21501-3837 TOK 36 (HD 207450)

21^h 50^m 04.89^s -38° 36' 51.4" P.A. 144.00 sep 2.2 mag 6.10,9.60 Sp G0V dist. 54.67 pc (178.33 l.y.)

Coord 2000	21501-3837	Discov num	TOK 36	Comp		Coord arcsec 2000	21 50 04.89 -38 36 51.4
Date first	2004	Date last	2005	Obs	3
Pa first	145	Pa last	144.3	P.A. Now (θ)	144.3°
Sep first	2.2	Sep last	2.233	Sep. Now (ρ)	2.233"
Mag pri	6.10	Mag sec	9.60	delta mag (ΔM)	3.5	Spectral class	G0V (yellow)
Pri motion ra	+139	Sec motion ra
Pri motion dec	-176	Sec motion dec
Notes	N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 207450	Constellation	Grus	SAO	213325	HIP	107779
Tycho2	7982-01073-1	HD	207450	GC	30553	CD	CD-3914449
CP	CP-39 9030	Distance	54.67	Distance ly	178.33

WDS 21501-3837 TOK 36 (HD 207450) : NOTES

discov_num	notes	refcode
TOK 36	Confirmed as physical pair by 2nd epoch observation and J-K color.
	Primary is 4.9d SB. Estimated period of visual pair 900 y.	Tok2006

REFERENCES

refcode	metd	author	reference
Tok2006	A j	Tokovinin, A., Thomas, S., Sterzik, M., & Udry, S.	2006A&A...450..681T
Tok2006	+E2	A&A 450, 681, 2006

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21501-3837	TOK 36		2005	3	144	2.2	7.40			N D	215004.89-383651.4

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WDS 21501-3837 TOK 36 (HD 207450) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21501-3837 TOK 36 (HD 207450) : MEASURES

No records found.

WDS 21501-3837 (HD 207450) : VIRTUAL EYEPIECE

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WDS 21501-3837 (HD 207450) : ALADIN DSS IMAGE @ 21^h 50^m 04.89^s -38° 36' 51.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21501-3837 TOK 36 (HD 207450) : 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		21501-3837	TOK 36		144	2.2
Show		21481-3839	HDS3105		163	0.2	24
Show		21520-3801	TDT3203		38	0.6	42
Show		21465-3843	B 536		267	1.0	43
Show		21498-3750	B 539		321	1.5	47
Show		21495-3749	LDS5927		107	4.4	50
Show		21461-3820	RST2186		250	3.7	51
Show		21543-3828	I 1448	AB	146	3.1	51
Show		21543-3828	LDS4922	AC	59	46.3	51
Show		21517-3747	LDS6364		121	5.1	53
Show		21483-3749	LDS 756		34	22.3	53
Show		21488-3929	CVN 111		277	0.4	55
Show		21542-3802	B 543		242	2.9	60
Show		21483-3742	B 538		211	1.8	60
Show		21449-3742	TDT3133		110	0.5	83
Show		21571-3847	RST2189		201	0.8	84
Show		21434-3917	B 535		208	4.9	88
Show		21424-3829	WG 277		56	4.7	91
Show		21543-3957	HJ 5299		57	34.9	94
Show		21450-3724	KPP3093		187	8.4	95
Show		21430-3926	WG 276		37	4.2	96
Show		21558-3953	WG 279		27	4.1	99
Show		21425-3756	HJ 5288		60	19.7	99
Show		21559-3719	UC 4600		202	31.3	104
Show		21552-3705	ALD 78		42	3.1	110
Show		21434-3708	WIS 351		70	359.5	119
Show		21525-4034	CRU9029		68	90.5	121
Show		21473-4034	SKF 380		247	7.6	122
Show		21399-3759	RST2184		56	0.7	126
Show		21398-3916	WG 275		44	2.9	127
Show		21393-3828	HJ 5283		91	11.6	128
Show		21459-3640	JSP 827	AB	108	0.5	128
Show		21459-3640	SKF1253	AB,C	70	43.5	128
Show		21419-3710	BVD 154		100	31.9	131
Show		21599-3944	TDT3283		246	0.4	133
Show		21560-3644	UC 4602		45	25.1	134
Show		21509-4052	CRU 2	AB	307	23.2	136
Show		21509-4052	CRU 2	AC	48	58.4	136
Show		21434-4033	CPO 626		154	9.7	139
Show		21383-3827	RST2182		100	0.8	139
Show		21529-4052	I 1447		272	4.1	140
Show		21578-4024	CRU9031		69	84.9	140
Show		21446-3632	SKF2808		111	2.9	141
Show		22007-3959	UC 4627		200	45.5	148
Show		21507-3607	BRT1825		143	3.3	151
Show		22020-3933	TDT3299		64	1.6	151
Show		21458-3612	DEA 10		34	108.9	154
Show		21549-3610	LDS 763	AB	341	57.6	158
Show		21549-3610	LDS5935	BC	3	49.6	159
Show		22000-4032	HDS3124		128	0.1	163
Show		21565-4102	HJ 5305		243	19.7	163

