21042+3924 SEI 1389

21^h 04^m 09.78^s +39° 23' 44.9" P.A. 61.00 sep 18.2 mag 11.00,11.00

Coord 2000	21042+3924	Discov num	SEI1389	Comp		Coord arcsec 2000	21 04 09.78 +39 23 44.9
Date first	1895	Date last	2015	Obs	8
Pa first	79	Pa last	61	P.A. Now (θ)	61°
Sep first	15.6	Sep last	18.23	Sep. Now (ρ)	18.23"
Mag pri	11.00	Mag sec	11.00	delta mag (ΔM)	0	Spectral class
Pri motion ra	-009	Sec motion ra	+008
Pri motion dec	-004	Sec motion dec	+002
Notes

rPM=1.83

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1872309736220337920

WDS 21042+3924 SEI 1389 : 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
21042+3924	SEI1389		2000	2	61	18.3	11.00	11.00		D	210409.78+392344.9
21042+3924	SEI1389		2002	3	61	18.2	11.00	11.00		D	210409.78+392344.9
21042+3924	SEI1389		2010	4	59	16.7	11.00	11.00			210409.78+392344.9
21042+3924	SEI1389		2015	5	61	18.2	11.00	11.00			210409.78+392344.9

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WDS 21042+3924 SEI 1389 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21042+3924 SEI 1389 : MEASURES

No records found.

WDS 21042+3924 : VIRTUAL EYEPIECE

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WDS 21042+3924 : ALADIN DSS IMAGE @ 21^h 04^m 09.78^s +39° 23' 44.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21042+3924 SEI 1389 : 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		21042+3924	SEI1389		61	18.2
Show		21051+3914	ES 1987		354	7.0	15
Show		21047+3908	SEI1393		132	25.7	17
Show		21058+3929	A 2691	CD	275	6.4	20
Show		21058+3929	A 2691	AB	217	2.7	20
Show		21058+3929	A 2691	AC	313	27.4	20
Show		21054+3937	CRB 137		352	29.3	20
Show		21023+3931	WRD 4	ED	230	77.7	21
Show		21023+3931	WRD 4	EH	159	37.4	21
Show		21023+3931	H 4 113	AB	299	18.9	23
Show		21023+3931	H 4 113	AC	248	26.7	23
Show		21023+3931	SMY 6	AE	87	95.7	23
Show		21023+3931	WRD 4	AF	223	101.8	23
Show		21023+3931	SMY 6	AD	141	57.0	23
Show		21023+3931	WRD 4	AG	230	95.0	23
Show		21023+3931	FYM 114	AI	277	41.1	23
Show		21029+3946	SEI1379		7	19.4	26
Show		21020+3914	LV 9		195	2.3	27
Show		21037+3857	TDT2720		214	0.5	28
Show		21018+3916	STF2746		323	1.2	29
Show		21040+3854	TDT2723		122	2.6	31
Show		21031+3959	LDS2483	AB	41	30.6	38
Show		21071+3905	ALI 960		110	12.9	39
Show		21014+3948	SEI1370		141	20.7	40
Show		21012+3949	SEI1369		309	4.5	42
Show		21008+3940	SEI1364		114	12.1	43
Show		21015+3855	SEI1371		147	11.2	43
Show		21037+3842	SEI1384		95	26.4	43
Show		21061+4001	COU2224		67	0.4	44
Show		21025+3844	SEI1374		104	17.0	45
Show		21073+3857	MLB 889		5	7.0	46
Show		21009+3900	SEI1365		263	18.4	46
Show		21071+3852	MLB 888		55	4.0	47
Show		21052+3838	ALI 958		146	8.1	48
Show		21074+3853	MLB 890		250	5.3	49
Show		21013+3846	ES 2057		258	5.0	49
Show		21072+3958	TDT2765	Aa,Ab	149	0.4	50
Show		21072+3958	ES 1990	AB	38	5.8	50
Show		21069+3845	STF2758	AB	154	32.0	51
Show		21069+3845	STF2758	AD	250	748.0	51
Show		21069+3845	STF2758	AE	267	340.8	51
Show		21069+3845	STF2758	AF	240	371.2	51
Show		21069+3845	STF2758	AG	236	260.4	51
Show		21069+3845	STF2758	AH	263	134.0	51
Show		21069+3845	SMR 1	AI	236	49.3	51
Show		21069+3845	STF2758	AC	219	839.8	51
Show		21069+3845	HZE 4	AJ	241	17.5	51
Show		21069+3845	HZE 4	AK	83	7.8	51
Show		21069+3845	SMR 40	AO	275	176.6	51
Show		21069+3845	SMR 40	AP	284	166.5	51
Show		21069+3845	SMR 40	AQ	295	76.1	51

WDS 21042+3924 : COMPONENTS

	A
B	pa=54.3° sep=15.16"

21042+3924 A

Componente originario normalizzato	AB		Coord arcsec 2000	210409.78+392344.9		Mag	11		PmRA	-9.00
PmDE	-4.0

21042+3924 B

Componente originario normalizzato	AB		Coord arcsec 2000	210410.84+392353.7		Mag	11		PmRA	8.00
PmDE	2.0		Calc coord	yes