18366+2206 HJ 2834 (HD 171948)

 
 
18h 36m 37.03s +22° 06' 27.4" P.A. 246.00 sep 19.7 mag 6.77,11.70 Sp A0V dist. 131.58 pc (429.21 l.y.)
 
 
Coord 2000 18366+2206 Discov num HJ 2834 Comp Coord arcsec 2000 18 36 37.03 +22 06 27.4
Date first 1830 Date last 2015 Obs 11
Pa first 248 Pa last 246.4 P.A. Now (θ) 246.4°
Sep first 12.0 Sep last 19.682 Sep. Now (ρ) 19.682"
Mag pri 6.77 Mag sec 11.70 delta mag (ΔM) 4.93 Spectral class A0V (white)
Pri motion ra -008 Sec motion ra -006
Pri motion dec -010 Sec motion dec -014
Notes
rPM=0.294 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 171948 Constellation Hercules SAO 86239 HIP 91234
Tycho2 1582-00852-1 Gaia DR2 4532135050795264256 HD 171948 GC 25434
ADS 11498 BD BD+21 3494 Distance 131.58 Distance ly 429.21
 
 
WDS 18366+2206 HJ 2834 (HD 171948) : 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.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18366+2206 HJ 2834 2006 8 246 19.7 6.70 11.70 A0V D 183637.03+220627.4
18366+2206 HJ 2834 2010 10 246 19.6 6.77 11.70 A0V 183637.03+220627.4
18366+2206 HJ 2834 2015 11 246 19.7 6.77 11.70 A0V 183637.03+220627.4

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

 
 
WDS 18366+2206 HJ 2834 (HD 171948) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18366+2206 HJ 2834 (HD 171948) : MEASURES
 
 
No records found.

 
 
WDS 18366+2206 (HD 171948) : VIRTUAL EYEPIECE
 
 

18366+2206 HJ 2834A mag 6.77 Sp A0V 18366+2206 HJ 2834B sep 18.5 P.A. 244.80 mag 11.7 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 18366+2206 (HD 171948) : ALADIN DSS IMAGE @ 18h 36m 37.03s +22° 06' 27.4"
 
 
 
 
WDS 18366+2206 HJ 2834 (HD 171948) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18366+2206  HJ 2834 distance=0' 18363+2143  COU 206 distance=24' 18353+2145  COU 205 distance=29' 18389+2222  COU 207 distance=36' 18354+2243  SLE 212 distance=41' 18368+2120  HU  323 distance=47' 18333+2219  LEP  89 distance=48' 18331+2221  KPP 419 distance=51' 18351+2302  TDT 948 distance=59' 18406+2230  TDT 989 distance=61' 18324+2221  J   807 distance=61' 18343+2258  TDT 938 distance=62' 18355+2104  STF2345 distance=64' 18408+2142  HU  324 distance=64' 18339+2300  POU3431 distance=65' 18378+2310  POU3443 distance=66' 18388+2309  POU3451 distance=70' 18334+2301  J   463AB distance=71' 18334+2301  J   463AB,C distance=71' 18343+2101  TDT 939 distance=74' 18368+2320  POU3438AB distance=74' 18368+2320  POU3439AC distance=74' 18420+2221  TDT1008 distance=76' 18369+2323  TDT 958 distance=77' 18335+2102  COU 204AB distance=78' 18311+2216  COU  15 distance=79' 18319+2253  SLE 188 distance=80' 18393+2056  STF2360 distance=80' 18310+2221  J   806 distance=80' 18426+2209  COU 208 distance=84' 18389+2324  TDT 972 distance=85' 18412+2111  TDT 994 distance=85' 18336+2321  POU3430 distance=86' 18355+2336  STT 359 distance=92' 18400+2324  POU3460 distance=92' 18332+2326  POU3429 distance=93' 18317+2310  HU  321AB distance=93' 18317+2310  HU  321AC distance=93' 18402+2328  POU3464 distance=95' 18412+2318  POU3479 distance=96' 18425+2116  BRT2448 distance=96' 18390+2337  POU3453 distance=97' 18327+2326  POU3424 distance=97' 18299+2141  TDS 926 distance=98' 18361+2344  HDS2639 distance=99' 18324+2325  POU3422 distance=99' 18401+2335  POU3461 distance=100' 18318+2321  TDT 928 distance=100' 18330+2334  KPP 418 distance=102' 18392+2341  POU3454 distance=102' 18359+2018  L    60 distance=102' 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 18366+2206 HJ 2834 246 19.7
Show 18363+2143 COU 206 149 0.1 24
Show 18353+2145 COU 205 148 0.1 29
Show 18389+2222 COU 207 298 1.6 36
Show 18354+2243 SLE 212 255 14.3 41
Show 18368+2120 HU 323 143 0.2 47
Show 18333+2219 LEP 89 302 49.1 48
Show 18331+2221 KPP 419 170 3.7 51
Show 18351+2302 TDT 948 222 2.5 59
Show 18406+2230 TDT 989 233 2.4 61
Show 18324+2221 J 807 310 3.7 61
Show 18343+2258 TDT 938 67 0.9 62
Show 18355+2104 STF2345 225 12.3 64
Show 18408+2142 HU 324 113 0.9 64
Show 18339+2300 POU3431 342 6.8 65
Show 18378+2310 POU3443 43 2.8 66
Show 18388+2309 POU3451 310 7.4 70
Show 18334+2301 J 463 AB 224 1.9 71
Show 18334+2301 J 463 AB,C 97 23.8 71
Show 18343+2101 TDT 939 180 0.5 74
Show 18368+2320 POU3438 AB 359 8.5 74
Show 18368+2320 POU3439 AC 56 15.2 74
Show 18420+2221 TDT1008 41 2.4 76
Show 18369+2323 TDT 958 255 0.4 77
Show 18335+2102 COU 204 AB 130 11.9 78
Show 18311+2216 COU 15 118 1.9 79
Show 18319+2253 SLE 188 99 17.7 80
Show 18393+2056 STF2360 358 2.5 80
Show 18310+2221 J 806 240 2.4 80
Show 18426+2209 COU 208 304 0.3 84
Show 18389+2324 TDT 972 47 0.8 85
Show 18412+2111 TDT 994 27 0.7 85
Show 18336+2321 POU3430 178 7.2 86
Show 18355+2336 STT 359 5 0.8 92
Show 18400+2324 POU3460 120 11.5 92
Show 18332+2326 POU3429 3 11.3 93
Show 18317+2310 HU 321 AB 21 20.6 93
Show 18317+2310 HU 321 AC 342 74.4 93
Show 18402+2328 POU3464 332 9.6 95
Show 18412+2318 POU3479 178 7.2 96
Show 18425+2116 BRT2448 294 3.8 96
Show 18390+2337 POU3453 102 10.1 97
Show 18327+2326 POU3424 273 9.1 97
Show 18299+2141 TDS 926 253 0.9 98
Show 18361+2344 HDS2639 137 0.1 99
Show 18324+2325 POU3422 177 12.0 99
Show 18401+2335 POU3461 244 3.1 100
Show 18318+2321 TDT 928 167 0.6 100
Show 18330+2334 KPP 418 87 3.8 102
Show 18392+2341 POU3454 274 13.3 102
Show 18359+2018 L 60 188 2.5 102

