20231+4037 TDT 2228 (HD 229177)

20^h 23^m 04.98^s +40° 36' 36.0" P.A. 242.00 sep 0.4 mag 9.41,10.39 Sp B9

Coord 2000	20231+4037	Discov num	TDT2228	Comp		Coord arcsec 2000	20 23 04.98 +40 36 36.0
Date first	1991	Date last	2011	Obs	2
Pa first	251	Pa last	241.7	P.A. Now (θ)	241.7°
Sep first	0.4	Sep last	0.38	Sep. Now (ρ)	0.38"
Mag pri	9.41	Mag sec	10.39	delta mag (ΔM)	0.98	Spectral class	B9 (blue-white)
Pri motion ra	+003	Sec motion ra	+003
Pri motion dec	-003	Sec motion dec	-003
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 229177		Constellation	Cygnus		SAO	49554		Tycho2	3156-00936-1
Gaia DR2	2067559567962683648		HD	229177		DM	BD+40 4143

WDS 20231+4037 TDT 2228 (HD 229177) : NOTES

No records found.

REFERENCES

No records found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20231+4037	TDT2228		1991	1	251	0.4	9.41	10.39			202304.98+403636.0
20231+4037	TDT2228		2011	2	242	0.4	9.41	10.39	B9		202304.98+403636.0

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WDS 20231+4037 TDT 2228 (HD 229177) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20231+4037 TDT 2228 (HD 229177) : MEASURES

No records found.

WDS 20231+4037 (HD 229177) : VIRTUAL EYEPIECE

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WDS 20231+4037 (HD 229177) : ALADIN DSS IMAGE @ 20^h 23^m 04.98^s +40° 36' 36.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20231+4037 TDT 2228 (HD 229177) : 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		20231+4037	TDT2228		242	0.4
Show		20232+4046	ES 1677		270	7.4	10
Show		20231+4047	J 787	CD	292	25.3	11
Show		20231+4047	J 787	AB	165	2.6	11
Show		20231+4047	J 787	AC	112	9.5	11
Show		20231+4047	J 787	AD	293	15.8	11
Show		20231+4048	GRF 15		139	199.3	12
Show		20221+4042	ES 1676		285	2.4	14
Show		20232+4052	CIA 46		14	0.0	16
Show	Sadr	20222+4015	BU 665	A,BC	197	147.1	24
Show		20210+4041	TDT2199		122	0.8	24
Show		20251+4042	TDT2253		239	2.4	24
Show		20222+4015	BU 665	BC,D	131	41.0	26
Show		20222+4015	BU 665	BC	302	1.9	26
Show		20207+4031	TDT2193		288	1.2	28
Show		20248+4009	HO 278		70	0.1	34
Show		20204+4021	TDT2186		349	0.5	35
Show		20254+4014	MLR 1		213	0.4	36
Show		20259+4019	ALI1142		56	12.1	37
Show		20244+4002	MLB 21		15	8.8	37
Show		20264+4029	MLB1087		98	9.5	39
Show		20253+4003	MLB 22		227	6.2	42
Show		20255+4006	D 22	AB	163	2.9	42
Show		20255+4006	D 22	AC	114	18.1	42
Show		20255+4006	POP 224	AD	98	71.2	42
Show		20257+4004	TOR 25	AB	191	4.7	45
Show		20257+4004	POP 199	AC	245	59.6	45
Show		20197+4108	STTA205		321	45.5	50
Show		20203+3958	BRT2260		9	3.2	50
Show		20215+3950	SEI1103		223	17.0	51
Show		20199+4000	MLB1015		89	4.0	52
Show		20184+4033	ARN 49		313	30.2	54
Show		20205+4127	LI 4		333	8.9	54
Show		20278+4036	TDT2294		310	2.2	54
Show		20215+4127	TDT2203		225	0.7	54
Show		20205+4122	LI 5	AB	145	8.8	55
Show		20205+4122	FAB 15	AC	203	19.5	55
Show		20198+3958	MLB1014		241	7.6	55
Show		20212+4128	A 287		132	1.5	56
Show		20181+4044	CHR 96	Aa,Ab	151	0.1	57
Show		20181+4044	STF2666	AB	245	2.8	57
Show		20181+4044	STF2666	AC	207	34.0	57
Show		20181+4044	TAR 5	AD	181	49.6	57
Show		20181+4044	STF2666	CD	142	24.1	58
Show		20274+4107	TDT2288		181	2.5	58
Show		20254+4129	COU2642		321	0.7	59
Show		20283+4038	TDT2306		156	1.1	59
Show		20237+3937	ALI1141		21	11.5	60
Show		20177+4030	HDS2897		273	0.3	62
Show		20264+4125	A 292		134	2.1	62
Show		20187+4113	COU2640		265	0.5	62

WDS 20231+4037 : COMPONENTS

	A
B	pa=234.7° sep=0.31"

20231+4037 A

Componente originario normalizzato	AB	Name	HD 229177	Coord arcsec 2000	202304.98+403636.0	Mag	9.41
Spectral class	B9 (blue-white)	PmRA	3.00	PmDE	-3.0	SAO	49554
Tycho2	3156-00936-1	HD	229177	DM	BD+40 4143

Tycho2

Tycho2	3156-00936-1	Pflag		RAmdeg	305.77071600	DEmdeg	40.60999713
PmRA	3.0	PmDE	-3.0	E RAmdeg	9	E DEmdeg	9
E pmRA	1.0	E pmDE	1.0	EpRAm	1990.62	EpDEm	1990.55
Num	8	Q RAmdeg	1.1	Q DEmdeg	0.7	Q pmRA	1.1
Q pmDE	0.6	BTmag	9.098	E BTmag	0.018	VTmag	9.120
E VTmag	0.018	Prox	357	TYC	T	HIP
CCDM		RAdeg	305.77070722	DEdeg	40.61000417	EpRA 1990	1.75
EpDE 1990	1.68	E RAdeg	8.6	E DEdeg	8.8	Posflg
Corr	0.1

SAO

SAO	49554	DelFlag		RA1950		PmRA1950	-0.0002
DE1950		PmDE1950	-0.034	Vmag	8.8	SpType	A0
Double code		Source	4	CatNum	2029	DM	BD+40 4143
DMcomp		BDsup		HD	229177	M HD	0
GC		RA1950rad	5.32890116	DE1950rad	0.70595221	PmRA2000	0.0001
PmDE2000	-0.036

20231+4037 B

Componente originario normalizzato	AB		Coord arcsec 2000	202304.96+403635.8		Mag	10.39		PmRA	3.00
PmDE	-3.0		Calc delta mag	0.98		Calc coord	yes