21025+3844 SEI 1374

21^h 02^m 30.05^s +38° 43' 20.5" P.A. 104.00 sep 17.0 mag 12.17,12.40

Coord 2000	21025+3844	Discov num	SEI1374	Comp		Coord arcsec 2000	21 02 30.05 +38 43 20.5
Date first	1895	Date last	2015	Obs	10
Pa first	108	Pa last	103.7	P.A. Now (θ)	103.7°
Sep first	16.5	Sep last	17.027	Sep. Now (ρ)	17.027"
Mag pri	12.17	Mag sec	12.40	delta mag (ΔM)	0.23	Spectral class
Pri motion ra	-010	Sec motion ra	+007
Pri motion dec	-010	Sec motion dec	-002
Notes

rPM=1.329

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3168-01414-1

Gaia DR2

1872173293700780416

WDS 21025+3844 SEI 1374 : 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
21025+3844	SEI1374		2000	4	104	17.0	12.17	12.40		D	210230.05+384320.5
21025+3844	SEI1374		2002	5	104	16.9	12.17	12.40		D	210230.05+384320.5
21025+3844	SEI1374		2010	6	104	17.0	12.17	12.40			210230.05+384320.5
21025+3844	SEI1374		2015	7	104	17.0	12.17	12.40			210230.05+384320.5

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WDS 21025+3844 SEI 1374 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21025+3844 SEI 1374 : MEASURES

No records found.

WDS 21025+3844 : VIRTUAL EYEPIECE

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WDS 21025+3844 : ALADIN DSS IMAGE @ 21^h 02^m 30.05^s +38° 43' 20.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21025+3844 SEI 1374 : 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		21025+3844	SEI1374		104	17.0	1
Show		21013+3846	ES 2057		258	5.0	13
Show		21037+3842	SEI1384		95	26.4	14
Show		21015+3855	SEI1371		147	11.2	17
Show		21037+3857	TDT2720		214	0.5	20
Show		21040+3854	TDT2723		122	2.6	21
Show		21035+3825	SEI1381		170	16.9	22
Show		21009+3900	SEI1365		263	18.4	26
Show		21020+3914	LV 9		195	2.3	32
Show		21052+3838	ALI 958		146	8.1	32
Show		21018+3916	STF2746		323	1.2	34
Show		21047+3908	SEI1393		132	25.7	36
Show		21036+3803	TDT2718		348	1.4	43
Show		21051+3914	ES 1987		354	7.0	44
Show		21042+3924	SEI1389		61	18.2	45
Show		20586+3856	SEI1341		209	29.5	47
Show		21023+3931	H 4 113	AB	299	18.9	48
Show		21023+3931	H 4 113	AC	248	26.7	48
Show		21023+3931	SMY 6	AE	87	95.7	48
Show		21023+3931	WRD 4	AF	223	101.8	48
Show		21023+3931	SMY 6	AD	141	57.0	48
Show		21023+3931	WRD 4	AG	230	95.0	48
Show		21023+3931	FYM 114	AI	277	41.1	48
Show		21023+3931	WRD 4	ED	230	77.7	48
Show		21023+3931	WRD 4	EH	159	37.4	48
Show		21024+3753	ES 2058		142	3.3	50
Show		21069+3845	STF2758	AB	154	32.0	52
Show		21069+3845	STF2758	AD	250	748.0	52
Show		21069+3845	STF2758	AE	267	340.8	52
Show		21069+3845	STF2758	AF	240	371.2	52
Show		21069+3845	STF2758	AG	236	260.4	52
Show		21069+3845	STF2758	AH	263	134.0	52
Show		21069+3845	SMR 1	AI	236	49.3	52
Show		21069+3845	STF2758	AC	219	839.8	52
Show		21069+3845	HZE 4	AJ	241	17.5	52
Show		21069+3845	HZE 4	AK	83	7.8	52
Show		21069+3845	SMR 40	AO	275	176.6	52
Show		21069+3845	SMR 40	AP	284	166.5	52
Show		21069+3845	SMR 40	AQ	295	76.1	52
Show		21068+3834	TDT2758		236	2.0	52
Show		21069+3845	HZE 4	BL	145	9.9	52
Show		21069+3845	TNN 15	BR	77	11.5	52
Show		21069+3845	STF2758	BC	221	827.6	52
Show		21069+3845	FYM 106	BM	238	100.7	52
Show		21069+3845	FYM 106	BN	152	48.3	52
Show		20583+3904	SEI1340		199	10.2	53
Show		20595+3923	SEI1357		93	14.4	53
Show		21070+3839	ES 2059		267	6.8	54
Show		20593+3924	TOB 207		228	22.0	56
Show		21071+3852	MLB 888		55	4.0	56
Show		20577+3845	DAM 222		290	6.3	56

WDS 21025+3844 : COMPONENTS

	A
B	pa=107.4° sep=13.52"

21025+3844 A

Componente originario normalizzato	AB		Coord arcsec 2000	210230.05+384320.5		Mag	12.17		PmRA	-10.00
PmDE	-10.0		Tycho2	3168-01414-1

Tycho2

Tycho2	3168-01414-1	Pflag		RAmdeg	315.62522616	DEmdeg	38.72237175
PmRA	-14.9	PmDE	-10.8	E RAmdeg	140	E DEmdeg	123
E pmRA	3.6	E pmDE	3.1	EpRAm	1953.92	EpDEm	1955.74
Num	4	Q RAmdeg	1.0	Q DEmdeg	1.0	Q pmRA	1.0
Q pmDE	1.0	BTmag	13.045	E BTmag	0.240	VTmag	12.174
E VTmag	0.166	Prox	999	TYC		HIP
CCDM		RAdeg	315.62525861	DEdeg	38.72238278	EpRA 1990	1.62
EpDE 1990	1.82	E RAdeg	199.5	E DEdeg	171.3	Posflg
Corr	0.0

21025+3844 B

Componente originario normalizzato	AB		Coord arcsec 2000	210231.15+384316.5		Mag	12.4		PmRA	7.00
PmDE	-2.0		Calc delta mag	0.23		Calc coord	yes