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Current system
18489+1615
STF 2400 AC


Nearby doubles
12' : 18496+1621
BPM 849

18' : 18497+1629
BRT1311

22' : 18481+1557
BPM 835

23' : 18502+1603
RAO 399

24' : 18503+1626
BPM 859

27' : 18498+1639
BPM 853

31' : 18504+1554
BPM 860

34' : 18484+1542
BPMA 61

41' : 18477+1539
BPM 831

43' : 18481+1656
BPM 834

43' : 18517+1600
BPM 870

44' : 18475+1537
GII 20AB

44' : 18476+1655
J 2678

45' : 18470+1541
GII 5

46' : 18464+1641
HEI 261

46' : 18472+1655
ARN 75

49' : 18456+1604
BPM 820

51' : 18521+1635
BPM 871

52' : 18491+1524
BPM 842

53' : 18484+1524
J 2150

56' : 18466+1659
STF2385AB

56' : 18461+1655
HEI 259

56' : 18506+1525
BPM 862

58' : 18515+1700
BPMA 65

59' : 18463+1659
HEI 260

59' : 18500+1519
YSC 12AB



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18489+1615 STF 2400 AC

 
 
18h 48m 54.88s +16° 15' 24.4" P.A. 161.00 sep 10.9 mag 8.08,10.60 Sp G0 dist. 128.7 pc (419.82 l.y.)
 
 
Coord 2000 18489+1615 Discov num STF2400 Comp AC Coord arcsec 2000 18 48 54.88 +16 15 24.4
Date first 1883 Date last 2015 Obs 31
Pa first 202 Pa last 161 P.A. Now (θ) 161°
Sep first 2.1 Sep last 10.9 Sep. Now (ρ) 10.9"
Mag pri 8.08 Mag sec 10.60 delta mag (ΔM) 2.52 Spectral class G0 (yellow)
Pri motion ra -033 Sec motion ra
Pri motion dec +064 Sec motion dec
Notes N L (See Notes, Linear solution)
Nature of this double is uncertain.
 
 
18489+1615 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 174224 18 48 55 +16 15 24 STF 2400 AB 2014 41 159 9.7 8.08 11.10 3.02
Show 18 48 55 +16 15 24 STF 2400 A,BC 2016 34 160 11.0 8.08 10.20 2.12
Show 18 48 55 +16 15 24 STF 2400 AC 2015 31 161 10.9 8.08 10.60 2.52 <===
Show 104127 18 48 55 +16 15 24 STF 2400 AD 1900 4 157 0.4 8.08
Show 18 48 55 +16 15 15 STF 2400 BC 2016 35 201 1.0 11.10 10.60 0.50
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules HIP 92317 Tycho2 1584-01984-1 Gaia DR2 4510996390003527808
HD 174224 BD BD+16 3622 Distance 128.7 Distance ly 419.82
 
 
WDS 18489+1615 STF 2400 AC : NOTES
 
 
discov_num notes refcode
STF2400 AC: Mt. Wilson spectra are F5s for A and A4n for C.
AD: D not seen in 1901 and 1919.
BC: Additional notes may be found in Burnham (1894). Bu_1894
AB, AC: Rectilinear solutions by Cvetkovic (2015). Cve2015b
A,BC: Rectilinear solution by Cvetkovic et al. (2016). Cve2016
 
 
REFERENCES
 
 
refcode metd author reference
Bu_1894 Ma j Burnham, S.W. 1894PLicO...2....3B
Bu_1894 Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a) 1893AN....131..329B
Cve2015b orb - Cvetkovic, Z. 2015IAUDS.187....1C
Cve2015b +lin Inf. Circ. 187, 1, 2015
Cve2016 C j Cvetkovic, Z., Pavlovic, R. & Boeva, S. 2016AJ....151...58C
Cve2016 +lin AJ 151, 58, 2016
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18489+1615 STF2400 AC 1926 29 173 4.5 8.20 10.60 G0 N 184854.91+161523.9
18489+1615 STF2400 AC 2000 31 173 10.8 8.08 10.60 G0 N 184854.88+161524.4
18489+1615 STF2400 AC 2015 31 161 10.9 8.08 10.60 G0 NL 184854.88+161524.4

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

 
 
WDS 18489+1615 STF 2400 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18489+1615 STF 2400 AC : MEASURES
 
 
No records found.

