19236-3911 HDS 2746 (HD 181816)

19^h 23^m 38.12^s -39° 11' 03.8" P.A. 151.00 sep 19.7 mag 10.19,12.08 Sp F5V dist. 88.89 pc (289.96 l.y.)

Coord 2000	19236-3911	Discov num	HDS2746	Comp		Coord arcsec 2000	19 23 38.12 -39 11 03.8
Date first	1904	Date last	2015	Obs	8
Pa first	152	Pa last	151.1	P.A. Now (θ)	151.1°
Sep first	19.2	Sep last	19.658	Sep. Now (ρ)	19.658"
Mag pri	10.19	Mag sec	12.08	delta mag (ΔM)	1.89	Spectral class	F5V (yellow-white)
Pri motion ra	+004	Sec motion ra	+102
Pri motion dec	-003	Sec motion dec	-022
Notes	Y (Parallax indicates components are non-physical)

rPM=0.957

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 181816	Constellation	Sagittarius	HIP	95324	Tycho2	7931-00713-1
Gaia DR2	6738634573089963520	HD	181816	CD	CD-3913250	Distance	88.89
Distance ly	289.96

WDS 19236-3911 HDS 2746 (HD 181816) : NOTES

No records found.

DISCOVERER

discov	author
HDS	Hipparcos Double Star (from additional DD list)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
19236-3911	HDS2746		1998	5	151	19.6	10.19	12.08	F5V	-3913250	YD	192338.12-391103.8
19236-3911	HDS2746		2010	7	151	19.7	10.19	12.08	F5V	-3913250	Y	192338.12-391103.8
19236-3911	HDS2746		2015	8	151	19.7	10.19	12.08	F5V	-3913250	Y	192338.12-391103.8

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

WDS 19236-3911 HDS 2746 (HD 181816) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 19236-3911 HDS 2746 (HD 181816) : MEASURES

No records found.

WDS 19236-3911 (HD 181816) : VIRTUAL EYEPIECE

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WDS 19236-3911 (HD 181816) : ALADIN DSS IMAGE @ 19^h 23^m 38.12^s -39° 11' 03.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 19236-3911 HDS 2746 (HD 181816) : 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		19236-3911	HDS2746		151	19.7	0
Show		19237-3857	RSS 522		274	10.1	14
Show		19218-3849	UC 3905		292	14.0	31
Show		19211-3921	RST2102		73	1.3	32
Show		19259-3937	RSS 526		42	10.6	37
Show		19269-3900	I 1402		314	0.3	40
Show		19199-3925	UC 3887		78	20.1	46
Show		19237-3817	RSS 521		53	14.0	55
Show		19272-3953	HJ 5115		65	10.8	59
Show		19206-3959	HDS2736		224	0.3	60
Show		19273-4002	SEE 374		125	5.6	67
Show		19229-3806	RST2106		103	0.9	67
Show		19244-4019	UC 3917	AB	282	12.3	69
Show		19244-4019	GKM9424	Aa,Ab	119	0.1	69
Show		19182-3823	TOK 33	AB	52	9.3	80
Show		19182-3823	LWR 16	AC	337	2.9	80
Show		19182-3823	LWR 16	AD	108	4.5	80
Show		19182-3823	LWR 16	AE	276	13.9	80
Show		19182-3823	LWR 16	AF	201	11.6	80
Show		19300-3835	DAM 392		263	3.5	83
Show		19300-3834	B 436	CD	165	2.8	83
Show		19300-3834	B 436	AB	8	0.9	84
Show		19300-3834	B 436	AC	302	55.1	84
Show		19176-3957	RST2099		268	2.7	84
Show		19301-3830	UC 3958		133	47.1	86
Show		19311-3918	SKF2077		108	114.4	87
Show		19298-4007	KPP1413		169	10.6	91
Show		19163-3823	UC 3871		292	63.4	99
Show		19152-3926	UC 3867		42	26.4	99
Show		19269-3738	UC 3938		33	16.9	101
Show		19162-4004	LDS 675		265	112.7	101
Show		19194-3757	KOH 118		194	0.1	105
Show		19326-3921	KPP3113		120	1.7	105
Show		19197-4049	I 1036		80	0.5	109
Show		19156-4007	UC 3868		135	35.5	109
Show		19162-4022	WG 242		171	2.6	111
Show		19153-4006	TDT1324		82	0.5	112
Show		19292-4054	KPP1490		296	11.2	121
Show		19131-3902	WSI 135		329	1.4	123
Show		19294-4057	B 1385		166	0.1	125
Show		19336-4011	UC 3976	AB	246	7.2	130
Show		19296-3718	TOI1123		292	0.4	133
Show		19351-3904	UC 3981		225	103.2	134
Show		19151-4053	I 1085		275	2.3	142
Show		19340-4028	UC 3979		161	17.7	142
Show		19348-3805	SEE 380	AB	97	6.9	147
Show		19148-4058	I 1084		71	1.8	148
Show		19229-4141	B 1383		236	0.3	151
Show		19132-4044	I 1396		92	5.4	152
Show		19131-4047	I 1033		178	0.4	155
Show		19336-4057	RST2110		291	0.3	156