 
 
WDS 18366+2206 : COMPONENTS
 
 
  A
B pa=244.8°
sep=18.47"
 
 
18366+2206 A
 
 
Componente originario normalizzato AB Name HD 171948 Coord arcsec 2000 183637.03+220627.4 Mag 6.77
Spectral class A0V (white) PmRA -8.00 PmDE -10.0 SAO 86239
HIP 91234 Tycho2 1582-00852-1 HD 171948 GC 25434
ADS 11498 BD BD+21 3494
Tycho2
Tycho2 1582-00852-1 Pflag RAmdeg 279.15425844 DEmdeg 22.10758409
PmRA -9.5 PmDE -8.0 E RAmdeg 4 E DEmdeg 3
E pmRA 0.9 E pmDE 0.8 EpRAm 1990.92 EpDEm 1991.35
Num 16 Q RAmdeg 1.0 Q DEmdeg 0.7 Q pmRA 1.0
Q pmDE 0.8 BTmag 6.837 E BTmag 0.014 VTmag 6.774
E VTmag 0.010 Prox 999 TYC T HIP 91234
CCDM RAdeg 279.15428333 DEdeg 22.10760278 EpRA 1990 1.25
EpDE 1990 1.56 E RAdeg 3.5 E DEdeg 3.3 Posflg
Corr 0.3
SAO
SAO 86239 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.01 Vmag 6.7 SpType B9
Double code Source 70 CatNum 25434 DM BD+21 3494
DMcomp BDsup HD 171948 M HD 0
GC 25434 RA1950rad 4.86293022 DE1950rad 0.38510065 PmRA2000 -0.0005
PmDE2000 -0.01
Hipparcos
Catalog H HIP 91234 Proxy RAhms 18 36 37.03
DEdms +22 06 27.4 Vmag 6.76 VarFlag R Vmag H
RAdeg 279.154 DEdeg 22.1076 AstroRef Plx 7.66
CCDM 18366+2206 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 171948 BD BD+21 3494
CD CP Dm number +21 3494 VIred 0.06
SpType B9 R SpType Coord arcsec 2000 183637.03+220627.4
Hipparcos 2
HIP 91234 Sn 5 So 0 Nc 1
RArad 4.8721614158 DErad 0.3858504751 Plx 7.6 PmRA -8.38
PmDE -9.84 E RArad 0.24 E DErad 0.29 E Plx 0.49
E pmRA 0.25 E pmDE 0.39 Hpmag 6.7901 E Hpmag 0.0006
SHp 0.009 VA 0 BV 0.068 E BV 0.005
VI 0.08
CCDM
Ccdm 18366+2206 RComp Comp A Note1
Note2 Discov num DRAs 0.94 DDEs 27.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.7 Sp B9 PmNote *
PmRA -32 PmDE -7 Dm number +21 3494 Cat1 BD
Name2 +22 1830 Cat2 AGK2/3 HD 171948 M HD
ADS BDS A11498 M ADS BDS N IDS IDS 18324N2201A
HIC 91234
 
 
18366+2206 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183635.83+220619.5 Mag 11.7 PmRA -6.00
PmDE -14.0 Calc delta mag 4.93 Calc coord yes
CCDM
Ccdm 18366+2206 RComp Comp B Note1
Note2 Discov num HJ 2834 DRAs DDEs
R dRAs Year 1879 Theta 250 Rho 20.2
Obs 2 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11498 M ADS BDS N IDS IDS 18324N2201B
HIC