18491+1313 STF 2399 AB (HD 174238)

Coord 2000	18491+1313		Discov num	STF2399		Comp	AB		Coord arcsec 2000	18 49 07.37 +13 12 54.1
Date first	1829		Date last	2015		Obs	31
Pa first	120		Pa last	117.7		P.A. Now (θ)	117.7°
Sep first	15.8		Sep last	15.815		Sep. Now (ρ)	15.815"
Mag pri	8.83		Mag sec	9.48		delta mag (ΔM)	0.65		Spectral class	A0 (white)
Pri motion ra	+001		Sec motion ra	-001
Pri motion dec	-007		Sec motion dec	-006
Notes	T (Parallax indicates physical)

rPM=0.316 This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 174238	104131	18 49 07 +13 12 54	STF 2399 AB	2015	31	118	15.8	8.83	9.48	0.65		<===
Show		104131	18 49 07 +13 12 54	STF 2399 AC	2015	23	48	31.2	8.83	11.10	2.27
Show		104133	18 49 08 +13 12 47	STF 2399 BC	2015	23	18	29.7	9.48	11.10	1.62
Show		104133	18 49 08 +13 12 47	STF 2399 BD	2015	15	69	42.4	9.48	12.18	2.70

Quadruple system
4 estimated visually detectable stars in this system

Name	HD 174238		Constellation	Hercules		SAO	104131		Tycho2	1038-00739-1
Gaia DR2	4505473027704961280		HD	174238		GC	25788

No records found.

refcode	metd	author	reference
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.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18491+1313	STF2399	AB	2004	23	118	15.8	8.83	9.48	A0	D	184907.37+131254.1
18491+1313	STF2399	AB	2014	26	118	15.8	8.83	9.48	A0	D	184907.37+131254.1
18491+1313	STF2399	AB	2015	27	118	15.8	8.83	9.48	A0		184907.37+131254.1

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

No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
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 18491+1313 STF2399 AB 118 15.8 Show 18491+1313 STF2399 AC 48 31.2 Show 18491+1313 STF2399 BC 18 29.7 1 Show 18491+1313 STF2399 BD 69 42.4 1 Show 18496+1313 SHY 309 161 999.9 8 Show 18494+1252 BPM 848 350 112.4 22 Show 18508+1301 BPM 865 273 87.5 27 Show 18504+1336 BPM 861 207 104.3 30 Show 18502+1339 BPM 857 BC 43 3.4 31 Show 18502+1339 BPM 857 AB 257 44.9 31 Show 18470+1309 SKF1975 36 28.8 32 Show 18486+1344 BPM 836 173 36.6 32 Show 18471+1328 BPM 827 50 79.2 33 Show 18504+1241 J 469 111 2.8 35 Show 18497+1238 BPM 852 304 112.9 37 Show 18510+1339 BPM 868 14 74.9 38 Show 18517+1331 STF2409 AB 22 0.9 43 Show 18517+1331 STF2409 AC 196 33.8 43 Show 18517+1331 WAL 96 AB,D 291 72.7 43 Show 18506+1351 J 108 77 2.0 44 Show 18481+1231 BPMA 60 135 285.7 45 Show 18521+1322 TOB 296 109 20.8 46 Show 18476+1234 BPM 829 217 104.1 46 Show 18501+1230 BPM 856 45 104.1 46 Show 18507+1233 BPM 864 115 54.7 46 Show 18523+1314 TOB 297 86 16.8 47 Show 18522+1302 TDT1094 302 1.8 47 Show 18503+1229 BPM 858 57 69.2 48 Show 18461+1328 TDT1042 271 0.7 48 Show 18494+1400 BPM 847 97 42.6 48 Show 18503+1228 J 468 AB 53 1.9 48 Show 18503+1228 J 468 AC 141 9.7 48 Show 18503+1228 GII 272 Aa,Ab 103 0.1 48 Show 18502+1227 J 1226 242 2.2 50 Show 18464+1240 BPM 825 189 60.7 52 Show 18479+1403 BPM 833 172 98.0 53 Show 18472+1227 BPM 828 113 101.1 55 Show 18489+1219 BPM 841 22 72.6 55 Show 18503+1408 HEI 398 107 1.8 58 Show 18506+1219 HJ 1350 177 4.1 59 Show 18493+1214 BPM 844 2 114.7 59 Show 18460+1235 GWP2798 192 32.9 60 Show 18529+1248 TDT1108 348 0.8 61 Show 18529+1248 GII 273 Aa,Ab 135 0.2 61 Show 18520+1358 CHR 80 9 0.1 62 Show 18493+1416 BPM 845 100 106.7 63 Show 18450+1255 BPM 816 163 66.7 64 Show 18523+1357 BPM 874 154 110.6 65 Show 18504+1210 BPMA 62 168 145.1 66 Show 18528+1234 AG 365 186 18.8 66 Show 18493+1206 BPM 846 144 54.3 67

	A	B	C
B	pa=117.8° sep=15.85"
C	pa=47.0° sep=30.72"	pa=16.6° sep=29.58"
D	pa=81.3° sep=53.04"	pa=68.2° sep=41.39"	pa=113.4° sep=32.64"

Name	HD 174238		Coord arcsec 2000	184907.37+131254.1		Mag	8.83		Spectral class	A0 (white)
PmRA	1.00		PmDE	-7.0		SAO	104131		Tycho2	1038-00739-1
HD	174238		GC	25788		DM	BD+13 3764