WDS 19236-3911 : COMPONENTS

	A
B	pa=151.1° sep=19.66"

19236-3911 A

Name	HD 181816	Coord arcsec 2000	192338.12-391103.8	Mag	10.19	Spectral class	F5V (yellow-white)
PmRA	4.00	PmDE	-3.0	HIP	95324	Tycho2	7931-00713-1
HD	181816	CD	CD-3913250

Tycho2

Tycho2	7931-00713-1	Pflag		RAmdeg	290.90884089	DEmdeg	-39.18438558
PmRA	5.8	PmDE	-2.2	E RAmdeg	26	E DEmdeg	33
E pmRA	2.1	E pmDE	2.0	EpRAm	1989.97	EpDEm	1988.41
Num	3	Q RAmdeg	0.0	Q DEmdeg	0.5	Q pmRA	0.0
Q pmDE	0.4	BTmag	10.550	E BTmag	0.047	VTmag	10.191
E VTmag	0.047	Prox	197	TYC	T	HIP	95324
CCDM	A	RAdeg	290.90882389	DEdeg	-39.18438028	EpRA 1990	1.72
EpDE 1990	1.74	E RAdeg	25.9	E DEdeg	33.5	Posflg
Corr	-0.1

Hipparcos

Catalog	H	HIP	95324	Proxy		RAhms	19 23 38.12
DEdms	-39 11 03.7	Vmag	10.01	VarFlag		R Vmag	H
RAdeg	290.909	DEdeg	-39.1844	AstroRef	A	Plx	11.27
CCDM	4.61	N CCDM	I	Nsys	2	Ncomp	1
MultFlag	C	Source	P	Qual	D	M HIP
Theta		Rho		HD		BD
CD	CD-3913250	CP		Dm number	-3913250	VIred	0.58
SpType	F5V	R SpType		Coord arcsec 2000	192338.12-391103.7

Hipparcos 2

HIP	95324	Sn	95	So	3	Nc	1
RArad	5.0773166855	DErad	-0.6838963359	Plx	11.25	PmRA	2.14
PmDE	-4.82	E RArad	2.41	E DErad	1.77	E Plx	2.61
E pmRA	2.78	E pmDE	1.72	Hpmag		E Hpmag	0.0595
SHp	0.044	VA	0	BV	0.527	E BV	0.056
VI	0.6

CCDM

Ccdm	19236-3911	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.10	DDEs	-4.6
R dRAs	40	Year		Theta		Rho
Obs	2	Vmag	10.0	Sp	F8	PmNote
PmRA		PmDE		Dm number	-3913250	Cat1	CD
Name2		Cat2		HD	181816	M HD
ADS BDS		M ADS BDS		N IDS	*	IDS	19168S3923A
HIC	95324

19236-3911 B

Coord arcsec 2000	192338.94-391121.0		Mag	12.08		PmRA	102.00		PmDE	-22.0
Delta magnitude	1.89		Coordinate calculated	yes

CCDM

Ccdm	19236-3911	RComp		Comp	B	Note1
Note2		Discov num	RSU	DRAs	2.95	DDEs	-21.5
R dRAs	40	Year	1975	Theta	150	Rho	19.5
Obs	1	Vmag	12.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS	*	IDS	19168S3923B
HIC	95326