20163+3924 SEI 1051 (HD 228681)

20^h 16^m 18.85^s +39° 23' 30.2" P.A. 148.00 sep 22.3 mag 10.05,11.47 Sp A2

Coord 2000	20163+3924	Discov num	SEI1051	Comp		Coord arcsec 2000	20 16 18.85 +39 23 30.2
Date first	1892	Date last	2015	Obs	11
Pa first	149	Pa last	147.7	P.A. Now (θ)	147.7°
Sep first	22.2	Sep last	22.328	Sep. Now (ρ)	22.328"
Mag pri	10.05	Mag sec	11.47	delta mag (ΔM)	1.42	Spectral class	A2 (white)
Pri motion ra	+003	Sec motion ra	+002
Pri motion dec	+001	Sec motion dec	+002
Notes

rPM=0.447

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 228681		Constellation	Cygnus		Tycho2	3155-00956-1		Gaia DR2	2062129389282621440
HD	228681

WDS 20163+3924 SEI 1051 (HD 228681) : 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
20163+3924	SEI1051		1998	4	148	22.4	10.05	11.60	A2	D	201618.85+392330.2
20163+3924	SEI1051		2002	5	148	22.3	10.05	11.60	A2	D	201618.85+392330.2
20163+3924	SEI1051		2010	6	148	22.3	10.05	11.47	A2		201618.85+392330.2
20163+3924	SEI1051		2015	7	148	22.3	10.05	11.47	A2		201618.85+392330.2

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

WDS 20163+3924 SEI 1051 (HD 228681) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20163+3924 SEI 1051 (HD 228681) : MEASURES

No records found.

WDS 20163+3924 (HD 228681) : 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 20163+3924 (HD 228681) : ALADIN DSS IMAGE @ 20^h 16^m 18.85^s +39° 23' 30.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20163+3924 SEI 1051 (HD 228681) : 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		20163+3924	SEI1051		148	22.3
Show		20167+3938	HO 590	AB	207	3.5	15
Show		20167+3938	HO 590	AC	88	25.9	15
Show		20151+3929	MLB 982	BC	355	6.0	16
Show		20151+3929	MLB 982	AB	183	30.8	16
Show		20156+3910	SEI1046		249	1.5	16
Show		20158+3937	ES 1974		160	2.9	17
Show		20177+3921	SEI1070		143	27.9	17
Show		20177+3914	COU2536		312	1.8	19
Show		20168+3942	DAM1040	FG	225	3.5	20
Show		20168+3942	STF2663	AB	322	5.4	20
Show		20168+3942	CTT 21	AC	188	103.0	20
Show		20168+3942	DAM1040	AF	123	22.3	20
Show		20144+3920	SEI1039	AB	135	10.7	22
Show		20144+3920	TOB 182	AC	194	43.2	22
Show		20159+3859	BRT2230		297	6.0	25
Show		20185+3916	MLB 881		145	10.3	27
Show		20160+3856	ALI 926		282	8.6	28
Show		20188+3924	SEI1078		45	17.7	29
Show		20161+3854	CHR 95		56	0.2	30
Show		20188+3909	SEI1079		110	6.2	33
Show		20191+3916	TRN 28	AB	80	4.9	34
Show		20191+3916	TRN 28	AC	158	3.2	34
Show		20146+3855	ES 2047	AB	174	33.2	35
Show		20146+3855	ES 2047	AD	103	10.6	35
Show		20146+3855	ES 2047	AE	106	27.6	35
Show		20135+3912	SEI1025	AB	168	5.7	35
Show		20135+3912	SEI1025	AC	256	26.6	35
Show		20146+3855	ES 2047	BC	197	4.7	35
Show		20184+3950	A 1424		46	1.1	36
Show		20192+3938	ES 2051		306	4.9	37
Show		20178+3956	HJ 2951	AB	125	10.8	37
Show		20178+3956	FOX9014	AC	61	24.4	37
Show		20189+3945	COU2537		295	0.8	37
Show		20183+3953	BKO 822		60	7.1	38
Show		20190+3900	HO 125		196	3.5	39
Show		20133+3905	SEI1017		259	28.3	41
Show		20128+3916	SEI1013		330	20.6	42
Show		20192+3859	HO 126	AB	163	2.2	43
Show		20192+3859	HO 126	AC	247	37.0	43
Show		20199+3933	HO 593		313	5.0	43
Show		20200+3921	MLB 882		279	5.0	44
Show		20179+3845	SLE 990		274	8.9	44
Show		20163+4007	MLB1013		160	4.0	44
Show		20201+3921	ES 2050	AB	92	5.9	45
Show		20201+3921	ES 2050	AC	191	11.2	45
Show		20203+3924	A 1427	AB	132	0.2	46
Show		20203+3924	STF2668	AB,C	280	3.5	46
Show		20203+3919	BKO 566		159	5.9	47
Show		20203+3922	SEI1091		180	27.7	47
Show		20203+3920	SEI1090		154	13.9	47

WDS 20163+3924 : COMPONENTS

	A
B	pa=154.0° sep=21.01"

20163+3924 A

Componente originario normalizzato	AB	Name	HD 228681	Coord arcsec 2000	201618.85+392330.2	Mag	10.05
Spectral class	A2 (white)	PmRA	3.00	PmDE	1.0	Tycho2	3155-00956-1
HD	228681

Tycho2

Tycho2	3155-00956-1	Pflag		RAmdeg	304.07855059	DEmdeg	39.39174414
PmRA	2.1	PmDE	2.2	E RAmdeg	16	E DEmdeg	15
E pmRA	1.3	E pmDE	1.3	EpRAm	1989.21	EpDEm	1989.49
Num	5	Q RAmdeg	0.6	Q DEmdeg	0.9	Q pmRA	0.5
Q pmDE	0.9	BTmag	10.176	E BTmag	0.026	VTmag	10.048
E VTmag	0.029	Prox	897	TYC	T	HIP
CCDM		RAdeg	304.07854306	DEdeg	39.39173972	EpRA 1990	1.60
EpDE 1990	1.68	E RAdeg	16.9	E DEdeg	15.9	Posflg
Corr	0.0

20163+3924 B

Componente originario normalizzato	AB		Coord arcsec 2000	201619.65+392311.3		Mag	11.47		PmRA	2.00
PmDE	2.0		Calc delta mag	1.42		Calc coord	yes