23442-6424 DUN 254 (HD 222820)

23^h 44^m 12.05^s -64° 24' 16.0" P.A. 8.00 sep 241.9 mag 5.87,7.20 Sp K2III+K1 dist. 223.21 pc (728.11 l.y.)

Coord 2000	23442-6424	Discov num	DUN 254	Comp		Coord arcsec 2000	23 44 12.05 -64 24 16.0
Date first	1909	Date last	2015	Obs	13
Pa first	8	Pa last	8	P.A. Now (θ)	8°
Sep first	239.3	Sep last	241.9	Sep. Now (ρ)	241.9"
Mag pri	5.87	Mag sec	7.20	delta mag (ΔM)	1.33	Spectral class	K2III+K1 (yellow-orange/yellow-orange)
Pri motion ra	+015	Sec motion ra	+031
Pri motion dec	+034	Sec motion dec	-002
Notes	S W (Parallax indidates non-physical, )

rPM=1.06

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 222820	Constellation	Tucana	SAO	255557	HIP	117088
Tycho2	9130-01677-1	HD	222820	HR	8996	GC	32953
CP	CP-65 4159	FK5	3904	Distance	223.21	Distance ly	728.11

WDS 23442-6424 DUN 254 (HD 222820) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Dun1829	Ma -	Dunlop, J.	1829MmRAS...3..257D
Dun1829		MemRAS 3, 257, 1829
Dun1829		some measures corrected in LRR2022

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
23442-6424	DUN 254		2015	13	8	241.9	5.87	7.20	K2III+K1	SW	234412.05-642416.0

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WDS 23442-6424 DUN 254 (HD 222820) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 23442-6424 DUN 254 (HD 222820) : MEASURES

No records found.

WDS 23442-6424 (HD 222820) : VIRTUAL EYEPIECE

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WDS 23442-6424 (HD 222820) : ALADIN DSS IMAGE @ 23^h 44^m 12.05^s -64° 24' 16.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 23442-6424 DUN 254 (HD 222820) : 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		23442-6424	DUN 254		8	241.9	1
Show		23431-6447	TOK 353		234	41.4	25
Show		23404-6413	TDT4145		281	0.5	28
Show		23365-6405	HJ 5407		10	9.6	54
Show		23409-6518	TDT4148		184	1.4	59
Show		23353-6434	WJG 4	AB	26	22.3	59
Show		23353-6434	TOI 131	Aa,Ab	11	0.1	59
Show		23352-6441	HJ 5403		42	35.0	61
Show		23495-6516	TDT4219		77	1.0	62
Show		23337-6414	BVD 143		276	47.9	70
Show		23362-6513	RST1170		328	0.3	71
Show		23405-6313	RST1173		186	2.0	76
Show		23330-6347	NSC 33		323	2.9	82
Show		23576-6418	EHR 22	A,Ba	107	13.0	88
Show		23576-6418	EHR 22	A,Bb	108	12.2	88
Show		23576-6418	EHR 22	Ba,Bb	275	0.8	88
Show		23401-6252	B 609		279	1.9	97
Show		23545-6312	WIS 396		218	43.2	100
Show		23570-6328	HDS3398		169	0.8	102
Show		23338-6544	NSN 438		311	3.6	104
Show		23537-6557	HJ 5428	AB	112	12.2	111
Show		23537-6557	SHY 108	AC	331	999.9	111
Show		23365-6245	HDS3359		120	0.3	112
Show		23564-6546	DON1055		313	2.9	113
Show		23576-6547	KPP3081		30	5.7	118
Show		23596-6534	UC 5058		163	79.0	120
Show		23561-6252	B 626		257	7.8	122
Show		23316-6255	NSN 456		341	7.5	123
Show		23402-6224	CTI 639		84	1.1	123
Show		23573-6257	DRS 70		329	0.4	124
Show		23248-6358	UC 4945		40	38.7	130
Show		23276-6543	UC 4958		121	19.1	132
Show		23366-6219	RST1171		353	3.6	136
Show		23265-6314	HU 1648		288	1.6	137
Show		23372-6644	KPP2219		179	18.4	146
Show		23495-6647	UC 5029		288	19.9	147
Show		23486-6200	TDT4207		257	2.8	148
Show		23394-6159	RST3330		138	3.1	149
Show		23271-6635	HDS3340		26	0.3	169
Show		23339-6141	NZO 108		207	3.6	178
Show		23543-6140	TDT4262		335	0.9	178
Show		23339-6139	RST3326		150	1.3	180
Show		23375-6130	TDT4130		176	0.6	180
Show		23522-6126	CBL 601		58	127.8	187
Show		23251-6655	LDS 814		85	29.5	192
Show		23434-6106	KPP4326		36	3.2	199
Show		23503-6107	HJ 5425	AB	277	13.6	203
Show		23503-6107	BAU 77	AC	59	58.6	203
Show		23588-6738	TDT4303		253	1.7	214
Show		23489-6757	LDS 824		93	35.5	215
Show		23492-6046	I 697		124	8.2	222

