16424+2136 STF 2085 AB (HD 150781)

16^h 42^m 26.09^s +21° 35' 34.3" P.A. 310.00 sep 6.1 mag 7.38,9.17 Sp A0IV dist. 190.48 pc (621.35 l.y.)

Coord 2000	16424+2136	Discov num	STF2085	Comp	AB	Coord arcsec 2000	16 42 26.09 +21 35 34.3
Date first	1830	Date last	2020	Obs	53
Pa first	309	Pa last	309.8	P.A. Now (θ)	309.8°
Sep first	6.9	Sep last	6.095	Sep. Now (ρ)	6.095"
Mag pri	7.38	Mag sec	9.17	delta mag (ΔM)	1.79	Spectral class	A0IV (white)
Pri motion ra	-010	Sec motion ra	-010
Pri motion dec	+003	Sec motion dec	+003
Notes	W

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 150781	Constellation	Hercules	SAO	84550	HIP	81799
Tycho2	1532-00684-1	HD	150781	GC	22476	BD	BD+21 2970
Distance	190.48	Distance ly	621.35

WDS 16424+2136 STF 2085 AB (HD 150781) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
STFA		(F. Struve DD - Appendix list #1)	...................
STFB		(F. Struve DD - Appendix list #2)	...................
StF1833A	Ma -	Struve, F.G.W.	1833MmRAS...5...13H
StF1833A	+Mc	cited by Herschel (MemRAS 5, 13, 1833)
StF1833B	Ma -	Struve, F.G.W.	1833AN.....10..389B
StF1833B		cited by Bessel (AN 10, 389, 1833)
StF1837	Ma -	Struve, F.G.W.	1837AN.....14...249
StF1837		Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837		(Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A	Ma -	Struve, F.G.W.	1844QB43.S66.......
StF1844A		cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A	Ma -	Struve, F.G.W.	.
StF1852A		cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A	Ma -	Struve, F.G.W.	1865AN.....64...81E
StF1865A		cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A	Ma -	Struve, F.G.W.	1875AN.....85..323D
StF1875A		cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878	Ma -	Struve, F.G.W.	.
StF1878		Pulkova Observations 9, 1878
StF1878B	Ma -	Struve, F.G.W.	1878Obs.....2..239G
StF1878B		cited by Gledhill (Obs 2, 239, 1878)
StF1880A	Ma -	Struve, F.G.W.	1880Obs.....3..535G
StF1880A		cited by Gledhill (Obs 3, 535, 1880)
StF1906A	Ma -	Struve, F.G.W.	1906QB821.B972.....
StF1906A		cited in BDS (Burnham Double Star Cat.), 1906
StF1906B	Ma -	Struve, F.G.W.	1906MmRAS..56....1L
StF1906B		cited by Lewis (MemRAS 56, 1, 1906)
StF1922A	Ma -	Struve, F.G.W.	1922AN....216...49R
StF1922A		cited by Rabe (AN 216, 49, 1922)
StF1932A	Ma -	Struve, F.G.W.	1932QB821.A43......
StF1932A		cited in ADS (Aitken Double Star Cat.), 1932
StF2002	- -	Weis, J.
StF2002		F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002		USNO Library : QB 821 .S8 W49 2002
StF2022	- -	email note from Jan Weis: 6 July 2022
StF9999	Ma -	Struve, F.G.W.	...................
StF9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
16424+2136	STF2085	AB	2019	52	310	6.0	7.38	9.17	A0IV	W	164226.09+213534.3
16424+2136	STF2085	AB	2020	53	310	6.1	7.38	9.17	A0IV	W	164226.09+213534.3

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

WDS 16424+2136 STF 2085 AB (HD 150781) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 16424+2136 STF 2085 AB (HD 150781) : MEASURES

No records found.

