18358+2522 HDS 2637 (HD 171798)

 
 
18h 35m 45.71s +25° 22' 00.9" P.A. 119.00 sep 0.2 mag 9.20,9.67 Sp B9 dist. 275.48 pc (898.62 l.y.)
 
 
Coord 2000 18358+2522 Discov num HDS2637 Comp Coord arcsec 2000 18 35 45.71 +25 22 00.9
Date first 1991 Date last 2008 Obs 3
Pa first 106 Pa last 119.2 P.A. Now (θ) 119.2°
Sep first 0.1 Sep last 0.17 Sep. Now (ρ) 0.17"
Mag pri 9.20 Mag sec 9.67 delta mag (ΔM) 0.47 Spectral class B9 (blue-white)
Pri motion ra +000 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 171798 Constellation Hercules SAO 86225 HIP 91150
Tycho2 2111-01511-1 Gaia DR2 4536865562130187648 HD 171798 BD BD+25 3578
Distance 275.48 Distance ly 898.62
 
 
WDS 18358+2522 HDS 2637 (HD 171798) : NOTES
 
 
discov_num notes refcode
HDS2637 Fekel et al. (2013) derive a spectroscopic orbit for the primary, with
P=14.685d and e=0.2495. Estimated masses are 2.5 and 2.35 Msun. Fek2013a
 
 
REFERENCES
 
 
refcode metd author reference
Fek2013a orb - Fekel, F.C., Tomkin, J., & Williamson, M.H. 2013AJ....146..129F
Fek2013a AJ 146, 129, 2013
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18358+2522 HDS2637 1991 1 106 0.1 9.20 9.67 B9 183545.71+252200.9
18358+2522 HDS2637 2006 2 108 0.1 9.20 9.67 B9 183545.71+252200.9
18358+2522 HDS2637 2008 3 119 0.2 9.20 9.67 B9 183545.71+252200.9

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WDS 18358+2522 HDS 2637 (HD 171798) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18358+2522 HDS 2637 (HD 171798) : MEASURES
 
 
No records found.

 
 
WDS 18358+2522 (HD 171798) : VIRTUAL EYEPIECE
 
 

18358+2522 HDS2637A mag 9.2 Sp B9 18358+2522 HDS2637B sep 0.2 P.A. 121.70 mag 9.67 virtual eyepiece
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Radius:
Components only
 
 
WDS 18358+2522 (HD 171798) : ALADIN DSS IMAGE @ 18h 35m 45.71s +25° 22' 00.9"
 
 
 
 
WDS 18358+2522 HDS 2637 (HD 171798) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18358+2522 HDS2637 distance=0' 18360+2528 BRT3332 distance=7' 18359+2542 TDT 952 distance=20' 18348+2509 POU3433AB distance=23' 18348+2509 POU3434AC distance=23' 18361+2452 A 249 distance=31' 18260+2606 L 22 distance=34' 18382+2543 BUP 185AB distance=39' 18382+2543 BUP 185AC distance=39' 18382+2543 BUP 185AD distance=39' 18378+2450 POU3446 distance=43' 18380+2450 POU3449 distance=44' 18362+2437 POU3437 distance=46' 18329+2455 POU3426 distance=47' 18377+2443 POU3445 distance=48' 18350+2434 TDT 946 distance=50' 18374+2437 POU3442 distance=51' 18320+2504 POU3419 distance=54' 18373+2433 POU3441 distance=54' 18352+2616 BUP 184AB distance=55' 18352+2616 BUP 184AC distance=55' 18324+2451 POU3423 distance=55' 18379+2435 POU3448 distance=56' 18344+2615 BUP 183AB distance=56' 18344+2615 BUP 183AC distance=56' 18344+2615 BUP 183AD distance=56' 18319+2516 GCB 33 distance=57' 18387+2439 HJ 1332 distance=59' 18398+2459 POU3458 distance=60' 18312+2516 A 248 distance=63' 18346+2422 POU3432 distance=64' 18352+2419 KPP3331 distance=64' 18317+2447 POU3416 distance=66' 18398+2443 POU3459 distance=68' 18379+2421 POU3447 distance=68' 18408+2518 SLE 500 distance=69' 18407+2509 SLE 499 distance=69' 18401+2442 STF2364 distance=71' 18305+2519 A 246 distance=72' 18386+2422 POU3450 distance=72' 18409+2506 POU3474 distance=72' 18407+2454 POU3470 distance=73' 18387+2422 POU3452 distance=73' 18330+2420 POU3427 distance=73' 18397+2430 POU3457 distance=75' 18370+2409 TDT 959 distance=75' 18397+2429 POU3456 distance=76' 18412+2505 SLE 501 distance=76' 18404+2439 POU3467 distance=77' 18405+2440 POU3468 distance=78' 18413+2506 SLE 502 distance=78' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 18358+2522 HDS2637 119 0.2
Show 18360+2528 BRT3332 103 3.3 7
Show 18359+2542 TDT 952 69 1.1 20
Show 18348+2509 POU3433 AB 344 10.2 23
Show 18348+2509 POU3434 AC 69 14.5 23
Show 18361+2452 A 249 278 1.0 31
Show 18260+2606 L 22 299 8.5 34
Show 18382+2543 BUP 185 AB 336 104.1 39
Show 18382+2543 BUP 185 AC 271 999.9 39
Show 18382+2543 BUP 185 AD 205 64.7 39
Show 18378+2450 POU3446 126 13.5 43
Show 18380+2450 POU3449 226 5.0 44
Show 18362+2437 POU3437 284 5.0 46
Show 18329+2455 POU3426 95 13.0 47
Show 18377+2443 POU3445 254 11.2 48
Show 18350+2434 TDT 946 91 0.8 50
Show 18374+2437 POU3442 119 9.8 51
Show 18320+2504 POU3419 240 11.5 54
Show 18373+2433 POU3441 211 11.2 54
Show 18352+2616 BUP 184 AB 333 93.4 55
Show 18352+2616 BUP 184 AC 243 300.2 55
Show 18324+2451 POU3423 112 7.4 55
Show 18379+2435 POU3448 31 19.0 56
Show 18344+2615 BUP 183 AB 47 57.9 56
Show 18344+2615 BUP 183 AC 37 79.8 56
Show 18344+2615 BUP 183 AD 88 578.9 56
Show 18319+2516 GCB 33 50 5.3 57
Show 18387+2439 HJ 1332 232 27.8 59
Show 18398+2459 POU3458 21 7.2 60
Show 18312+2516 A 248 31 0.6 63
Show 18346+2422 POU3432 170 8.6 64
Show 18352+2419 KPP3331 5 2.5 64
Show 18317+2447 POU3416 185 15.8 66
Show 18398+2443 POU3459 72 9.7 68
Show 18379+2421 POU3447 222 14.0 68
Show 18408+2518 SLE 500 179 18.1 69
Show 18407+2509 SLE 499 347 31.0 69
Show 18401+2442 STF2364 174 10.6 71
Show 18305+2519 A 246 164 1.5 72
Show 18386+2422 POU3450 161 7.6 72
Show 18409+2506 POU3474 94 6.2 72
Show 18407+2454 POU3470 149 11.5 73
Show 18387+2422 POU3452 139 16.1 73
Show 18330+2420 POU3427 81 6.8 73
Show 18397+2430 POU3457 322 6.4 75
Show 18370+2409 TDT 959 180 0.5 75
Show 18397+2429 POU3456 190 21.3 76
Show 18412+2505 SLE 501 314 19.3 76
Show 18404+2439 POU3467 132 9.6 77
Show 18405+2440 POU3468 64 11.1 78
Show 18413+2506 SLE 502 94 6.2 78

