17226-2049 DON 833 (HD 157186)

17^h 22^m 37.18^s -20° 49' 13.8" P.A. 257.00 sep 7.8 mag 9.04,12.50 Sp G8/K0IV

Coord 2000	17226-2049	Discov num	DON 833	Comp		Coord arcsec 2000	17 22 37.18 -20 49 13.8
Date first	1933	Date last	2015	Obs	7
Pa first	248	Pa last	257.1	P.A. Now (θ)	257.1°
Sep first	5.8	Sep last	7.819	Sep. Now (ρ)	7.819"
Mag pri	9.04	Mag sec	12.50	delta mag (ΔM)	3.46	Spectral class	G8/K0IV (yellow)
Pri motion ra	+023	Sec motion ra
Pri motion dec	-013	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 157186		Constellation	Ophiuchus		SAO	185334		Tycho2	6246-00170-1
Gaia DR2	4121155604527974656		HD	157186

WDS 17226-2049 DON 833 (HD 157186) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Don1937	Ma j	Donner, H.F.	1937MmRAS..65...51R
Don1937		MemRAS 65, 51, 1937
Don1955	Ma -	Donner, H.F.	1955POMic..11....1R
Don1955		Pub. Univ. Michigan Obs. 11, 1, 1955
Don1964	Ma j	Donner, H.F.	1964POMic...9...73R
Don1964		Pub. Univ. Michigan Obs. 9, 73, 1964

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17226-2049	DON 833		1999	4	256	7.5	9.04	12.50	G8/K0IV	D	172237.18-204913.8
17226-2049	DON 833		2000	6	256	7.5	9.04	12.50	G8/K0IV	D	172237.18-204913.8
17226-2049	DON 833		2015	7	257	7.8	9.04	12.50	G8/K0IV		172237.18-204913.8

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WDS 17226-2049 DON 833 (HD 157186) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17226-2049 DON 833 (HD 157186) : MEASURES

No records found.

WDS 17226-2049 (HD 157186) : VIRTUAL EYEPIECE

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WDS 17226-2049 (HD 157186) : ALADIN DSS IMAGE @ 17^h 22^m 37.18^s -20° 49' 13.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17226-2049 DON 833 (HD 157186) : 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		17226-2049	DON 833		257	7.8
Show		17221-2044	SEE 326		7	0.9	10
Show		17228-2024	TDT 327		83	0.6	26
Show		17210-2107	DON 832	AB	26	4.1	29
Show		17210-2107	TNN 8	AC	261	10.8	29
Show		17250-2022	DON 838		340	0.4	44
Show		17226-2004	B 2834		354	6.5	46
Show		17247-2126	HLD 134		140	4.5	48
Show		17200-2119	RST3086		265	2.6	48
Show		17238-2138	HDS2456		205	0.1	52
Show		17221-2138	LDS 594		99	4.8	53
Show		17190-2034	RSS 435		303	19.8	53
Show		17189-2029	ARA1124		73	6.6	56
Show		17236-2143	HLD 133		171	0.9	56
Show		17200-2132	HU 750		112	1.9	57
Show		17200-1959	I 592		270	14.7	63
Show		17264-2123	OCC1097		-1	0.0	63
Show		17257-2138	TDT 345		303	1.7	66
Show		17189-2005	ARA 713		300	7.1	69
Show		17267-2128	OCC9164		-1	0.1	70
Show		17226-1937	MOC 12	AB	14	2.8	73
Show		17226-1937	MOC 12	AC	241	4.3	73
Show		17226-1937	MOC 12	AD	177	5.0	73
Show		17268-1959	I 599		133	2.2	78
Show		17199-1941	A 2240		203	1.6	79
Show		17283-2058	A 2244	AB	51	0.1	80
Show		17283-2058	OCC1098	Aa,Ab	-1	0.1	80
Show		17233-1927	HDS2455		314	0.4	83
Show		17245-2217	RST3094		16	1.0	92
Show		17206-1920	A 2241	AB	70	5.3	94
Show		17206-1920	OCC 529	Aa,Ab	-1	1.3	94
Show		17159-2056	REP 47		66	4.4	95
Show		17262-1930	GWP2712		70	11.9	95
Show		17264-1931	HJ 4953		174	18.4	95
Show		17293-2115	OCC 410		-1	0.1	97
Show		17178-1940	BHA 18		40	6.0	97
Show		17258-1918	RST5542	AB	289	0.1	102
Show		17258-1918	HLD 135	AB,C	89	2.6	102
Show		17188-1915	I 591		36	1.1	109
Show		17303-2119	OCC1099		-1	0.0	112
Show		17200-2234	RST3087		29	1.0	112
Show		17151-1951	B 336	AB	230	9.7	122
Show		17151-1951	B 336	BC	163	3.7	122
Show		17244-2248	B 339	AB	207	3.6	122
Show		17244-2248	HJ 4948	AC	106	13.3	122
Show		17152-2154	KPP4030		289	3.1	123
Show		17219-1846	SLE 14		290	16.3	124
Show		17216-2252	TDT 320		71	0.5	124
Show		17165-1920	BU 958		210	1.9	125
Show		17151-2156	HU 749		151	1.9	125
Show		17311-2129	RST3107		226	0.4	125