WDS 16424+2136 (HD 150781) : 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 16424+2136 (HD 150781) : ALADIN DSS IMAGE @ 16^h 42^m 26.09^s +21° 35' 34.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 16424+2136 STF 2085 AB (HD 150781) : 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		16424+2136	STF2085	AB	310	6.1
Show		16421+2151	HU 487		96	0.2	17
Show		16415+2147	J 738		248	2.0	18
Show		16442+2200	J 1326	AB	235	2.6	30
Show		16442+2200	J 1326	AC	71	8.8	30
Show		16409+2157	HO 553		184	12.0	30
Show		16439+2101	SLW9008		213	7.8	41
Show		16435+2043	STTA149		134	96.2	55
Show		16393+2213	HDS2360		222	0.1	58
Show		16395+2217	CVR 836		348	12.2	59
Show		16472+2133	HU 665	AB	139	2.6	67
Show		16472+2133	GII 236	Aa,Ab	127	0.1	67
Show		16377+2130	TDT 9		27	0.4	67
Show		16388+2230	UC 3199		304	37.0	75
Show		16434+2251	POU3243		287	4.4	76
Show		16476+2106	TDT 90		74	1.0	78
Show		16395+2244	HU 486		165	1.3	80
Show		16484+2148	KPP1192		279	9.3	84
Show		16389+2028	STT 314		234	3.8	85
Show		16388+2245	HU 485		278	4.4	86
Show		16486+2123	STF2102	AB	274	14.2	87
Show		16486+2123	WAL 73	AC	150	37.2	87
Show		16382+2244	POU3235		232	5.4	90
Show		16396+2300	STF2079		91	16.7	94
Show		16495+2057	UC 3239		173	17.1	106
Show		16357+2225	UC 3189		13	42.1	106
Show		16463+2307	POU3244		336	14.0	106
Show		16348+2145	WSI 105		136	0.1	107
Show		16474+2300	HU 666		228	0.8	109
Show		16350+2214	COU 68		260	0.9	111
Show		16502+2219	OSO 74	AB	188	18.6	117
Show		16502+2219	OSO 74	AC	38	25.3	117
Show		16491+2027	LDS4697		79	194.4	117
Show		16442+2331	STF2094	AB	75	1.1	118
Show		16442+2331	STF2094	AC	312	24.9	118
Show		16442+2331	SMR 63	AD	14	44.7	118
Show		16350+2039	LDS4679		311	25.2	119
Show		16347+2232	CBL 509		252	40.0	122
Show		16489+2259	POU3246		167	16.9	122
Show		16417+2338	POU3241		29	3.3	123
Show		16405+2336	POU3237		156	11.3	124
Show		16462+1944	UC 3228		140	17.0	124
Show		16426+2340	STF2087	AB	287	5.3	125
Show		16426+2340	STF2087	AC	355	118.9	125
Show		16507+2047	TDT 111		230	0.8	125
Show		16457+1939	TOK 605		227	542.8	126
Show		16361+2309	TDS9996		194	0.9	129
Show		16510+2227	CRC 22		318	9.1	130
Show		16374+1947	TDS 826		201	1.3	130
Show		16348+2019	TDS9977		2	0.7	132
Show		16348+2016	SKF1646		343	1.3	134

WDS 16424+2136 : COMPONENTS

	A
B	pa=311.9° sep=5.85"

16424+2136 A

Name	HD 150781	Coord arcsec 2000	164226.09+213534.3	Mag	7.38	Spectral class	A0IV (white)
PmRA	-10.00	PmDE	3.0	SAO	84550	HIP	81799
Tycho2	1532-00684-1	HD	150781	GC	22476	BD	BD+21 2970

Tycho2

Tycho2	1532-00684-1	Pflag		RAmdeg	250.60869894	DEmdeg	21.59287302
PmRA	9.3	PmDE	-2.7	E RAmdeg	5	E DEmdeg	4
E pmRA	1.4	E pmDE	1.4	EpRAm	1991.57	EpDEm	1991.71
Num	7	Q RAmdeg	9.9	Q DEmdeg	3.8	Q pmRA	9.9
Q pmDE	3.9	BTmag	7.490	E BTmag	0.015	VTmag	7.383
E VTmag	0.011	Prox	61	TYC	T	HIP	81799
CCDM	A	RAdeg	250.60867917	DEdeg	21.59287889	EpRA 1990	1.84
EpDE 1990	1.83	E RAdeg	4.5	E DEdeg	4.4	Posflg
Corr	-0.2

SAO

SAO	84550	DelFlag		RA1950		PmRA1950	0.0005
DE1950		PmDE1950	-0.013	Vmag	7.3	SpType	A0
Double code		Source	70	CatNum	22476	DM	BD+21 2970
DMcomp		BDsup		HD	150781	M HD	0
GC	22476	RA1950rad	4.36458652	DE1950rad	0.37849604	PmRA2000	0.0006
PmDE2000	-0.011

Hipparcos

Catalog	H	HIP	81799	Proxy	H	RAhms	16 42 26.08
DEdms	+21 35 34.4	Vmag	7.21	VarFlag		R Vmag	H
RAdeg	250.609	DEdeg	21.5929	AstroRef	A	Plx	5.35
CCDM	16424+2136	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	309	Rho	6.072	HD	150781	BD	BD+21 2970
CD		CP		Dm number	+21 2970	VIred	0.06
SpType	A0...	R SpType		Coord arcsec 2000	164226.08+213534.4

Hipparcos 2

HIP	81799	Sn	15	So	3	Nc	2
RArad	4.3739466111	DErad	0.3768668103	Plx	5.25	PmRA	-9.7
PmDE	3.29	E RArad	0.38	E DErad	0.43	E Plx	0.69
E pmRA	0.39	E pmDE	0.45	Hpmag	7.2599	E Hpmag	0.0012
SHp	0.011	VA	0	BV	0.145	E BV	0.009
VI	0.16

CCDM

Ccdm	16424+2136	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.13	DDEs	-25.2
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.3	Sp	A0	PmNote	*
PmRA	17	PmDE	1	Dm number	+21 2970	Cat1	BD
Name2	+21 1626	Cat2	AGK2/3	HD	150781	M HD
ADS BDS	A10167	M ADS BDS		N IDS		IDS	16382N2147A
HIC	81799

16424+2136 B

Coord arcsec 2000	164225.78+213538.2		Mag	9.17		PmRA	-10.00		PmDE	3.0
Calc delta mag	1.79		Calc coord	yes

CCDM

Ccdm	16424+2136	RComp		Comp	B	Note1
Note2		Discov num	STF2085	DRAs	1.79	DDEs	-21.5
R dRAs	90	Year	1830	Theta	309	Rho	6.1
Obs	17	Vmag	8.8	Sp		PmNote
PmRA	17	PmDE	1	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A10167	M ADS BDS		N IDS		IDS	16382N2147B
HIC	81799