 
 
WDS 18358+2522 : COMPONENTS
 
 
  A
B pa=121.7°
sep=0.16"
 
 
18358+2522 A
 
 
Componente originario normalizzato AB Name HD 171798 Coord arcsec 2000 183545.71+252200.9 Mag 9.2
Spectral class B9 (blue-white) PmRA 0.00 PmDE -8.0 SAO 86225
HIP 91150 Tycho2 2111-01511-1 HD 171798 BD BD+25 3578
Tycho2
Tycho2 2111-01511-1 Pflag RAmdeg 278.94043614 DEmdeg 25.36690681
PmRA -2.0 PmDE -8.9 E RAmdeg 6 E DEmdeg 5
E pmRA 1.3 E pmDE 1.2 EpRAm 1991.16 EpDEm 1991.37
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.2 BTmag 8.776 E BTmag 0.016 VTmag 8.629
E VTmag 0.012 Prox 974 TYC T HIP 91150
CCDM AB RAdeg 278.94044139 DEdeg 25.36692750 EpRA 1990 1.54
EpDE 1990 1.71 E RAdeg 5.8 E DEdeg 5.3 Posflg P
Corr 0.0
SAO
SAO 86225 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.014 Vmag 8.2 SpType B9
Double code Source 34 CatNum 9049 DM BD+25 3578
DMcomp BDsup HD 171798 M HD 0
GC RA1950rad 4.85952212 DE1950rad 0.44200428 PmRA2000 0.0008
PmDE2000 -0.015
Hipparcos
Catalog H HIP 91150 Proxy H RAhms 18 35 45.71
DEdms +25 22 00.9 Vmag 8.6 VarFlag R Vmag H
RAdeg 278.94 DEdeg 25.3669 AstroRef * Plx 3.63
CCDM 18358+2522 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 106 Rho 0.149 HD 171798 BD BD+25 3578
CD CP Dm number +25 3578 VIred 0.13
SpType B9 R SpType Coord arcsec 2000 183545.71+252200.9
Hipparcos 2
HIP 91150 Sn 55 So 3 Nc 2
RArad 4.8684291622 DErad 0.4427364219 Plx 3.63 PmRA -0.36
PmDE -7.78 E RArad 0.6 E DErad 0.63 E Plx 1.04
E pmRA 0.76 E pmDE 0.79 Hpmag 8.6536 E Hpmag 0.002
SHp 0.019 VA 0 BV 0.156 E BV 0.011
VI 0.17
CCDM
Ccdm 18358+2522 RComp Comp A Note1
Note2 Discov num DRAs -2.30 DDEs 0.9
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.2 Sp B9 PmNote *
PmRA 0 PmDE -8 Dm number +25 3578 Cat1 BD
Name2 +25 1961 Cat2 AGK2/3 HD 171798 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 91150
 
 
18358+2522 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183545.72+252200.8 Mag 9.67 Calc delta mag 0.47
Calc coord yes
CCDM
Ccdm 18358+2522 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.29 DDEs 0.9
R dRAs 82 Year 1991 Theta 106 Rho 0.2
Obs 1 Vmag 9.7 Sp PmNote *
PmRA 0 PmDE -8 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 91150