WDS 17226-2049 : COMPONENTS

	A
B	pa=256.2° sep=7.33"

17226-2049 A

Componente originario normalizzato	AB	Name	HD 157186	Coord arcsec 2000	172237.18-204913.8	Mag	9.04
Spectral class	G8/K0IV (yellow)	PmRA	23.00	PmDE	-13.0	SAO	185334
Tycho2	6246-00170-1	HD	157186	DM	BD-20 4747

Tycho2

Tycho2	6246-00170-1	Pflag		RAmdeg	260.65498259	DEmdeg	-20.82051844
PmRA	22.4	PmDE	-11.0	E RAmdeg	11	E DEmdeg	16
E pmRA	1.5	E pmDE	1.5	EpRAm	1989.74	EpDEm	1987.65
Num	7	Q RAmdeg	0.6	Q DEmdeg	0.9	Q pmRA	0.7
Q pmDE	1.0	BTmag	10.309	E BTmag	0.034	VTmag	9.042
E VTmag	0.019	Prox	999	TYC	T	HIP
CCDM		RAdeg	260.65492750	DEdeg	-20.82049167	EpRA 1990	1.71
EpDE 1990	1.29	E RAdeg	11.9	E DEdeg	16.7	Posflg
Corr	0.0

SAO

SAO	185334	DelFlag		RA1950		PmRA1950	0.0009
DE1950		PmDE1950	0.015	Vmag	8.7	SpType	K0
Double code		Source	23	CatNum	7113	DM	BD-20 4747
DMcomp		BDsup		HD	157186	M HD	0
GC		RA1950rad	4.53627871	DE1950rad	-0.36256105	PmRA2000	0.0009
PmDE2000	0.017

CCDM

Ccdm	17226-2049	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.15	DDEs	-12.0
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.6	Sp	K0	PmNote	*
PmRA	13	PmDE	15	Dm number	-20 4747	Cat1	BD
Name2	185334	Cat2	SAO	HD	157186	M HD
ADS BDS		M ADS BDS		N IDS		IDS	17167S2043A
HIC

17226-2049 B

Componente originario normalizzato	AB		Coord arcsec 2000	172236.67-204915.5		Mag	12.5		Calc delta mag	3.46
Calc coord	yes

CCDM

Ccdm	17226-2049	RComp		Comp	B	Note1
Note2		Discov num	DON 833	DRAs		DDEs
R dRAs		Year	1933	Theta	248	Rho	5.9
Obs	2	Vmag	12.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	17167S2043B
HIC