20070+3554 SEI 888 AC

20^h 06^m 55.73^s +35° 54' 20.7" P.A. 53.00 sep 21.6 mag 10.66,13.50 Sp A0

Coord 2000	20070+3554	Discov num	SEI 888	Comp	AC	Coord arcsec 2000	20 06 55.73 +35 54 20.7
Date first	1896	Date last	2015	Obs	10
Pa first	53	Pa last	53.1	P.A. Now (θ)	53.1°
Sep first	21.9	Sep last	21.569	Sep. Now (ρ)	21.569"
Mag pri	10.66	Mag sec	13.50	delta mag (ΔM)	2.84	Spectral class	A0 (white)
Pri motion ra	+000	Sec motion ra	-001
Pri motion dec	-003	Sec motion dec	-006
Notes

rPM=0.52

Nature of this double is uncertain.

20070+3554 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 06 56 +35 54 21	SEI 887 AB	2015	11	200	22.8	10.66	13.10	2.44
Show			20 06 56 +35 54 21	SEI 888 AC	2015	10	53	21.6	10.66	13.50	2.84		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2683-02560-1

Gaia DR2

2059098963454679168

227732

WDS 20070+3554 SEI 888 AC : 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
20070+3554	SEI 888	AC	2002	3	53	21.6	9.00	11.00			200655.73+355420.7
20070+3554	SEI 888	AC	2015	6	53	21.6	10.66	13.50	A0		200655.73+355420.7

If you need more information about this double, apply for a data request form to the WDS.

WDS 20070+3554 SEI 888 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20070+3554 SEI 888 AC : MEASURES

No records found.

WDS 20070+3554 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20070+3554 : ALADIN DSS IMAGE @ 20^h 06^m 55.73^s +35° 54' 20.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20070+3554 SEI 888 AC : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20070+3554	SEI 887	AB	200	22.8	1
Show		20070+3554	SEI 888	AC	53	21.6	1
Show		20073+3553	BKO 91	DE	100	6.8	4
Show		20073+3553	SEI 892	AB	335	15.5	5
Show		20073+3553	BKO 91	AC	290	12.4	5
Show		20073+3553	BKO 91	AD	298	51.6	5
Show		20074+3553	BKO 92	BC	45	14.4	5
Show		20074+3553	SEI 894	AB	344	29.1	5
Show		20075+3553	SEI 896		130	11.4	7
Show		20064+3558	BUP 204	AB	36	64.9	8
Show		20064+3558	BUP 204	AC	77	42.7	8
Show		20064+3558	OPI 21	AD	130	35.0	8
Show		20069+3546	SEI 885		285	14.1	9
Show		20069+3545	BKO 88	EF	261	6.4	9
Show		20069+3545	BKO 88	EG	302	6.0	9
Show		20069+3545	SEI 886	AB	123	27.2	10
Show		20069+3545	BKO 88	AC	167	4.2	10
Show		20069+3545	BKO 88	AE	38	43.7	10
Show		20069+3545	BKO 88	BD	251	8.9	10
Show		20062+3551	SEI 869		50	5.0	11
Show		20066+3544	RAO 518		-1	0.2	11
Show		20059+3552	SEI 856		300	22.4	13
Show		20074+3543	STT 398	AB	82	1.0	13
Show		20074+3543	A 280	AC	133	5.7	13
Show		20067+3607	SEI 883	AB	137	26.1	14
Show		20067+3607	BKO 86	AC	97	14.9	14
Show		20060+3547	BU 429	FG	110	10.2	14
Show		20060+3547	DOO 78	FH	153	17.5	14
Show		20064+3543	SEI 877	AB	46	12.9	14
Show		20064+3543	BKO 84	AC	20	5.8	14
Show		20060+3546	SEI 865	EG	196	14.5	14
Show		20058+3556	ES 86	AB	299	14.5	14
Show		20058+3556	ES 86	AD	60	13.1	14
Show		20058+3556	ES 86	AE	327	18.5	14
Show		20058+3556	ABH 129	AF	93	89.4	14
Show		20058+3556	ABH 129	AG	167	67.7	14
Show		20058+3556	ABH 129	AH	229	40.6	14
Show		20058+3556	ABH 129	AI	99	34.6	14
Show		20058+3556	ABH 129	AJ	117	68.5	14
Show		20058+3556	ABH 129	AK	70	86.2	14
Show		20060+3547	BU 440	AB	63	6.9	14
Show		20060+3547	BU 429	AC	29	12.8	14
Show		20060+3547	SHJ 314	AD	299	11.3	14
Show		20060+3547	BU 429	AE	107	28.0	14
Show		20060+3547	SHJ 314	AF	28	36.3	14
Show		20060+3547	HAU 26	AG	43	38.5	14
Show		20060+3547	DOO 78	AH	57	29.7	14
Show		20060+3547	CIA 18	Aa,Ab	218	0.0	14
Show		20058+3556	ES 86	BC	168	9.3	14
Show		20060+3546	ES 25	AB	122	8.6	14
Show		20060+3546	ES 25	AC	297	11.8	14

WDS 20070+3554 : COMPONENTS

	A	B
B	pa=196.3° sep=22.39"
C	pa=47.2° sep=19.05"	pa=30.5° sep=39.96"

20070+3554 A

Coord arcsec 2000	200655.73+355420.7		Mag	10.66		Spectral class	A0 (white)		PmRA	0.00
PmDE	-3.0		Tycho2	2683-02560-1		HD	227732

Tycho2

Tycho2	2683-02560-1	Pflag		RAmdeg	301.73227055	DEmdeg	35.90555851
PmRA	0.7	PmDE	-1.1	E RAmdeg	37	E DEmdeg	33
E pmRA	1.6	E pmDE	1.6	EpRAm	1984.47	EpDEm	1986.53
Num	5	Q RAmdeg	0.5	Q DEmdeg	0.4	Q pmRA	0.5
Q pmDE	0.4	BTmag	10.950	E BTmag	0.053	VTmag	10.641
E VTmag	0.055	Prox	999	TYC	T	HIP
CCDM		RAdeg	301.73226889	DEdeg	35.90556139	EpRA 1990	1.54
EpDE 1990	1.71	E RAdeg	39.1	E DEdeg	33.8	Posflg	P
Corr	0.2

20070+3554 B

Coord arcsec 2000	200655.21+355359.2		Mag	13.1		PmRA	0.00		PmDE	-5.0
Calc delta mag	2.44		Calc coord	yes

20070+3554 C

Coord arcsec 2000	200656.88+355433.7		Mag	13.5		PmRA	-1.00		PmDE	-6.0
Calc delta mag	2.84		Calc coord	yes