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Current system

06250+1031
STF 901 AB
HD 44944

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Binocular doubles
Binary Systems
Triple Systems
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

06250+1031 STF 901 AB (HD 44944)

06^h 25^m 00.98^s +10° 31' 03.3" P.A. 246.00 sep 20.0 mag 7.84,10.38 Sp B9IV dist. 1265.82 pc (4129.1 l.y.)

Coord 2000	06250+1031	Discov num	STF 901	Comp	AB	Coord arcsec 2000	06 25 00.98 +10 31 03.3
Date first	1827	Date last	2015	Obs	29
Pa first	255	Pa last	246.4	P.A. Now (θ)	246.4°
Sep first	16.0	Sep last	20.03	Sep. Now (ρ)	20.03"
Mag pri	7.84	Mag sec	10.38	delta mag (ΔM)	2.54	Spectral class	B9IV (blue-white)
Pri motion ra	-001	Sec motion ra	-003
Pri motion dec	+001	Sec motion dec	-004
Notes

rPM=1.077

This double is not physical.

06250+1031 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 44944	95649	06 25 01 +10 31 03	STF 901 AB	2015	29	246	20.0	7.84	10.38	2.54		<===
Show		95649	06 25 01 +10 31 03	HJ 9008 AC	2015	8	170	26.3	7.84	12.90	5.06

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 44944	Constellation	Orion	SAO	95649	HIP	30529
Tycho2	0736-00370-1	Gaia DR2	3330574141066479872	HD	44944	GC	8282
BD	BD+10 1128	Distance	1265.82	Distance ly	4129.1

WDS 06250+1031 STF 901 AB (HD 44944) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
HJ_1826	Mb -	Herschel, J.F.W.	1826MmRAS...2..459H
HJ_1826		MemRAS 2, 459, 1826
HJ_1829a	Mb -	Herschel, J.F.W.	1829MmRAS...3...47H
HJ_1829a		MemRAS 3, 47, 1829
HJ_1829b	Mb -	Herschel, J.F.W.	1829MmRAS...3..177H
HJ_1829b		MemRAS 3, 177, 1829
HJ_1831	Ma -	Herschel, J.F.W.	1831MmRAS...4..331H
HJ_1831	+Mb	MemRAS 4, part 2, 331, 1831
HJ_1833a	Ma -	Herschel, J.F.W.	1833MmRAS...5...13H
HJ_1833a	+Mb	MemRAS 5, 13, 1833
HJ_1833b	orb -	Herschel, J.F.W.	1833MmRAS...5..171H
HJ_1833b		MemRAS 5, 171, 1833
HJ_1833c	Mb -	Herschel, J.F.W.	1833MmRAS...6....1H
HJ_1833c		MemRAS 6, 1, 1833
HJ_1833d	orb -	Herschel, J.F.W.	1833MmRAS...6..149H
HJ_1833d		MemRAS 6, 149, 1833
HJ_1835	Ma -	Herschel, J.F.W.	1835MmRAS...8...37H
HJ_1835	+Mb	MemRAS 8, 37, 1835
HJ_1836	Mb -	Herschel, J.F.W.	1836MmRAS...9..193H
HJ_1836		MemRAS 9, 193, 1836
HJ_1847a	Ma j	Herschel, J.F.W.	.
HJ_1847a	+Mb	Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b	Ma j	Herschel, J.F.W.	.
HJ_1847b		Cape Results, London, 1847
HJ_1850	orb -	Herschel, J.F.W.	1850MmRAS..18...47H
HJ_1850		MemRAS 18, 47, 1850
HJ_1870	Mb -	Herschel, J.F.W.	1870MmRAS..38....1H
HJ_1870		MemRAS 38, 1, 1870
HJ_1874A	-	Herschel, J.F.W.	1874MNRAS..35...28B
HJ_1874A		cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A	Ma -	Herschel, J.F.W.	1875AN.....85..323D
HJ_1875A	+Mb	cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A	Ma -	Herschel, J.F.W.	1880Obs.....3..508G
HJ_1880A	+Mb	cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B	Mb -	Herschel, J.F.W.	1880MNRAS..40..497B
HJ_1880B		cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A	Ma j	Herschel, J.F.W.	1897MNRAS..57..541S
HJ_1897A		cited by See (MNRAS 57, 541, 1897)
HJ_1905A	Ma -	Herschel, J.F.W.	1905LicOB...3..147A
HJ_1905A	+Mb	cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A	Ma -	Herschel, J.F.W.	1906MmRAS..56....1L
HJ_1906A	+Mb	cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B	Ma -	Herschel, J.F.W.	1906QB821.B972.....
HJ_1906B	+Mb	cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A	Mb -	Herschel, J.F.W.	1927sdsc.book......
HJ_1927A		cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A	Mb -	Herschel, J.F.W.	1932QB821.A43......
HJ_1932A		cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999	M j	Herschel, J.F.W.	...................
HJ_9999	+Ma	Unpublished, manuscript or reference not found.
STFA		(F. Struve DD - Appendix list #1)	...................
STFB		(F. Struve DD - Appendix list #2)	...................
StF1833A	Ma -	Struve, F.G.W.	1833MmRAS...5...13H
StF1833A	+Mc	cited by Herschel (MemRAS 5, 13, 1833)
StF1833B	Ma -	Struve, F.G.W.	1833AN.....10..389B
StF1833B		cited by Bessel (AN 10, 389, 1833)
StF1837	Ma -	Struve, F.G.W.	1837AN.....14...249
StF1837		Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837		(Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A	Ma -	Struve, F.G.W.	1844QB43.S66.......
StF1844A		cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A	Ma -	Struve, F.G.W.	.
StF1852A		cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A	Ma -	Struve, F.G.W.	1865AN.....64...81E
StF1865A		cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A	Ma -	Struve, F.G.W.	1875AN.....85..323D
StF1875A		cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878	Ma -	Struve, F.G.W.	.
StF1878		Pulkova Observations 9, 1878
StF1878B	Ma -	Struve, F.G.W.	1878Obs.....2..239G
StF1878B		cited by Gledhill (Obs 2, 239, 1878)
StF1880A	Ma -	Struve, F.G.W.	1880Obs.....3..535G
StF1880A		cited by Gledhill (Obs 3, 535, 1880)
StF1906A	Ma -	Struve, F.G.W.	1906QB821.B972.....
StF1906A		cited in BDS (Burnham Double Star Cat.), 1906
StF1906B	Ma -	Struve, F.G.W.	1906MmRAS..56....1L
StF1906B		cited by Lewis (MemRAS 56, 1, 1906)
StF1922A	Ma -	Struve, F.G.W.	1922AN....216...49R
StF1922A		cited by Rabe (AN 216, 49, 1922)
StF1932A	Ma -	Struve, F.G.W.	1932QB821.A43......
StF1932A		cited in ADS (Aitken Double Star Cat.), 1932
StF2002	- -	Weis, J.
StF2002		F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002		USNO Library : QB 821 .S8 W49 2002
StF2022	- -	email note from Jan Weis: 6 July 2022
StF9999	Ma -	Struve, F.G.W.	...................
StF9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
06250+1031	STF 901	AB	2002	23	248	19.8	7.84	10.38	B9IV	D	062500.98+103103.3
06250+1031	STF 901	AB	2011	24	248	19.3	7.84	10.38	B9IV	D	062500.98+103103.3
06250+1031	STF 901	AB	2015	26	246	20.0	7.84	10.38	B9IV		062500.98+103103.3