 
 
WDS 18489+1615 : VIRTUAL EYEPIECE
 
 

18489+1615 STF2400A mag 8.08 Sp G0 18489+1615 STF2400B sep 10.0 P.A. 161.60 mag 11.1 18489+1615 STF2400C sep 10.8 P.A. 161.70 mag 10.6 18489+1615 STF2400D sep 0.4 P.A. 157.90 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18489+1615 : ALADIN DSS IMAGE @ 18h 48m 54.88s +16° 15' 24.4"
 
 
 
 
WDS 18489+1615 STF 2400 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18489+1615 STF2400AC distance=0' 18489+1615 STF2400BC distance=1' 18496+1621 BPM 849 distance=12' 18497+1629 BRT1311 distance=18' 18481+1557 BPM 835 distance=22' 18502+1603 RAO 399 distance=23' 18503+1626 BPM 859 distance=24' 18498+1639 BPM 853 distance=27' 18504+1554 BPM 860 distance=31' 18484+1542 BPMA 61 distance=34' 18477+1539 BPM 831 distance=41' 18481+1656 BPM 834 distance=43' 18517+1600 BPM 870 distance=43' 18475+1537 HU 584Aa,Ab distance=44' 18475+1537 GII 20AB distance=44' 18476+1655 J 2678 distance=44' 18470+1541 GII 5 distance=45' 18464+1641 HEI 261 distance=46' 18472+1655 ARN 75 distance=46' 18456+1604 BPM 820 distance=49' 18521+1635 BPM 871 distance=51' 18491+1524 BPM 842 distance=52' 18484+1524 J 2150 distance=53' 18466+1659 STF2385AB distance=56' 18466+1659 MAD 10AC distance=56' 18461+1655 HEI 259 distance=56' 18506+1525 BPM 862 distance=56' 18515+1700 BPMA 65 distance=58' 18463+1659 HEI 260 distance=59' 18500+1519 YSC 12AB distance=59' 18500+1519 LLO 16AC distance=59' 18500+1519 LLO 16AD distance=59' 18449+1606 HEI 173 distance=60' 18525+1644 BPM 875 distance=60' 18471+1515 HJ 1344 distance=66' 18535+1619 HEI 263 distance=66' 18533+1557 BPM 879 distance=67' 18520+1705 COU 720 distance=67' 18478+1725 BPM 832 distance=72' 18439+1601 OSO 103AB distance=75' 18439+1601 OSO 103AC distance=75' 18439+1601 OSO 103AD distance=75' 18439+1601 OSO 103AE distance=75' 18439+1601 OSO 103AF distance=75' 18510+1505 BPMA 63 distance=77' 18515+1507 OL 105 distance=77' 18500+1733 BPM 855 distance=79' 18510+1501 HDS2673 distance=81' 18506+1458 BPM 863 distance=82' 18504+1739 KPP 859 distance=87' 18551+1644 WFC 216 distance=94' grafico limitrofi
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 18489+1615 STF2400 AB 159 9.7
Show 18489+1615 STF2400 AD 157 0.4
Show 18489+1615 STF2400 AC 161 10.9
Show 18489+1615 STF2400 A,BC 160 11.0
Show 18489+1615 STF2400 BC 201 1.0 1
Show 18496+1621 BPM 849 245 101.4 12
Show 18497+1629 BRT1311 204 4.3 18
Show 18481+1557 BPM 835 272 105.6 22
Show 18502+1603 RAO 399 140 2.8 23
Show 18503+1626 BPM 859 264 110.0 24
Show 18498+1639 BPM 853 163 102.8 27
Show 18504+1554 BPM 860 174 80.3 31
Show 18484+1542 BPMA 61 54 281.7 34
Show 18477+1539 BPM 831 340 117.9 41
Show 18481+1656 BPM 834 51 119.5 43
Show 18517+1600 BPM 870 335 90.7 43
Show 18475+1537 HU 584 Aa,Ab 5 0.3 44
Show 18475+1537 GII 20 AB 184 0.3 44
Show 18476+1655 J 2678 27 5.4 44
Show 18470+1541 GII 5 102 8.3 45
Show 18464+1641 HEI 261 102 2.4 46
Show 18472+1655 ARN 75 26 65.3 46
Show 18456+1604 BPM 820 18 61.6 49
Show 18521+1635 BPM 871 188 76.6 51
Show 18491+1524 BPM 842 278 103.7 52
Show 18484+1524 J 2150 34 19.9 53
Show 18466+1659 STF2385 AB 30 5.5 56
Show 18466+1659 MAD 10 AC 26 71.9 56
Show 18461+1655 HEI 259 248 1.9 56
Show 18506+1525 BPM 862 276 60.3 56
Show 18515+1700 BPMA 65 297 191.5 58
Show 18463+1659 HEI 260 301 2.2 59
Show 18500+1519 YSC 12 AB 35 0.5 59
Show 18500+1519 LLO 16 AC 19 11.1 59
Show 18500+1519 LLO 16 AD 225 15.7 59
Show 18449+1606 HEI 173 305 3.7 60
Show 18525+1644 BPM 875 352 114.0 60
Show 18471+1515 HJ 1344 207 13.0 66
Show 18535+1619 HEI 263 353 6.3 66
Show 18533+1557 BPM 879 224 33.0 67
Show 18520+1705 COU 720 194 4.5 67
Show 18478+1725 BPM 832 244 111.2 72
Show 18439+1601 OSO 103 AB 121 5.0 75
Show 18439+1601 OSO 103 AC 44 8.9 75
Show 18439+1601 OSO 103 AD 25 14.1 75
Show 18439+1601 OSO 103 AE 150 16.4 75
Show 18439+1601 OSO 103 AF 233 17.4 75
Show 18510+1505 BPMA 63 327 156.2 77
Show 18515+1507 OL 105 157 4.7 77
Show 18500+1733 BPM 855 290 63.8 79
Show 18510+1501 HDS2673 299 0.1 81

