12440+2110 STT 253 (HD 110721)

12^h 43^m 59.85^s +21° 10' 22.9" P.A. 238.00 sep 6.5 mag 7.99,10.51 Sp B0 dist. 156.25 pc (509.69 l.y.)

Coord 2000	12440+2110	Discov num	STT 253	Comp		Coord arcsec 2000	12 43 59.85 +21 10 22.9
Date first	1843	Date last	2016	Obs	32
Pa first	232	Pa last	237.6	P.A. Now (θ)	237.6°
Sep first	5.8	Sep last	6.507	Sep. Now (ρ)	6.507"
Mag pri	7.99	Mag sec	10.51	delta mag (ΔM)	2.52	Spectral class	B0 (blue-white)
Pri motion ra	-020	Sec motion ra	-024
Pri motion dec	+025	Sec motion dec	+022
Notes

rPM=0.154 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 110721	Constellation	Coma Berenices	SAO	82462	HIP	62130
Tycho2	1448-02405-1	Gaia DR2	3954655394798328576	HD	110721	BD	BD+21 2451
Distance	156.25	Distance ly	509.69

WDS 12440+2110 STT 253 (HD 110721) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
STTA		(O. Struve DD - Appendix list)	...................
Stt1864	Ma -	Struve, O.	1864MNRAS..24..149S
Stt1864		MNRAS 24, 149, 1864
Stt1866	orb -	Struve, O.	.
Stt1866		Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874	orb -	Struve, O.	.
Stt1874		Compte Rendus 79, 1467, 1874
Stt1875	orb -	Struve, O.	1875MNRAS..35..367S
Stt1875		MNRAS 35, 367, 1875
Stt1878	Ma -	Struve, O.	1878ObPul...9....1S
Stt1878		Pulkova Observations 9, 1, 1878
Stt1879A	Ma -	Struve, O.	1879Obs.....2..304G
Stt1879A		cited by Gledhill (Obs 2, 304, 1879)
Stt1879B	Ma -	Struve, O.	1879Obs.....3..245G
Stt1879B		cited by Gledhill (Obs 3, 245, 1879)
Stt1879C	Ma -	Struve, O.	1879Obs.....2..344G
Stt1879C		cited by Gledhill (Obs 2, 344, 1879)
Stt1880A	Ma -	Struve, O.	1880Obs.....2..605H
Stt1880A		cited by Hunt (Obs. 3, 605, 1880)
Stt1880B	Ma -	Struve, O.	1880Obs.....3..535G
Stt1880B		cited by Gledhill (Obs 3, 535, 1880)
Stt1880C	Ma -	Struve, O.	1880MNRAS..40..497B
Stt1880C		cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A	Ma -	Struve, O.	1884AReg...22..216S
Stt1884A		cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a	Ma j	Struve, O.	1893ObPul..10....1S
Stt1893a		Pulkova Obs. Observations 10, 1, 1893
Stt1906A	Ma -	Struve, O.	1906MmRAS..56....1L
Stt1906A		cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B	Ma j	Struve, O.	1906QB821.B972.....
Stt1906B		cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A	Ma -	Struve, O.	1908MNRAS..68..465B
Stt1908A		cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A	Ma -	Struve, O.	1913QB811.B8.......
Stt1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A	Ma -	Struve, O.	1914AN....198..107R
Stt1914A		cited by Rabe (AN 198, 107, 1914)
Stt1932A	Ma -	Struve, O.	1932QB821.A43......
Stt1932A		cited in ADS (Aitken Double Star Cat., 1932)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12440+2110	STT 253		2000	20	238	6.5	7.99	10.51	B0	D	124359.85+211022.9
12440+2110	STT 253		2001	22	237	6.7	7.99	10.51	B0	D	124359.85+211022.9
12440+2110	STT 253		2012	23	238	6.3	7.99	10.51	B0	D	124359.85+211022.9
12440+2110	STT 253		2015	25	238	6.5	7.99	10.51	B0		124359.85+211022.9
12440+2110	STT 253		2016	32	238	6.5	7.99	10.51	B0		124359.85+211022.9

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

WDS 12440+2110 STT 253 (HD 110721) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12440+2110 STT 253 (HD 110721) : MEASURES

No records found.

