19458+4033 STT 385 (HD 186978)

19^h 45^m 48.77^s +40° 33' 18.9" P.A. 51.00 sep 1.2 mag 7.77,9.58 Sp B7IV dist. 793.65 pc (2588.89 l.y.)

Coord 2000	19458+4033	Discov num	STT 385	Comp		Coord arcsec 2000	19 45 48.77 +40 33 18.9
Date first	1843	Date last	2016	Obs	35
Pa first	50	Pa last	50.5	P.A. Now (θ)	50.5°
Sep first	1.1	Sep last	1.228	Sep. Now (ρ)	1.228"
Mag pri	7.77	Mag sec	9.58	delta mag (ΔM)	1.81	Spectral class	B7IV (blue-white)
Pri motion ra	+000	Sec motion ra	+000
Pri motion dec	-003	Sec motion dec	-003
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 186978	Constellation	Cygnus	SAO	48807	HIP	97240
Tycho2	3140-01634-1	Gaia DR2	2076744475789900160	HD	186978	ADS	12904
BD	BD+40 3870	Distance	793.65	Distance ly	2588.89

WDS 19458+4033 STT 385 (HD 186978) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
STTA		(O. Struve DD - Appendix list)	...................
Stt1864	Ma -	Struve, O.	1864MNRAS..24..149S
Stt1864		MNRAS 24, 149, 1864
Stt1866	orb -	Struve, O.	.
Stt1866		Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874	orb -	Struve, O.	.
Stt1874		Compte Rendus 79, 1467, 1874
Stt1875	orb -	Struve, O.	1875MNRAS..35..367S
Stt1875		MNRAS 35, 367, 1875
Stt1878	Ma -	Struve, O.	1878ObPul...9....1S
Stt1878		Pulkova Observations 9, 1, 1878
Stt1879A	Ma -	Struve, O.	1879Obs.....2..304G
Stt1879A		cited by Gledhill (Obs 2, 304, 1879)
Stt1879B	Ma -	Struve, O.	1879Obs.....3..245G
Stt1879B		cited by Gledhill (Obs 3, 245, 1879)
Stt1879C	Ma -	Struve, O.	1879Obs.....2..344G
Stt1879C		cited by Gledhill (Obs 2, 344, 1879)
Stt1880A	Ma -	Struve, O.	1880Obs.....2..605H
Stt1880A		cited by Hunt (Obs. 3, 605, 1880)
Stt1880B	Ma -	Struve, O.	1880Obs.....3..535G
Stt1880B		cited by Gledhill (Obs 3, 535, 1880)
Stt1880C	Ma -	Struve, O.	1880MNRAS..40..497B
Stt1880C		cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A	Ma -	Struve, O.	1884AReg...22..216S
Stt1884A		cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a	Ma j	Struve, O.	1893ObPul..10....1S
Stt1893a		Pulkova Obs. Observations 10, 1, 1893
Stt1906A	Ma -	Struve, O.	1906MmRAS..56....1L
Stt1906A		cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B	Ma j	Struve, O.	1906QB821.B972.....
Stt1906B		cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A	Ma -	Struve, O.	1908MNRAS..68..465B
Stt1908A		cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A	Ma -	Struve, O.	1913QB811.B8.......
Stt1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A	Ma -	Struve, O.	1914AN....198..107R
Stt1914A		cited by Rabe (AN 198, 107, 1914)
Stt1932A	Ma -	Struve, O.	1932QB821.A43......
Stt1932A		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
19458+4033	STT 385		1995	27	51	1.2	7.77	9.58	B7IV	D	194548.77+403318.9
19458+4033	STT 385		2010	30	50	1.2	7.77	9.58	B7IV	D	194548.77+403318.9
19458+4033	STT 385		2012	32	51	1.2	7.77	9.58	B7IV		194548.77+403318.9
19458+4033	STT 385		2016	33	51	1.2	7.77	9.58	B7IV		194548.77+403318.9

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

WDS 19458+4033 STT 385 (HD 186978) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 19458+4033 STT 385 (HD 186978) : MEASURES

No records found.