WDS 21501-3837 : COMPONENTS

	A
B	pa=150.7° sep=2.08"

21501-3837 A

Componente originario normalizzato	AB	Name	HD 207450	Coord arcsec 2000	215004.89-383651.4	Mag	6.1
Spectral class	G0V (yellow)	PmRA	139.00	PmDE	-176.0	SAO	213325
HIP	107779	Tycho2	7982-01073-1	HD	207450	GC	30553
CD	CD-3914449	CP	CP-39 9030

Tycho2

Tycho2	7982-01073-1	Pflag		RAmdeg	327.52079909	DEmdeg	-38.61472348
PmRA	140.1	PmDE	-177.3	E RAmdeg	4	E DEmdeg	5
E pmRA	1.3	E pmDE	1.4	EpRAm	1991.56	EpDEm	1991.03
Num	16	Q RAmdeg	0.8	Q DEmdeg	0.8	Q pmRA	0.7
Q pmDE	0.7	BTmag	8.147	E BTmag	0.016	VTmag	7.513
E VTmag	0.011	Prox	999	TYC	T	HIP	107779
CCDM		RAdeg	327.52038611	DEdeg	-38.61429194	EpRA 1990	1.71
EpDE 1990	1.24	E RAdeg	4.2	E DEdeg	5.3	Posflg
Corr	-0.1

SAO

SAO	213325	DelFlag		RA1950		PmRA1950	0.0133
DE1950		PmDE1950	-0.182	Vmag	7.2	SpType	F8
Double code		Source	70	CatNum	30553	DM	CD-3914449
DMcomp		BDsup		HD	207450	M HD	0
GC	30553	RA1950rad	5.70298047	DE1950rad	-0.67799491	PmRA2000	0.0134
PmDE2000	-0.185

Hipparcos

Catalog	H	HIP	107779	Proxy		RAhms	21 50 04.89
DEdms	-38 36 51.4	Vmag	7.45	VarFlag		R Vmag	H
RAdeg	327.52	DEdeg	-38.6143	AstroRef		Plx	20.39
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	207450	BD
CD	CD-3914449	CP	CP-39 9030	Dm number	-3914449	VIred	0.65
SpType	G0V	R SpType		Coord arcsec 2000	215004.89-383651.4

Hipparcos 2

HIP	107779	Sn	5	So	0	Nc	1
RArad	5.7163087203	DErad	-0.6739465064	Plx	18.29	PmRA	139.07
PmDE	-176.27	E RArad	0.54	E DErad	0.32	E Plx	0.63
E pmRA	0.63	E pmDE	0.35	Hpmag	7.5767	E Hpmag	0.001
SHp	0.008	VA	0	BV	0.573	E BV	0.003
VI	0.65

21501-3837 B

Componente originario normalizzato	AB		Coord arcsec 2000	215004.98-383653.2		Mag	9.6		Calc delta mag	3.5
Calc coord	yes