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

WDS 06250+1031 STF 901 AB (HD 44944) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 06250+1031 STF 901 AB (HD 44944) : MEASURES

No records found.

WDS 06250+1031 (HD 44944) : 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 06250+1031 (HD 44944) : ALADIN DSS IMAGE @ 06^h 25^m 00.98^s +10° 31' 03.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 06250+1031 STF 901 AB (HD 44944) : 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		06250+1031	STF 901	AB	246	20.0	1
Show		06250+1031	HJ 9008	AC	170	26.3	1
Show		06250+1052	BRT2119		145	4.8	21
Show		06268+1015	IPH 23		334	16.3	32
Show		06263+1059	A 2813		110	4.4	34
Show		06247+1106	J 594	AB	93	3.0	37
Show		06247+1106	J 594	AC	301	7.5	37
Show		06275+1016	TDS3840		131	0.9	40
Show		06244+1106	BAZ 5		231	5.9	42
Show		06240+1109	BRT2117		16	4.3	42
Show		06277+1044	BRT1202		239	2.9	43
Show		06247+1114	BRT2118		330	3.2	43
Show		06258+0950	J 1364		236	5.8	45
Show		06244+1119	BPM 272		354	115.9	49
Show		06259+0944	KU 25	AB	132	3.7	49
Show		06259+0944	OPI 11	AC	110	252.4	49
Show		06277+1001	SKF 301		311	125.8	51
Show		06261+0941	KPP 139		142	3.4	53
Show		06220+1058	STF 898	AB	122	6.2	53
Show		06220+1058	WAL 44	AC	325	26.5	53
Show		06219+1058	J 346		216	2.4	56
Show		06220+1102	J 1324		68	3.4	57
Show		06272+1118	J 1945		93	7.6	57
Show		06218+1103	DBR 298		140	3.8	58
Show		06244+1128	TDS 248		94	2.0	58
Show		06211+1018	J 718		153	4.1	59
Show		06214+1005	SLE 876		75	11.2	60
Show		06264+1128	J 595	AB	42	4.8	61
Show		06264+1128	J 595	AC	245	44.0	61
Show		06291+1013	BRT3276		110	3.2	63
Show		06275+1124	BPM 276		123	112.0	65
Show		06236+1133	BRT1200		325	4.8	66
Show		06215+0951	SHN 104		-1	0.1	66
Show		06205+1037	SLE 873		169	17.8	67
Show		06238+0926	TDS 247		337	1.0	68
Show		06204+1013	J 2422		263	3.5	68
Show		06205+1011	SLE 874		341	11.9	70
Show		06214+0945	XMI 14		244	20.1	71
Show		06207+0959	SLE 875		38	17.5	71
Show		06201+1037	J 344		94	3.7	72
Show		06211+1118	GWP 778		306	85.1	75
Show		06210+0944	HJ 725	AB	70	24.0	76
Show		06210+0944	ARN 41	AC	19	124.5	76
Show		06199+1026	SLE 871		233	15.9	76
Show		06198+1042	SLE 870		137	13.6	78
Show		06277+0924	CRC 51		220	1.2	79
Show		06236+1147	BPM 271		337	111.6	80
Show		06299+1110	J 348		141	3.6	80
Show		06200+0958	SLE 872		106	12.4	81
Show		06221+0920	HEI 696		359	1.5	83
Show		06196+1053	HEI 694		223	2.5	84