Tycho2	1038-00739-1		Pflag			RAmdeg	282.28072939		DEmdeg	13.21504225
PmRA	0.7		PmDE	-6.5		E RAmdeg	9		E DEmdeg	10
E pmRA	1.2		E pmDE	1.1		EpRAm	1990.95		EpDEm	1990.25
Num	10		Q RAmdeg	1.0		Q DEmdeg	0.8		Q pmRA	1.1
Q pmDE	0.8		BTmag	9.134		E BTmag	0.019		VTmag	8.829
E VTmag	0.017		Prox	159		TYC	T		HIP
CCDM			RAdeg	282.28072750		DEdeg	13.21505722		EpRA 1990	1.69
EpDE 1990	1.63		E RAdeg	9.0		E DEdeg	9.7		Posflg
Corr	0.0

SAO	104131		DelFlag			RA1950			PmRA1950	-0.0001
DE1950			PmDE1950	0		Vmag	8.3		SpType	A0
Double code			Source	70		CatNum	25788		DM	BD+13 3764
DMcomp			BDsup			HD	174238		M HD	0
GC	25788		RA1950rad	4.91665691		DE1950rad	0.22964066		PmRA2000	0
PmDE2000	-0.001

Ccdm	18491+1313		RComp			Comp	A		Note1
Note2			Discov num			DRAs	1.38		DDEs	-5.7
R dRAs	10		Year			Theta			Rho
Obs	4		Vmag	8.8		Sp	A0		PmNote	*
PmRA	4		PmDE	1		Dm number	+13 3764		Cat1	BD
Name2	+13 1838		Cat2	AGK2/3		HD	174238		M HD
ADS BDS	A11716		M ADS BDS			N IDS			IDS	18445N1306A
HIC

Coord arcsec 2000	184908.33+131246.7		Coord calc	184908.33+131246.7		Mag	9.48		Spectral class	A2 (white)
PmRA	3.00		PmDE	-6.0		SAO	104133		Tycho2	1038-00415-1
HD	229601		GC	25790		DM	BD+13 3765		Calc delta mag	0.65

Tycho2	1038-00415-1		Pflag			RAmdeg	282.28474225		DEmdeg	13.21298700
PmRA	1.9		PmDE	-5.0		E RAmdeg	15		E DEmdeg	15
E pmRA	1.2		E pmDE	1.1		EpRAm	1989.69		EpDEm	1989.40
Num	8		Q RAmdeg	0.7		Q DEmdeg	0.9		Q pmRA	0.8
Q pmDE	1.0		BTmag	9.705		E BTmag	0.026		VTmag	9.482
E VTmag	0.026		Prox	159		TYC	T		HIP
CCDM			RAdeg	282.28473806		DEdeg	13.21299833		EpRA 1990	1.70
EpDE 1990	1.70		E RAdeg	15.4		E DEdeg	15.4		Posflg
Corr	-0.1

SAO	104133		DelFlag			RA1950			PmRA1950	-0.0011
DE1950			PmDE1950	-0.018		Vmag	9.3		SpType	A2
Double code			Source	70		CatNum	25790		DM	BD+13 3765
DMcomp			BDsup			HD	229601		M HD	0
GC	25790		RA1950rad	4.91672389		DE1950rad	0.22959812		PmRA2000	-0.001
PmDE2000	-0.019

Ccdm	18491+1313		RComp			Comp	B		Note1
Note2			Discov num	STF2399		DRAs	2.36		DDEs	-13.6
R dRAs	10		Year	1829		Theta	119		Rho	15.8
Obs	6		Vmag	9.4		Sp	A2		PmNote	*
PmRA	4		PmDE	-10		Dm number	+13 3765		Cat1	BD
Name2	+13 1839		Cat2	AGK2/3		HD	229601		M HD
ADS BDS	A11716		M ADS BDS			N IDS			IDS	18445N1306B
HIC

Coord arcsec 2000	184908.91+131315.0		Mag	11.1		PmRA	-6.00		PmDE	-13.0
Tycho2	1038-00935-1		Calc delta mag	2.27		Calc coord	yes

Tycho2	1038-00935-1		Pflag			RAmdeg	282.28741248		DEmdeg	13.22087169
PmRA	-3.7		PmDE	-13.3		E RAmdeg	63		E DEmdeg	70
E pmRA	1.9		E pmDE	1.9		EpRAm	1977.58		EpDEm	1973.03
Num	3		Q RAmdeg	0.3		Q DEmdeg	0.8		Q pmRA	0.3
Q pmDE	0.8		BTmag	12.116		E BTmag	0.183		VTmag	11.105
E VTmag	0.105		Prox	300		TYC	T		HIP
CCDM			RAdeg	282.28742167		DEdeg	13.22090222		EpRA 1990	1.72
EpDE 1990	1.62		E RAdeg	69.0		E DEdeg	78.2		Posflg
Corr	0.0

Ccdm	18491+1313		RComp			Comp	C		Note1
Note2			Discov num	STF2399		DRAs			DDEs
R dRAs			Year	1919		Theta	048		Rho	31.5
Obs	5		Vmag	10.3		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS	A11716		M ADS BDS			N IDS			IDS	18445N1306C
HIC

Coord arcsec 2000	184910.96+131302.1		Mag	12.18		PmRA	6.00		PmDE	-2.0
Calc delta mag	3.35		Calc coord	yes

Ccdm	18491+1313		RComp	B		Comp	D		Note1
Note2			Discov num	STF2399		DRAs			DDEs
R dRAs			Year	1913		Theta	070		Rho	41.8
Obs	2		Vmag	12.6		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS	A11716		M ADS BDS			N IDS			IDS	18445N1306D
HIC