15501+3046 HDS 2230 AB

15^h 50^m 03.50^s +30° 45' 39.6" P.A. 313.00 sep 1.8 mag 10.27,13.79 Sp K2 dist. 404.86 pc (1320.65 l.y.)

Coord 2000	15501+3046	Discov num	HDS2230	Comp	AB	Coord arcsec 2000	15 50 03.50 +30 45 39.6
Date first	1991	Date last	2016	Obs	5
Pa first	312	Pa last	312.8	P.A. Now (θ)	312.8°
Sep first	1.8	Sep last	1.807	Sep. Now (ρ)	1.807"
Mag pri	10.27	Mag sec	13.79	delta mag (ΔM)	3.52	Spectral class	K2 (yellow-orange)
Pri motion ra	+005	Sec motion ra	+005
Pri motion dec	-002	Sec motion dec	-002
Notes

Nature of this double is uncertain.

15501+3046 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			15 50 04 +30 45 40	GII 224 Aa,Ab	2013	1	16	0.2	11.00	11.00	0.00
Show			15 50 04 +30 45 40	HDS 2230 AB	2016	5	313	1.8	10.27	13.79	3.52		<===

Triple system
2 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Corona Borealis		HIP	77555		Tycho2	2572-00442-1		BD	BD+31 2788
Distance	404.86		Distance ly	1320.65

WDS 15501+3046 HDS 2230 AB : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Gii1991	Ma j	Gili, R.	1991AN....312...41G
Gii1991		AN 312, 41, 1991
Gii1994	M+ j	Gili, R. (Couteau & Gili)	1994A&AS..106..377G
Gii1994	+C	A&AS 106, 377, 1994
Gii1997	M+ j	Gili, R. & Couteau, P.	1997A&AS..126....1G
Gii1997	+C	A&AS 126, 1, 1997
Gii2001	C j	Gili, R. & Bonneau, D.	2001A&A...378..954G
Gii2001		A&A 378, 954, 2001
Gii2008	C j	Gili, R.	2008IAUDS.165....1G
Gii2008		Inf. Circ. 165, 1, 2008
Gii2009	S j	Gili, R.	2009IAUDS.168....1G
Gii2009	+orb	Inf. Circ. 168, 1, 2009
Gii2009b	C j	Gili, R. & Agati, J.-L.	2009O&T....73....9G
Gii2009b	+S	Obs. et Travaux 73, 9, 2009
Gii2009c	C j	Gili, R. & Agati, J.-L.	2009O&T....74...14G
Gii2009c	+S	Obs. et Travaux 74, 14, 2009
Gii2012	S j	Gili, R. & Prieur, J.-L.	2012AN....333..727G
Gii2012	+Cl	AN 333, 727, 2012
Gii2016	S j	Gili, R.	2016IAUDS.190....4G
Gii2016	+Cl	Inf. Circ. 190, 4, 2016
Gii2016b	Cl	Gili, R.
Gii2016b		private comm. (email 27 Aug 2016)
Gii2020	S	Gili, R., Prieur, J.-L., Rivet, J.-P., Scardia, M., Pansecchi, L., Argyle, R.W.,	2020AN....341..441G
Gii2020	+Cl	Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D. & Maccarini, L.
Gii2020		AN 341, 441, 2020
Gii2021	S	Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L.,	2021AN....342..865G
Gii2021		Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
Gii2021		Maccarini, L. & Serot, J.
Gii2021		AN 342, 865, 2021
Gii2022	S	Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L.,	2022AN....34324008G
Gii2022		Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
Gii2022		Maccarini, L. & Serot, J.
Gii2022		AN 343, 24008, 2022
Gii2022		errata for Gii2022 (source of code "P" measures in wds)	2023AN....34437001G
Gii2022		AN 344, 37001, 2023
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	notes	coord_arcsec_2000
15501+3046	HDS2230	AB	2016	5	313	1.8	10.27	13.79	K2		155003.50+304539.6

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WDS 15501+3046 HDS 2230 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15501+3046 HDS 2230 AB : MEASURES

No records found.

