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Doubles in session


Current system
19137+0218
HJ 879
21 Aql


Nearby doubles
13' : 19144+0212
SLE 935

17' : 19144+0205
J 1756

20' : 19126+0207
J 2540

21' : 19149+0209
BAL1514

22' : 19148+0204
BAL1513

24' : 19125+0233
SLE 934

26' : 19133+0153
BAL1511

32' : 19158+0218
BAL1982AB

32' : 19121+0237
BU 1204AB

34' : 19160+0214
TDT1332

36' : 19146+0251
BAL1980

39' : 19150+0250
BAL1981

42' : 19121+0254
AST 1

48' : 19105+0218
J 1282

49' : 19108+0154
J 2948

50' : 19152+0133
HDS2723

50' : 19105+0203
BAL1510

51' : 19138+0307
BAL1979

52' : 19125+0306
J 2168

59' : 19099+0231
SLE 930

60' : 19168+0141
BAL1515

60' : 19170+0144
BAL1516

61' : 19103+0250
SLE 931

63' : 19119+0314
SLE 933

63' : 19172+0143
B 2875

65' : 19106+0132
GWP2820



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19137+0218 HJ 879 (21 Aql)

 
 
19h 13m 42.70s +02° 17' 37.4" P.A. 287.00 sep 36.9 mag 5.15,12.30 Sp B8II-III dist. 217.86 pc (710.66 l.y.)
 
 
Coord 2000 19137+0218 Discov num HJ  879 Comp Coord arcsec 2000 19 13 42.70 +02 17 37.4
Date first 1827 Date last 2010 Obs 8
Pa first 295 Pa last 286.8 P.A. Now (θ) 286.8°
Sep first 25.0 Sep last 36.91 Sep. Now (ρ) 36.91"
Mag pri 5.15 Mag sec 12.30 delta mag (ΔM) 7.15 Spectral class B8II-III (blue-white)
Pri motion ra +007 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 21 Aql Var name V1288 Aql Constellation Aquila SAO 124408
HIP 94477 Tycho2 0467-04986-1 Gaia DR2 4267953429183603200 HD 179761
HR 7287 GC 26490 ADS 12182 BD BD+02 3824
Flamsteed 21 Aquilae Flamsteed name 21 Aql FK5 3537 Distance 217.86
Distance ly 710.66
 
 
WDS 19137+0218 HJ 879 (21 Aql) : NOTES
 
 
discov_num notes refcode
HJ 879 21 Aql. A is the Alpha CVn-type variable V1288 Aql. Spectrum of B: F8V
 
 
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
19137+0218 HJ 879 1999 4 287 36.8 5.15 12.30 B8II-III N D 191342.70+021737.4
19137+0218 HJ 879 2006 5 289 36.7 5.15 12.30 B8II-III N D 191342.70+021737.4
19137+0218 HJ 879 2010 8 287 37.0 5.15 12.30 B8II-III N 191342.70+021737.4

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

 
 
WDS 19137+0218 HJ 879 (21 Aql) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19137+0218 HJ 879 (21 Aql) : MEASURES
 
 
No records found.

 
 
WDS 19137+0218 (21 Aql) : VIRTUAL EYEPIECE
 
 

19137+0218 HJ 879A mag 5.15 Sp B8II 19137+0218 HJ 879B sep 36.9 P.A. 286.80 mag 12.3 Sp III 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 19137+0218 (21 Aql) : ALADIN DSS IMAGE @ 19h 13m 42.70s +02° 17' 37.4"
 
 
 
