15554+2932 HO 399 (HD 142796)

15^h 55^m 25.81^s +29° 32' 13.5" P.A. 116.00 sep 3.6 mag 7.68,10.49 Sp A2V dist. 154.8 pc (504.96 l.y.)

Coord 2000	15554+2932	Discov num	HO 399	Comp		Coord arcsec 2000	15 55 25.81 +29 32 13.5
Date first	1891	Date last	2019	Obs	31
Pa first	118	Pa last	116.4	P.A. Now (θ)	116.4°
Sep first	2.3	Sep last	3.61	Sep. Now (ρ)	3.61"
Mag pri	7.68	Mag sec	10.49	delta mag (ΔM)	2.81	Spectral class	A2V (white)
Pri motion ra	-008	Sec motion ra	-008
Pri motion dec	+010	Sec motion dec	+009
Notes

rPM=0.078 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 142796	Constellation	Corona Borealis	SAO	84078	HIP	77975
Tycho2	2040-00167-1	Gaia DR2	1320100430841116672	HD	142796	ADS	9844
BD	BD+29 2739	Distance	154.8	Distance ly	504.96

WDS 15554+2932 HO 399 (HD 142796) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Ho_1883	Ma j	Hough, G.W.	1883MNRAS..43..371H
Ho_1883		MNRAS 43, 371, 1883 (data also in Ho_1890)	1890AN....125....1H
Ho_1884	Ma j	Hough, G.W.	1884MNRAS..44..365H
Ho_1884		MNRAS 44, 365, 1884 (data also in Ho_1890)	1890AN....125....1H
Ho_1885	Ma j	Hough, G.W.	1885MNRAS..45..417H
Ho_1885		MNRAS 45, 417, 1885 (data also in Ho_1890)	1890AN....125....1H
Ho_1886	Ma j	Hough, G.W.	1886MNRAS..46..393H
Ho_1886		MNRAS 46, 393, 1886 (data also in Ho_1890)	1890AN....125....1H
Ho_1887	Ma j	Hough, G.W.	1887AN....116..273H
Ho_1887		AN 116, 273, 1887
Ho_1890	Ma j	Hough, G.W.	1890AN....125....1H
Ho_1890		AN 125, 1, 1890
Ho_1890b	Ma j	Hough, G.W.	1890AJ......9..177H
Ho_1890b		AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b)	1890AN....125....1H
Ho_1894a	Ma -	Hough, G.W.	1894MNRAS..54..251H
Ho_1894a		MNRAS 54, 251, 1894
Ho_1894b	Ma j	Hough, G.W. (HO 304 - 490)	1894AN....135..281H
Ho_1894b		AN 135, 281, 1894
Ho_1894c	Ma -	Hough, G.W. (measure by Dembowski, H.)	1894AN....135..281H
Ho_1894c		AN 135, 281, 1894
Ho_1899a	Ma j	Hough, G.W.	1899AN....149..65H
Ho_1899a		AN 149, 65, 1899
Ho_1899b	Ma -	Hough, G.W. (measure by Burnham, S.W.)	1899AN....149..65H
Ho_1899b		AN 149, 65, 1899
Ho_1907	Ma -	Hough, G.W.	1907PFAO....3c...1D
Ho_1907		Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A	Ma -	Hough, G.W.	1932QB821.A43......
Ho_1932A		cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15554+2932	HO 399		2002	24	118	3.6	7.68	10.49	A2V		155525.81+293213.5
15554+2932	HO 399		2009	25	117	3.5	7.68	10.49	A2V		155525.81+293213.5
15554+2932	HO 399		2015	27	117	3.7	7.68	10.49	A2V		155525.81+293213.5
15554+2932	HO 399		2019	30	116	3.6	7.68	10.49	A2V		155525.81+293213.5

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

WDS 15554+2932 HO 399 (HD 142796) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 15554+2932 HO 399 (HD 142796) : MEASURES

No records found.

