	19.9	6
Show		20341+3847	KPP4206		215	1.6	7
Show		20336+3854	KPP4205		80	2.6	11
Show		20349+3840	SEI1177		139	13.0	13
Show		20335+3858	SEI1166		73	17.0	13
Show		20357+3901	SEI1185		298	3.5	18
Show		20337+3835	A 1431		29	0.9	19
Show		20361+3852	SEI1189		36	2.2	20
Show		20330+3903	SEI1163		221	28.9	21
Show		20357+3908	COU2289		155	0.7	22
Show		20363+3854	MLB 953		9	6.0	22
Show		20351+3914	MLB 777		186	6.3	23
Show		20335+3913	SEI1168		118	19.4	24
Show		20332+3910	SEI1165		4	10.7	25
Show		20332+3911	CNT 6		205	6.6	25
Show		20324+3859	SEI1157		66	7.6	26
Show		20367+3906	AG 259		313	2.8	31
Show		20327+3916	SEI1160	AB	49	13.9	32
Show		20327+3916	SEI1159	AC	148	21.0	32
Show		20331+3822	TDT2363		174	0.5	34
Show		20371+3837	SEI1193		353	17.1	34
Show		20366+3825	HJ 1548		249	14.0	36
Show		20329+3925	TDT2358		287	0.8	38
Show		20374+3907	TDT2431		244	0.6	38
Show		20317+3831	ES 246	AB	355	5.1	39
Show		20317+3831	ES 246	AC	354	9.9	39
Show		20311+3854	SEI1149		203	19.6	40
Show		20311+3847	SEI1150		74	21.6	40
Show		20314+3833	JNN 284		252	0.1	40
Show		20319+3920	HJ 1531		318	6.4	42
Show		20354+3810	RAO 439		235	0.7	44
Show		20379+3909	SEI1198		307	13.9	44
Show		20331+3932	SEI1164		214	18.0	44
Show		20362+3812	ES 2511		251	7.2	45
Show		20373+3822	SEI1194		113	25.1	45
Show		20306+3850	SEI1144		177	18.1	46
Show		20378+3824	SEI1195		219	9.1	48
Show		20304+3833	A 1430		132	3.4	51
Show		20387+3838	STF2708	AB	323	57.9	52
Show		20387+3838	STF2708	AC	336	40.6	52
Show		20387+3838	STF2708	AD	231	115.6	52
Show		20345+3759	BKO 569		73	8.5	53
Show		20350+3757	SEI1178	AB	174	19.1	55
Show		20350+3757	BKO 570	AC	12	6.2	55
Show		20300+3832	SMA 117		264	12.4	56
Show		20315+3806	SEI1151		215	25.1	56
Show		20352+3754	SEI1180	AB	138	28.4	57
Show		20352+3754	SEI1181	AC	102	29.4	57
Show		20352+3754	SEI1180	BC	33	17.9	57

WDS 20344+3852 : COMPONENTS

	A
B	pa=154.6° sep=20.62"

20344+3852 A

Componente originario normalizzato	AB		Coord arcsec 2000	203427.66+385130.2		Mag	10.2		PmRA	2.00
PmDE	-5.0

20344+3852 B

Componente originario normalizzato	AB		Coord arcsec 2000	203428.42+385111.6		Mag	10.5		PmRA	-2.00
PmDE	-6.0		Calc delta mag	0.3		Calc coord	yes