WDS 15501+3046 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 15501+3046 : ALADIN DSS IMAGE @ 15^h 50^m 03.50^s +30° 45' 39.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15501+3046 HDS 2230 AB : 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		15501+3046	HDS2230	AB	313	1.8
Show		15501+3046	GII 224	Aa,Ab	16	0.2
Show		15488+3036	GRV 914		74	16.1	19
Show		15503+3114	HJ 2792		351	27.0	30
Show		15475+3044	KPP3296		142	2.0	33
Show		15511+3008	TDS9660		322	1.9	41
Show		15503+3003	LDS4592		129	38.2	43
Show		15523+3119	HJ 2795	AB	29	12.4	45
Show		15470+3010	BRT 254		131	5.3	53
Show		15547+3048	UC 3088		44	11.0	60
Show		15524+2948	UC 3074		213	30.5	66
Show		15441+3046	TDS9607		121	0.8	78
Show		15550+2953	HJ 2797		76	34.5	83
Show		15566+3031	KPP1287		333	9.8	87
Show		15514+2921	COU 617		98	4.7	87
Show		15518+3211	LDS4596		40	114.8	89
Show		15451+2936	COU 614		40	0.3	95
Show		15503+3224	HJ 574	AB	94	15.8	99
Show		15503+3224	HJ 574	AC	96	76.4	99
Show		15554+2932	HO 399		116	3.6	102
Show		15573+3005	HJ 2800		283	14.5	103
Show		15578+3023	KPP2351		334	20.1	103
Show		15418+3054	HDS2217		178	0.1	107
Show		15585+3112	TDS9706		9	0.4	112
Show		15419+3128	PRY 1		112	5.6	114
Show		15488+3241	COU 801		196	1.5	116
Show		15415+3129	TDS9590		108	2.7	119
Show		15558+2912	DOO 61	AB	251	50.1	121
Show		15498+2839	UC 213		59	9.7	127
Show		15403+3019	BRT 253		268	5.4	130
Show		15406+3128	COU 613		25	0.2	130
Show		15562+2857	LDS4607		265	23.4	135
Show		15588+3205	GRV 918		347	14.0	138
Show		15478+3301	HDS2225		327	0.3	139
Show		15576+3225	TOK 304		219	256.4	139
Show		15393+3033	GRV 909		262	27.1	139
Show		15404+3151	TDS 782		61	1.3	140
Show		15524+3303	KPP2107		264	17.0	141
Show		15575+3231	HJ 578		163	10.1	142
Show		15474+2828	TDS9623		310	2.0	142
Show		15408+2926	TDS9588		51	0.6	144
Show		15569+3244	COU 803		217	1.6	147
Show		15415+3225	LDS4584		356	45.8	148
Show		15498+2817	TDS9648		159	0.7	149
Show		15392+3140	TDS9577		112	0.4	150
Show		15485+2817	TDS9637		99	1.0	151
Show		15423+2853	CRB 1		222	16.1	152
Show		15508+2814	TDS9656	AB	45	0.7	152
Show		16019+3027	LDS4626		273	104.8	154
Show		15523+2814	TDS9668		210	0.7	155
Show		16022+3048	TDS9737		180	2.9	157

WDS 15501+3046 : COMPONENTS

	A	Ab
Ab	pa=13.7° sep=0.20"
B	pa=317.1° sep=1.67"	pa=311.1° sep=1.57"

15501+3046 A

Coord arcsec 2000	155003.50+304539.6		Mag	10.27		Spectral class	K2 (yellow-orange)		PmRA	5.00
PmDE	-2.0		HIP	77555		Tycho2	2572-00442-1		BD	BD+31 2788

Tycho2

Tycho2	2572-00442-1	Pflag		RAmdeg	237.51456627	DEmdeg	30.76099768
PmRA	4.8	PmDE	-1.8	E RAmdeg	22	E DEmdeg	20
E pmRA	1.5	E pmDE	1.5	EpRAm	1986.74	EpDEm	1987.31
Num	9	Q RAmdeg	1.4	Q DEmdeg	0.9	Q pmRA	1.5
Q pmDE	0.8	BTmag	11.859	E BTmag	0.072	VTmag	10.270
E VTmag	0.030	Prox	18	TYC	T	HIP	77555
CCDM	A	RAdeg	237.51455778	DEdeg	30.76100139	EpRA 1990	1.57
EpDE 1990	1.69	E RAdeg	27.1	E DEdeg	24.1	Posflg
Corr	-0.1

Hipparcos

Catalog	H	HIP	77555	Proxy	H	RAhms	15 50 03.49
DEdms	+30 45 39.6	Vmag	10.08	VarFlag		R Vmag	H
RAdeg	237.515	DEdeg	30.761	AstroRef	A	Plx	2.2
CCDM	15501+3046	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	D	M HIP	AB
Theta	312	Rho	1.806	HD		BD	BD+31 2788
CD		CP		Dm number	+31 2788	VIred	1.17
SpType	K2	R SpType		Coord arcsec 2000	155003.49+304539.6

Hipparcos 2

HIP	77555	Sn	15	So	3	Nc	2
RArad	4.1454109869	DErad	0.536880869	Plx	2.47	PmRA	4.49
PmDE	-2.51	E RArad	0.99	E DErad	1.11	E Plx	1.53
E pmRA	1.07	E pmDE	1.38	Hpmag	10.2443	E Hpmag	0.0029
SHp	0.036	VA	0	BV	1.215	E BV	0.197
VI	1.17

CCDM

Ccdm	15501+3046	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.50	DDEs	-20.4
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	10.3	Sp	K2	PmNote	*
PmRA	5	PmDE	-2	Dm number	+31 2788	Cat1	BD
Name2	+30 1459	Cat2	AGK2/3	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	77555

15501+3046 Ab

Coord arcsec 2000

155003.50+304539.8

Mag

Calc coord

yes

15501+3046 B

Coord arcsec 2000	155003.41+304540.8		Mag	13.79		PmRA	5.00		PmDE	-2.0
Calc delta mag	2.79		Calc coord	yes

CCDM

Ccdm	15501+3046	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-2.61	DDEs	-19.2
R dRAs	82	Year	1991	Theta	312	Rho	1.8
Obs	1	Vmag	13.8	Sp		PmNote	*
PmRA	5	PmDE	-2	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	77555