WDS 23442-6424 : COMPONENTS

	A
B	pa=3.5° sep=239.99"

23442-6424 A

Componente originario normalizzato	AB	Name	HD 222820	Coord arcsec 2000	234412.05-642416.0	Mag	5.87
Spectral class	K2III (yellow-orange)	PmRA	15.00	PmDE	34.0	SAO	255557
HIP	117088	Tycho2	9130-01677-1	HD	222820	HR	8996
GC	32953	CP	CP-65 4159	FK5	3904

Tycho2

Tycho2	9130-01677-1	Pflag		RAmdeg	356.05018948	DEmdeg	-64.40445167
PmRA	14.6	PmDE	34.5	E RAmdeg	4	E DEmdeg	4
E pmRA	1.0	E pmDE	1.0	EpRAm	1991.30	EpDEm	1991.24
Num	15	Q RAmdeg	0.8	Q DEmdeg	0.5	Q pmRA	0.7
Q pmDE	0.6	BTmag	7.550	E BTmag	0.015	VTmag	5.874
E VTmag	0.009	Prox	999	TYC	T	HIP	117088
CCDM		RAdeg	356.05011139	DEdeg	-64.40453222	EpRA 1990	1.66
EpDE 1990	1.60	E RAdeg	3.6	E DEdeg	3.5	Posflg
Corr	0.1

SAO

SAO	255557	DelFlag		RA1950		PmRA1950	0.0029
DE1950		PmDE1950	0.032	Vmag	5.7	SpType	K5
Double code		Source	70	CatNum	32953	DM	CP-65 4159
DMcomp		BDsup		HD	222820	M HD	0
GC	32953	RA1950rad	6.20229488	DE1950rad	-1.12892529	PmRA2000	0.0019
PmDE2000	0.029

Hipparcos

Catalog	H	HIP	117088	Proxy		RAhms	23 44 12.03
DEdms	-64 24 16.3	Vmag	5.73	VarFlag		R Vmag	H
RAdeg	356.05	DEdeg	-64.4045	AstroRef		Plx	3.71
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	222820	BD
CD		CP	CP-65 4159	Dm number	-65 4159	VIred	1.41
SpType	K3II	R SpType		Coord arcsec 2000	234412.03-642416.3

Hipparcos 2

HIP	117088	Sn	5	So	0	Nc	1
RArad	6.2142466899	DErad	-1.124071192	Plx	4.48	PmRA	15.4
PmDE	34.38	E RArad	0.26	E DErad	0.28	E Plx	0.36
E pmRA	0.34	E pmDE	0.37	Hpmag	5.8698	E Hpmag	0.0006
SHp	0.009	VA	0	BV	1.393	E BV	0.033
VI	1.41

23442-6424 B

Componente originario normalizzato	AB		Coord arcsec 2000	234414.29-642016.5		Mag	7.2		Spectral class	K1 (yellow-orange)
PmRA	31.00		PmDE	-2.0		Calc delta mag	1.33		Calc coord	yes