WDS 19458+4033 (HD 186978) : 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 19458+4033 (HD 186978) : ALADIN DSS IMAGE @ 19^h 45^m 48.77^s +40° 33' 18.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 19458+4033 STT 385 (HD 186978) : 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		19458+4033	STT 385		51	1.2
Show		19463+4043	KOI3119	AB	313	1.1	12
Show		19463+4043	KOI3119	AC	286	3.9	12
Show		19463+4043	KOI3119	AD	222	5.9	12
Show		19463+4043	KOI3119	AE	218	6.4	12
Show		19460+4046	KOI4154		113	3.3	13
Show		19470+4026	DEA 154		240	7.9	16
Show		19473+4028	KOI6556		69	3.0	19
Show		19467+4017	KOI6527		353	2.2	20
Show		19475+4027	KOI3463	AB	79	2.7	21
Show		19475+4027	KOI3463	AC	96	3.7	21
Show		19471+4048	KOI4495	AB	58	3.0	21
Show		19471+4048	KOI4495	AC	89	3.1	21
Show		19471+4048	KOI4495	AD	343	3.4	21
Show		19453+4054	KOI3817		27	2.2	22
Show		19473+4054	DEA 96		292	5.9	28
Show		19475+4014	KOI 639	AB	357	3.4	28
Show		19475+4014	KOI 639	AC	176	3.5	28
Show		19483+4032	KOI 261	AB	65	5.3	29
Show		19483+4032	KOI 261	AC	330	3.4	29
Show		19437+4018	KOI1932	AB	115	0.5	29
Show		19437+4018	KOI1932	AC	312	4.6	29
Show		19482+4043	KOI3377	AB	335	0.3	29
Show		19482+4043	KOI3377	AC	50	1.4	29
Show		19434+4023	DEA 378		185	18.1	30
Show		19456+4102	KOI2614		16	2.9	30
Show		19473+4010	KOI6500		81	2.6	30
Show		19474+4010	KOI6501		232	3.4	30
Show		19433+4025	DEA 219		312	9.9	30
Show		19434+4021	JKA 74		254	12.2	31
Show		19474+4008	KOI1573	AB	300	4.0	31
Show		19431+4026	KOI1593		82	3.2	32
Show		19430+4037	KOI6581		58	3.5	33
Show		19429+4038	DEA 268		211	11.1	33
Show		19476+4059	DEA 465		267	39.9	34
Show		19429+4043	STT 383	AB	15	0.8	35
Show		19429+4043	STT 383	AC	99	45.2	35
Show		19429+4043	STT 383	AD	43	68.1	35
Show		19441+4005	KOI5107		206	3.1	35
Show		19427+4036	KOI 182		251	3.5	36
Show		19490+4033	KOI2011		292	5.0	37
Show		19439+4004	KOI6476		264	2.4	37
Show		19487+4017	KOI6126		79	2.5	37
Show		19486+4016	DEA 104		43	6.0	37
Show		19475+4105	KOI1902	AB	27	0.0	37
Show		19475+4105	KOI1902	AC	242	5.0	37
Show		19475+4105	KOI1902	AD	200	5.8	37
Show		19474+4106	KOI1050		197	2.1	38
Show		19482+4007	KOI5118		338	3.0	38
Show		19485+4055	KOI6620	AB	81	3.7	38
Show		19485+4055	KOI6620	AC	20	3.9	38

WDS 19458+4033 : COMPONENTS

	A
B	pa=42.7° sep=1.06"

19458+4033 A

Componente originario normalizzato	AB	Name	HD 186978	Coord arcsec 2000	194548.77+403318.9	Mag	7.77
Spectral class	B7IV (blue-white)	PmRA	0.00	PmDE	-3.0	SAO	48807
HIP	97240	Tycho2	3140-01634-1	HD	186978	ADS	12904
BD	BD+40 3870