WDS 12440+2110 (HD 110721) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 12440+2110 (HD 110721) : ALADIN DSS IMAGE @ 12^h 43^m 59.85^s +21° 10' 22.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12440+2110 STT 253 (HD 110721) : 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		12440+2110	STT 253		238	6.5
Show		12431+2117	LDS5758		137	12.9	16
Show		12451+2143	GRV 858		114	62.4	37
Show		12418+2132	SLW 760		183	25.7	38
Show		12415+2136	LDS4249		30	6.6	45
Show		12444+2200	HDS1783		112	0.3	50
Show		12403+2131	LDS 939		91	83.1	56
Show		12403+2133	AZC 76		98	14.9	57
Show		12401+2049	OSO 47	AB	35	14.7	59
Show		12401+2049	OSO 47	AC	109	112.6	59
Show		12481+2204	AZC 77		329	28.3	80
Show		12386+2043	HDS1771		110	0.3	81
Show		12496+2053	LDS5760		159	11.1	82
Show		12492+2147	STF1680		335	2.9	82
Show		12406+2223	LDS4246		253	116.7	87
Show		12396+1956	BGH 40	AB	148	415.6	95
Show		12372+2112	STF1663		65	0.5	96
Show		12396+1956	LDS1330	BC	197	104.1	97
Show		12471+2237	SHY 612		23	999.9	97
Show		12507+2032	HU 640	AB	259	0.5	102
Show		12507+2032	TOK 561	AC	119	999.9	102
Show		12454+2252	SLW 768		153	41.9	104
Show		12452+1927	SLW 767		101	132.9	105
Show		12363+2113	FMR 108		311	37.1	109
Show		12390+2240	KUI 60		228	34.2	113
Show		12372+2009	CBL 54		284	15.8	114
Show		12368+2014	AG 180		357	0.4	116
Show		12514+2206	CFN 10		92	1.3	118
Show		12515+2207	LDS 940	AB	53	84.7	118
Show		12515+2207	RAO 284	AC	90	1.3	118
Show		12358+2023	SLW 739		229	18.6	125
Show		12494+1931	TDS 679		168	1.1	125
Show		12394+1918	TDS8472		124	0.5	130
Show		12533+2115	STF1687	AB	203	1.2	131
Show		12533+2115	STF1687	AC	127	28.5	131
Show		12350+2026	CBL 385		192	32.2	134
Show		12381+2257	CVR1455		345	3.3	135
Show		12382+2304	LDS4239		111	185.5	139
Show		12355+1955	GWP1832		48	170.0	141
Show		12409+1855	GWP1845		106	24.1	142
Show		12387+2318	GUR 32		142	0.8	147
Show		12522+2247	GIC 111		199	230.8	151
Show		12460+2340	COU 394		107	0.8	152
Show		12422+1840	GWP1850		37	26.2	153
Show		12347+1951	CVR 127		179	60.8	153
Show		12349+2238	WRH 12		8	0.4	155
Show		12531+1936	TOK 152		321	10.8	159
Show		12547+2206	MET 9		50	1.7	159
Show		12374+2322	COU 392		335	2.1	161
Show		12530+1935	J 2087		164	6.7	161
Show		12325+2106	STF1652		178	6.1	161

WDS 12440+2110 : COMPONENTS

	A
B	pa=235.8° sep=6.20"

12440+2110 A

Componente originario normalizzato	AB	Name	HD 110721	Coord arcsec 2000	124359.85+211022.9	Mag	7.99
Spectral class	B0 (blue-white)	PmRA	-20.00	PmDE	25.0	SAO	82462
HIP	62130	Tycho2	1448-02405-1	HD	110721	BD	BD+21 2451

Tycho2

Tycho2	1448-02405-1	Pflag		RAmdeg	190.99938061	DEmdeg	21.17301759
PmRA	-22.5	PmDE	23.4	E RAmdeg	5	E DEmdeg	5
E pmRA	1.2	E pmDE	1.1	EpRAm	1991.46	EpDEm	1991.34
Num	9	Q RAmdeg	0.8	Q DEmdeg	1.2	Q pmRA	0.7
Q pmDE	1.2	BTmag	8.287	E BTmag	0.016	VTmag	7.987
E VTmag	0.011	Prox	65	TYC	T	HIP	62130
CCDM	A	RAdeg	190.99943611	DEdeg	21.17296333	EpRA 1990	1.73
EpDE 1990	1.64	E RAdeg	5.0	E DEdeg	5.4	Posflg
Corr	0.1

SAO

SAO	82462	DelFlag		RA1950		PmRA1950	-0.0029
DE1950		PmDE1950	0.019	Vmag	7.8	SpType	F0
Double code		Source	35	CatNum	4592	DM	BD+21 2451
DMcomp		BDsup		HD	110721	M HD	0
GC		RA1950rad	3.32274111	DE1950rad	0.37430739	PmRA2000	-0.0029
PmDE2000	0.024

Hipparcos

Catalog	H	HIP	62130	Proxy	H	RAhms	12 43 59.87
DEdms	+21 10 22.7	Vmag	7.94	VarFlag		R Vmag	G
RAdeg	190.999	DEdeg	21.173	AstroRef	A	Plx	5.9
CCDM	12440+2110	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	238	Rho	6.51	HD	110721	BD	BD+21 2451
CD		CP		Dm number	+21 2451	VIred	0.32
SpType	F0	R SpType		Coord arcsec 2000	124359.87+211022.7

Hipparcos 2

HIP	62130	Sn	15	So	3	Nc	2
RArad	3.3335691182	DErad	0.3695378783	Plx	6.4	PmRA	-24.49
PmDE	21.74	E RArad	0.79	E DErad	0.66	E Plx	1.13
E pmRA	1.15	E pmDE	0.77	Hpmag	7.9919	E Hpmag	0.0016
SHp	0.014	VA	0	BV	0.279	E BV	0.017
VI	0.32

CCDM

Ccdm	12440+2110	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.19	DDEs	24.1
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.9	Sp	F0	PmNote	*
PmRA	-32	PmDE	47	Dm number	+21 2451	Cat1	BD
Name2	+21 1313	Cat2	AGK2/3	HD	110721	M HD
ADS BDS	A 8649	M ADS BDS		N IDS		IDS	12390N2143A
HIC	62130

12440+2110 B

Componente originario normalizzato	AB		Coord arcsec 2000	124359.48+211019.4		Mag	10.51		PmRA	-24.00
PmDE	22.0		Calc delta mag	2.52		Calc coord	yes

CCDM

Ccdm	12440+2110	RComp		Comp	B	Note1
Note2		Discov num	STT 253	DRAs	-0.57	DDEs	20.5
R dRAs	91	Year	1847	Theta	237	Rho	6.6
Obs	6	Vmag	11.1	Sp		PmNote	*
PmRA	-32	PmDE	47	Dm number		Cat1
Name2	+21 1312	Cat2	AGK2/3	HD		M HD
ADS BDS	A 8649	M ADS BDS		N IDS		IDS	12390N2143B
HIC	62130