20119+3510 SEI 988 (HD 228237)

20^h 12^m 02.08^s +35° 09' 55.6" P.A. 3.00 sep 3.8 mag 10.88,11.42 Sp B9

Coord 2000	20119+3510	Discov num	SEI 988	Comp		Coord arcsec 2000	20 12 02.08 +35 09 55.6
Date first	1896	Date last	2015	Obs	20
Pa first	0	Pa last	3.4	P.A. Now (θ)	3.4°
Sep first	3.4	Sep last	3.78	Sep. Now (ρ)	3.78"
Mag pri	10.88	Mag sec	11.42	delta mag (ΔM)	0.54	Spectral class	B9 (blue-white)
Pri motion ra	-004	Sec motion ra	-004
Pri motion dec	-025	Sec motion dec	+004
Notes	N (See Notes)

rPM=1.145

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 228237		Constellation	Cygnus		Tycho2	2679-01693-1		Gaia DR2	2058854184673009920
HD	228237

WDS 20119+3510 SEI 988 (HD 228237) : NOTES

discov_num	notes	refcode
SEI 988	J 127.

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
20119+3510	SEI 988		2001	13	4	3.8	10.88	11.42		N D	201202.08+350955.6
20119+3510	SEI 988		2010	14	3	3.7	10.88	11.42		N D	201202.08+350955.6
20119+3510	SEI 988		2011	17	3	3.5	10.88	11.42		N D	201202.08+350955.6
20119+3510	SEI 988		2013	19	4	3.8	10.88	11.42	B9	N	201202.08+350955.6
20119+3510	SEI 988		2015	20	3	3.8	10.88	11.42	B9	N	201202.08+350955.6

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WDS 20119+3510 SEI 988 (HD 228237) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20119+3510 SEI 988 (HD 228237) : MEASURES

No records found.

WDS 20119+3510 (HD 228237) : VIRTUAL EYEPIECE

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WDS 20119+3510 (HD 228237) : ALADIN DSS IMAGE @ 20^h 12^m 02.08^s +35° 09' 55.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20119+3510 SEI 988 (HD 228237) : 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		20119+3510	SEI 988		3	3.8
Show		20117+3458	SEI 977		39	15.2	14
Show		20124+3455	ABT9004		5	27.9	16
Show		20120+3454	SEI 987		336	23.2	16
Show		20127+3456	TDT2090		256	0.5	17
Show		20133+3502	ARY 23	AB	28	81.6	18
Show		20133+3502	SKF2392	BD	346	14.0	18
Show		20133+3502	ARY 23	BC	339	65.0	18
Show		20123+3451	AG 249	CD	352	6.3	19
Show		20123+3451	AG 249	AB	133	32.9	20
Show		20123+3451	AG 249	AC	30	13.0	20
Show		20113+3527	SEI 966		246	26.0	20
Show		20103+3511	SEI 941		156	27.5	22
Show		20130+3450	SEI1012		49	14.6	24
Show		20114+3532	TDT2064		329	0.6	24
Show		20135+3526	COU2214	AB	31	1.1	25
Show		20135+3526	COU2214	AC	263	3.4	25
Show		20107+3529	RAO 427		126	0.5	25
Show		20106+3452	A 281	AB	172	4.2	25
Show		20106+3452	ARN 96	AC	314	63.6	25
Show		20099+3509	BKO 99		67	7.3	27
Show		20097+3510	SEI 937		67	25.3	29
Show		20142+3522	ES 204		281	15.1	30
Show		20118+3540	SEI 979		350	6.3	30
Show		20115+3539	SEI 968		127	5.6	30
Show		20096+3506	TOB 173		186	15.6	31
Show		20144+3501	COU2216		207	0.6	31
Show		20096+3519	COU2128		243	2.1	31
Show		20123+3540	FYM 582		267	4.9	31
Show		20096+3459	SEI 929		31	20.9	33
Show		20128+3439	TDT2091		24	1.0	33
Show		20144+3524	ES 244	AB	130	41.2	33
Show		20144+3524	ES 244	BC	17	4.9	34
Show		20144+3524	ES 244	CD	304	4.1	34
Show		20120+3436	HO 120	AB	111	1.2	35
Show		20120+3436	HO 120	AC	200	24.2	35
Show		20146+3522	SEI1040		49	4.4	35
Show		20096+3530	BKO 97	EF	312	8.3	35
Show		20095+3525	TDT2034		120	0.3	35
Show		20144+3556	SEI1035		198	15.4	36
Show		20115+3545	TDT2066		129	1.0	36
Show		20096+3530	BKO 97	CD	11	8.7	36
Show		20124+3545	BKO 104	AB	72	9.4	36
Show		20124+3545	BKO 104	AC	285	9.3	36
Show		20096+3530	SEI 930	AB	101	22.5	36
Show		20096+3530	BKO 97	AC	178	24.1	36
Show		20096+3530	BKO 97	AE	107	70.4	36
Show		20092+3520	ALI 184		228	13.2	36
Show		20096+3532	SEI 931		81	16.0	37
Show		20090+3516	SEI 919		118	5.5	38
Show		20122+3548	SEI 992		77	26.4	38

WDS 20119+3510 : COMPONENTS

	A
B	pa=2.8° sep=3.78"

20119+3510 A

Componente originario normalizzato	AB		Name	HD 228237		Coord arcsec 2000	201202.08+350955.6		Mag	10.88
Spectral class	B9 (blue-white)		PmRA	-4.00		PmDE	-25.0		Tycho2	2679-01693-1

Tycho2

Tycho2	2679-01693-1	Pflag		RAmdeg	303.00865759	DEmdeg	35.16542986
PmRA	-3.8	PmDE	-1.0	E RAmdeg	46	E DEmdeg	47
E pmRA	2.5	E pmDE	2.5	EpRAm	1987.49	EpDEm	1987.50
Num	3	Q RAmdeg	0.1	Q DEmdeg	0.4	Q pmRA	0.1
Q pmDE	0.4	BTmag	11.577	E BTmag	0.072	VTmag	11.044
E VTmag	0.075	Prox	38	TYC	T	HIP
CCDM		RAdeg	303.00866833	DEdeg	35.16543194	EpRA 1990	1.65
EpDE 1990	1.67	E RAdeg	47.3	E DEdeg	47.7	Posflg
Corr	0.1

20119+3510 B

Componente originario normalizzato	AB	Coord arcsec 2000	201202.09+350959.4	Mag	11.42	PmRA	-4.00
PmDE	4.0	Tycho2	2679-01693-2	HD	228237	Calc delta mag	0.54
Calc coord	yes

Tycho2

Tycho2	2679-01693-2	Pflag		RAmdeg	303.00872903	DEmdeg	35.16650451
PmRA	-1.7	PmDE	4.6	E RAmdeg	56	E DEmdeg	56
E pmRA	2.5	E pmDE	2.5	EpRAm	1985.48	EpDEm	1985.72
Num	3	Q RAmdeg	0.7	Q DEmdeg	0.8	Q pmRA	0.7
Q pmDE	0.8	BTmag	11.699	E BTmag	0.079	VTmag	11.374
E VTmag	0.102	Prox	38	TYC		HIP
CCDM		RAdeg	303.00873306	DEdeg	35.16649472	EpRA 1990	1.65
EpDE 1990	1.67	E RAdeg	57.5	E DEdeg	57.9	Posflg
Corr	0.1