Tycho2

Tycho2	3140-01634-1	Pflag	P	RAmdeg	296.45320202	DEmdeg	40.55525939
PmRA	0.1	PmDE	-3.4	E RAmdeg	4	E DEmdeg	4
E pmRA	1.5	E pmDE	1.4	EpRAm	1991.52	EpDEm	1991.61
Num	5	Q RAmdeg	0.8	Q DEmdeg	1.8	Q pmRA	0.7
Q pmDE	1.7	BTmag	7.659	E BTmag	0.015	VTmag	7.767
E VTmag	0.011	Prox	12	TYC	T	HIP	97240
CCDM	A	RAdeg	296.45316944	DEdeg	40.55524750	EpRA 1990	1.61
EpDE 1990	1.71	E RAdeg	4.4	E DEdeg	4.2	Posflg	D
Corr	0.0

SAO

SAO	48807	DelFlag		RA1950		PmRA1950	0.0003
DE1950		PmDE1950	-0.011	Vmag	7.8	SpType	B8
Double code		Source	4	CatNum	1900	DM	BD+40 3870
DMcomp		BDsup		HD	186978	M HD	0
GC		RA1950rad	5.16662118	DE1950rad	0.70567223	PmRA2000	0.0006
PmDE2000	-0.012

Hipparcos

Catalog	H	HIP	97240	Proxy	H	RAhms	19 45 48.76
DEdms	+40 33 18.9	Vmag	7.56	VarFlag		R Vmag	G
RAdeg	296.453	DEdeg	40.5552	AstroRef	A	Plx	0.96
CCDM	19458+4033	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	50	Rho	1.238	HD	186978	BD	BD+40 3870
CD		CP		Dm number	+40 3870	VIred	-0.05
SpType	B8	R SpType		Coord arcsec 2000	194548.76+403318.9

Hipparcos 2

HIP	97240	Sn	15	So	3	Nc	2
RArad	5.1740838684	DErad	0.7078225486	Plx	1.26	PmRA	1.71
PmDE	1.2	E RArad	0.45	E DErad	0.46	E Plx	0.59
E pmRA	0.48	E pmDE	0.57	Hpmag	7.5794	E Hpmag	0.001
SHp	0.011	VA	0	BV	-0.07	E BV	0.015
VI	-0.05

CCDM

Ccdm	19458+4033	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.70	DDEs	19.6
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.4	Sp	B8	PmNote	*
PmRA	-8	PmDE	16	Dm number	+40 3870	Cat1	BD
Name2	+40 1900	Cat2	AGK2/3	HD	186978	M HD
ADS BDS	A12904	M ADS BDS		N IDS		IDS	19424N4019A
HIC	97240

19458+4033 B

Componente originario normalizzato	AB		Coord arcsec 2000	194548.83+403319.7		Mag	9.58		PmRA	0.00
PmDE	-3.0		Tycho2	3140-01634-2		Calc delta mag	1.81		Calc coord	yes

Tycho2

Tycho2	3140-01634-2	Pflag	P	RAmdeg	296.45320202	DEmdeg	40.55525939
PmRA	0.1	PmDE	-3.4	E RAmdeg	4	E DEmdeg	4
E pmRA	1.5	E pmDE	1.4	EpRAm	1991.52	EpDEm	1991.61
Num	5	Q RAmdeg	0.8	Q DEmdeg	1.8	Q pmRA	0.7
Q pmDE	1.7	BTmag	9.513	E BTmag	0.020	VTmag	9.576
E VTmag	0.021	Prox	12	TYC		HIP	97240
CCDM	B	RAdeg	296.45351833	DEdeg	40.55546222	EpRA 1990	1.68
EpDE 1990	1.70	E RAdeg	11.6	E DEdeg	10.8	Posflg	D
Corr	0.0

CCDM

Ccdm	19458+4033	RComp		Comp	B	Note1
Note2		Discov num	STT 385	DRAs		DDEs
R dRAs		Year	1845	Theta	053	Rho	1.3
Obs	12	Vmag	9.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A12904	M ADS BDS		N IDS		IDS	19424N4019B
HIC	97240