WDS 15554+2932 (HD 142796) : VIRTUAL EYEPIECE

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

WDS 15554+2932 (HD 142796) : ALADIN DSS IMAGE @ 15^h 55^m 25.81^s +29° 32' 13.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 15554+2932 HO 399 (HD 142796) : 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		15554+2932	HO 399		116	3.6	1
Show		15558+2912	DOO 61	AB	251	50.1	22
Show		15550+2953	HJ 2797		76	34.5	22
Show		15562+2857	LDS4607		265	23.4	37
Show		15573+3005	HJ 2800		283	14.5	42
Show		15524+2948	UC 3074		213	30.5	44
Show		15514+2921	COU 617		98	4.7	54
Show		15578+3023	KPP2351		334	20.1	60
Show		15566+3031	KPP1287		333	9.8	61
Show		15511+3008	TDS9660		322	1.9	67
Show		15503+3003	LDS4592		129	38.2	74
Show		15547+3048	UC 3088		44	11.0	77
Show		15523+2814	TDS9668		210	0.7	89
Show		15498+2839	UC 213		59	9.7	92
Show		15508+2814	TDS9656	AB	45	0.7	99
Show		15540+2754	COU 802	AB	127	3.0	100
Show		15540+2754	GII 225	Aa,Ab	122	0.1	100
Show		16019+3027	LDS4626		273	104.8	101
Show		15501+3046	HDS2230	AB	313	1.8	102
Show		15501+3046	GII 224	Aa,Ab	16	0.2	102
Show		15498+2817	TDS9648		159	0.7	106
Show		15585+3112	TDS9706		9	0.4	107
Show		15488+3036	GRV 914		74	16.1	108
Show		16032+2851	STF2004		278	1.8	110
Show		16039+2935	UC 216		318	28.7	110
Show		15593+2752	TDS9712		217	0.6	113
Show		16011+2808	AG 349		227	11.7	114
Show		16022+3048	TDS9737		180	2.9	116
Show		15470+3010	BRT 254		131	5.3	116
Show		15523+3119	HJ 2795	AB	29	12.4	116
Show		15485+2817	TDS9637		99	1.0	118
Show		15503+3114	HJ 2792		351	27.0	123
Show		15474+2828	TDS9623		310	2.0	124
Show		15475+3044	KPP3296		142	2.0	126
Show		16055+2955	GRV1217		141	8.3	134
Show		15451+2936	COU 614		40	0.3	136
Show		16053+3024	GRV 920		195	11.8	140
Show		16006+2726	TDS9725		4	0.6	144
Show		16065+2928	CVR 812		323	7.5	145
Show		15554+2702	KPP3299		286	1.4	150
Show		16069+2942	TDS9761		297	0.7	151
Show		16067+2849	TDS9759		67	0.5	154
Show		15588+3205	GRV 918		347	14.0	160
Show		15576+2653	AGC 7	AB	10	2.0	163
Show		15576+2653	AGC 7	AC	172	96.0	163
Show		16076+2900	STF2011	AB	67	2.7	164
Show		16076+2900	GUI 16	AC	350	117.0	164
Show		16078+2956	RAO 345	AB	189	0.7	164
Show		16078+2956	RAO 345	AC	234	3.5	164
Show		15441+3046	TDS9607		121	0.8	165
Show		15518+3211	LDS4596		40	114.8	166

WDS 15554+2932 : COMPONENTS

	A
B	pa=119.7° sep=3.24"

15554+2932 A

Componente originario normalizzato	AB	Name	HD 142796	Coord arcsec 2000	155525.81+293213.5	Mag	7.68
Spectral class	A2V (white)	PmRA	-8.00	PmDE	10.0	SAO	84078
HIP	77975	Tycho2	2040-00167-1	HD	142796	ADS	9844
BD	BD+29 2739

Tycho2

Tycho2	2040-00167-1	Pflag		RAmdeg	238.85755021	DEmdeg	29.53708991
PmRA	-7.7	PmDE	9.6	E RAmdeg	4	E DEmdeg	4
E pmRA	1.5	E pmDE	1.4	EpRAm	1991.44	EpDEm	1991.52
Num	8	Q RAmdeg	1.5	Q DEmdeg	1.0	Q pmRA	1.6
Q pmDE	1.0	BTmag	7.735	E BTmag	0.015	VTmag	7.683
E VTmag	0.010	Prox	36	TYC	T	HIP	77975
CCDM	A	RAdeg	238.85757028	DEdeg	29.53706778	EpRA 1990	1.60
EpDE 1990	1.70	E RAdeg	4.1	E DEdeg	3.8	Posflg
Corr	-0.1

SAO

SAO	84078	DelFlag		RA1950		PmRA1950	0.0001
DE1950		PmDE1950	-0.002	Vmag	7.2	SpType	A0
Double code		Source	34	CatNum	7396	DM	BD+29 2739
DMcomp		BDsup		HD	142796	M HD	0
GC		RA1950rad	4.16002738	DE1950rad	0.51804662	PmRA2000	0.0003
PmDE2000	0

Hipparcos

Catalog	H	HIP	77975	Proxy	H	RAhms	15 55 25.82
DEdms	+29 32 13.4	Vmag	7.64	VarFlag		R Vmag	H
RAdeg	238.858	DEdeg	29.5371	AstroRef	A	Plx	6.61
CCDM	15554+2932	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	118	Rho	3.59	HD	142796	BD	BD+29 2739
CD		CP		Dm number	+29 2739	VIred	0.04
SpType	A0	R SpType		Coord arcsec 2000	155525.82+293213.4

Hipparcos 2

HIP	77975	Sn	15	So	3	Nc	2
RArad	4.1688510852	DErad	0.5155190713	Plx	6.46	PmRA	-7.27
PmDE	8.75	E RArad	0.39	E DErad	0.48	E Plx	0.73
E pmRA	0.43	E pmDE	0.54	Hpmag	7.6611	E Hpmag	0.0011
SHp	0.013	VA	0	BV	0.062	E BV	0.013
VI	0.07

CCDM

Ccdm	15554+2932	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.86	DDEs	13.4
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.8	Sp	A0	PmNote	*
PmRA	0	PmDE	9	Dm number	+29 2739	Cat1	BD
Name2	+29 1527	Cat2	AGK2/3	HD	142796	M HD
ADS BDS	A 9844	M ADS BDS		N IDS		IDS	15514N2950A
HIC	77975

15554+2932 B

Componente originario normalizzato	AB		Coord arcsec 2000	155526.03+293211.9		Mag	10.49		PmRA	-8.00
PmDE	9.0		Calc delta mag	2.81		Calc coord	yes

CCDM

Ccdm	15554+2932	RComp		Comp	B	Note1
Note2		Discov num	HO 399	DRAs		DDEs
R dRAs		Year	1891	Theta	119	Rho	3.2
Obs	16	Vmag	10.3	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 9844	M ADS BDS		N IDS		IDS	15514N2950B
HIC	77975