 
 
WDS 18489+1615 : COMPONENTS
 
 
  A B C
B pa=161.6°
sep=10.01"
 
C pa=161.7°
sep=10.85"
pa=163.5°
sep=0.84"
 
D pa=157.9°
sep=0.39"
pa=341.7°
sep=9.63"
pa=341.8°
sep=10.47"
 
 
18489+1615 A
 
 
Coord arcsec 2000 184854.88+161524.4 Mag 8.08 Spectral class G0 (yellow) PmRA -33.00
PmDE 64.0 Tycho2 1584-01984-1
Tycho2
Tycho2 1584-01984-1 Pflag RAmdeg 282.22870165 DEmdeg 16.25678432
PmRA -32.5 PmDE 63.5 E RAmdeg 7 E DEmdeg 7
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.19 EpDEm 1991.14
Num 7 Q RAmdeg 1.4 Q DEmdeg 1.9 Q pmRA 1.5
Q pmDE 1.8 BTmag 8.616 E BTmag 0.018 VTmag 8.080
E VTmag 0.013 Prox 999 TYC T HIP 92317
CCDM RAdeg 282.22878000 DEdeg 16.25663750 EpRA 1990 1.66
EpDE 1990 1.67 E RAdeg 6.6 E DEdeg 7.0 Posflg
Corr 0.0
CCDM
Ccdm 18489+1615 RComp Comp A Note1
Note2 Discov num DRAs 0.99 DDEs 21.4
R dRAs 10 Year Theta Rho
Obs 4 Vmag 8.2 Sp G0 PmNote *
PmRA -20 PmDE 49 Dm number +16 3622 Cat1 BD
Name2 +16 1874 Cat2 AGK2/3 HD 174224 M HD
ADS BDS A11711 M ADS BDS N IDS IDS 18444N1609A
HIC 92317
 
 
18489+1615 B
 
 
Coord arcsec 2000 184855.10+161514.9 Coord calc 184855.10+161514.9 Mag 11.1 PmRA 4.00
PmDE -15.0 Calc delta mag 3.02
CCDM
Ccdm 18489+1615 RComp Comp B Note1
Note2 Discov num STF2400 DRAs DDEs
R dRAs Year 1945 Theta 171 Rho 5.2
Obs 99 Vmag 11.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11711 M ADS BDS N IDS IDS 18444N1609B
HIC 92317
 
 
18489+1615 C
 
 
Coord arcsec 2000 184855.12+161514.1 Mag 10.6 Calc delta mag 2.52 Calc coord yes
CCDM
Ccdm 18489+1615 RComp Comp C Note1
Note2 Discov num STF2400 DRAs DDEs
R dRAs Year 1925 Theta 172 Rho 4.8
Obs 22 Vmag 10.6 Sp PmNote
PmRA 4 PmDE -15 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11711 M ADS BDS N N IDS IDS 18444N1609C
HIC 92317
 
 
18489+1615 D
 
 
Coord arcsec 2000 184854.89+161524.0 SAO 104127 HIP 92317 HD 174224
GC 25784 BD BD+16 3622 Calc delta mag 8.08 Calc coord yes
SAO
SAO 104127 DelFlag RA1950 PmRA1950 -0.0016
DE1950 PmDE1950 0.063 Vmag 8.1 SpType G0
Double code Source 70 CatNum 25784 DM BD+16 3622
DMcomp BDsup HD 174224 M HD 0
GC 25784 RA1950rad 4.91602903 DE1950rad 0.28271355 PmRA2000 -0.0015
PmDE2000 0.063
Hipparcos
Catalog H HIP 92317 Proxy RAhms 18 48 54.91
DEdms +16 15 23.9 Vmag 7.9 VarFlag R Vmag H
RAdeg 282.229 DEdeg 16.2566 AstroRef Plx 8.92
CCDM 18489+1615 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual S M HIP
Theta Rho HD 174224 BD BD+16 3622
CD CP Dm number +16 3622 VIred 0.6
SpType G0... R SpType Coord arcsec 2000 184854.91+161523.9
Hipparcos 2
HIP 92317 Sn 1 So 2 Nc 1
RArad 4.9258215171 DErad 0.2837317463 Plx 7.77 PmRA -31.27
PmDE 55.66 E RArad 1.42 E DErad 1.33 E Plx 1.72
E pmRA 1.88 E pmDE 2.05 Hpmag 8.014 E Hpmag 0.0018
SHp 0.017 VA 0 BV 0.519 E BV 0.017
VI 0.59
CCDM
Ccdm 18489+1615 RComp Comp D Note1
Note2 Discov num STF2400 DRAs DDEs
R dRAs Year 1900 Theta 157 Rho 0.4
Obs 3 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11711 M ADS BDS N N IDS IDS 18444N1609D
HIC 92317