WDS 06250+1031 : COMPONENTS

	A	B
B	pa=246.0° sep=19.75"
C	pa=169.8° sep=26.30"	pa=128.2° sep=28.90"

06250+1031 A

Name	HD 44944	Coord arcsec 2000	062500.98+103103.3	Mag	7.84	Spectral class	B9IV (blue-white)
PmRA	-1.00	PmDE	1.0	SAO	95649	HIP	30529
Tycho2	0736-00370-1	HD	44944	GC	8282	BD	BD+10 1128

Tycho2

Tycho2	0736-00370-1	Pflag		RAmdeg	96.25407237	DEmdeg	10.51757663
PmRA	0.4	PmDE	1.4	E RAmdeg	7	E DEmdeg	9
E pmRA	1.3	E pmDE	1.3	EpRAm	1991.03	EpDEm	1990.48
Num	16	Q RAmdeg	1.3	Q DEmdeg	1.0	Q pmRA	1.2
Q pmDE	1.1	BTmag	8.113	E BTmag	0.018	VTmag	7.837
E VTmag	0.015	Prox	999	TYC	T	HIP	30529
CCDM		RAdeg	96.25407222	DEdeg	10.51757389	EpRA 1990	1.71
EpDE 1990	1.53	E RAdeg	6.9	E DEdeg	8.7	Posflg
Corr	0.0

SAO

SAO	95649	DelFlag		RA1950		PmRA1950	-0.0016
DE1950		PmDE1950	-0.016	Vmag	7.7	SpType	B9
Double code		Source	70	CatNum	8282	DM	BD+10 1128
DMcomp		BDsup		HD	44944	M HD	0
GC	8282	RA1950rad	1.66786577	DE1950rad	0.18406399	PmRA2000	-0.0015
PmDE2000	-0.015

Hipparcos

Catalog	H	HIP	30529	Proxy		RAhms	06 25 00.98
DEdms	+10 31 03.3	Vmag	7.78	VarFlag	2	R Vmag	H
RAdeg	96.2541	DEdeg	10.5176	AstroRef		Plx	1.53
CCDM	06250+1031	N CCDM	I	Nsys	1	Ncomp	1
MultFlag	X	Source		Qual	S	M HIP
Theta		Rho		HD	44944	BD	BD+10 1128
CD		CP		Dm number	+10 1128	VIred	0.24
SpType	B9	R SpType		Coord arcsec 2000	062500.98+103103.3

Hipparcos 2

HIP	30529	Sn	1	So	2	Nc	1
RArad	1.6799504475	DErad	0.1835662884	Plx	0.79	PmRA	-0.54
PmDE	1.06	E RArad	1.75	E DErad	1.34	E Plx	1.99
E pmRA	2.39	E pmDE	1.47	Hpmag	7.8442	E Hpmag	0.0074
SHp	0.029	VA	2	BV	0.216	E BV	0.015
VI	0.24

CCDM

Ccdm	06250+1031	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.00	DDEs	3.2
R dRAs	10	Year		Theta		Rho
Obs	3	Vmag	7.9	Sp	B9	PmNote	*
PmRA	6	PmDE	0	Dm number	+10 1128	Cat1	BD
Name2	+10 745	Cat2	AGK2/3	HD	44944	M HD
ADS BDS	A 5035	M ADS BDS		N IDS		IDS	06195N1034A
HIC	30529

06250+1031 B

Coord arcsec 2000	062459.76+103055.3		Mag	10.38		PmRA	-3.00		PmDE	-4.0
Calc delta mag	2.54		Calc coord	yes

CCDM

Ccdm	06250+1031	RComp		Comp	B	Note1
Note2		Discov num	STF 901	DRAs		DDEs
R dRAs		Year	1829	Theta	248	Rho	20.0
Obs	6	Vmag	9.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 5035	M ADS BDS		N IDS		IDS	06195N1034B
HIC

06250+1031 C

Coord arcsec 2000	062501.30+103037.4		Mag	12.9		PmRA	4.00		PmDE	0.0
Calc delta mag	5.06		Calc coord	yes

CCDM

Ccdm	06250+1031	RComp		Comp	C	Note1
Note2		Discov num	HJ	DRAs		DDEs
R dRAs		Year		Theta	180	Rho	20.0
Obs	1	Vmag		Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 5035	M ADS BDS		N IDS		IDS	06195N1034C
HIC