 
WDS 19137+0218 HJ 879 (21 Aql) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19137+0218 HJ 879 distance=0' 19144+0212 SLE 935 distance=13' 19144+0205 J 1756 distance=17' 19126+0207 J 2540 distance=20' 19149+0209 BAL1514 distance=21' 19148+0204 BAL1513 distance=22' 19125+0233 SLE 934 distance=24' 19133+0153 BAL1511 distance=26' 19158+0218 HEI 810Aa,Ab distance=32' 19158+0218 BAL1982AB distance=32' 19121+0237 BU 1204AB distance=32' 19121+0237 STF2476AB,G distance=32' 19121+0237 BU 1204AB,C distance=32' 19121+0237 BU 1204AB,D distance=32' 19121+0237 BU 1204AB,E distance=32' 19121+0237 BU 1204AB,F distance=32' 19160+0214 TDT1332 distance=34' 19146+0251 BAL1980 distance=36' 19150+0250 BAL1981 distance=39' 19121+0254 AST 1 distance=42' 19105+0218 J 1282 distance=48' 19108+0154 J 2948 distance=49' 19152+0133 HDS2723 distance=50' 19105+0203 BAL1510 distance=50' 19138+0307 BAL1979 distance=51' 19125+0306 J 2168 distance=52' 19099+0231 SLE 930 distance=59' 19168+0141 BAL1515 distance=60' 19170+0144 BAL1516 distance=60' 19103+0250 SLE 931 distance=61' 19119+0314 SLE 933 distance=63' 19172+0143 B 2875 distance=63' 19106+0132 GWP2820 distance=65' 19094+0219 SLE 929 distance=65' 19126+0325 BAL2505 distance=70' 19093+0153 SLE 928 distance=71' 19171+0311 J 2960AB distance=74' 19171+0311 J 2960BC distance=74' 19148+0103 HEI9005 distance=77' 19085+0218 J 1281CD distance=78' 19090+0252 SLE 927 distance=79' 19087+0157 BAL1508 distance=79' 19148+0100 J 1036 distance=80' 19092+0325 STF2462BC distance=82' 19092+0325 STF2462BD distance=82' 19092+0325 STF2462AB distance=82' 19092+0325 STF2462AC distance=82' 19092+0325 STF2462AD distance=82' 19092+0325 ACA 11AE distance=82' 19085+0218 J 1281AB distance=83' 19094+0127 RST5461 distance=83' 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 19137+0218 HJ 879 287 36.9
Show 19144+0212 SLE 935 221 8.4 13
Show 19144+0205 J 1756 31 3.9 17
Show 19126+0207 J 2540 249 2.9 20
Show 19149+0209 BAL1514 172 8.5 21
Show 19148+0204 BAL1513 271 8.9 22
Show 19125+0233 SLE 934 188 8.0 24
Show 19133+0153 BAL1511 355 3.6 26
Show 19158+0218 HEI 810 Aa,Ab 67 1.6 32
Show 19158+0218 BAL1982 AB 27 17.3 32
Show 19121+0237 BU 1204 AB 181 0.2 32
Show 19121+0237 STF2476 AB,G 211 29.9 32
Show 19121+0237 BU 1204 AB,C 195 12.5 32
Show 19121+0237 BU 1204 AB,D 158 20.4 32
Show 19121+0237 BU 1204 AB,E 317 26.5 32
Show 19121+0237 BU 1204 AB,F 292 26.8 32
Show 19160+0214 TDT1332 27 0.7 34
Show 19146+0251 BAL1980 258 16.3 36
Show 19150+0250 BAL1981 105 4.6 39
Show 19121+0254 AST 1 5 0.2 42
Show 19105+0218 J 1282 114 2.5 48
Show 19108+0154 J 2948 146 7.3 49
Show 19152+0133 HDS2723 144 0.2 50
Show 19105+0203 BAL1510 248 11.9 50
Show 19138+0307 BAL1979 201 11.8 51
Show 19125+0306 J 2168 336 3.1 52
Show 19099+0231 SLE 930 76 9.0 59
Show 19168+0141 BAL1515 166 4.6 60
Show 19170+0144 BAL1516 272 10.7 60
Show 19103+0250 SLE 931 74 10.7 61
Show 19119+0314 SLE 933 262 4.6 63
Show 19172+0143 B 2875 142 0.2 63
Show 19106+0132 GWP2820 328 13.5 65
Show 19094+0219 SLE 929 272 7.1 65
Show 19126+0325 BAL2505 49 18.9 70
Show 19093+0153 SLE 928 37 8.3 71
Show 19171+0311 J 2960 AB 95 24.6 74
Show 19171+0311 J 2960 BC 42 6.5 74
Show 19148+0103 HEI9005 333 1.2 77
Show 19085+0218 J 1281 CD 358 3.6 78
Show 19090+0252 SLE 927 279 7.0 79
Show 19087+0157 BAL1508 226 16.6 79
Show 19148+0100 J 1036 348 1.7 80
Show 19092+0325 STF2462 BC 279 11.0 82
Show 19092+0325 STF2462 BD 70 6.2 82
Show 19092+0325 STF2462 AB 170 8.5 82
Show 19092+0325 STF2462 AC 234 11.4 82
Show 19092+0325 STF2462 AD 131 9.5 82
Show 19092+0325 ACA 11 AE 189 36.8 82
Show 19085+0218 J 1281 AB 328 4.0 83
Show 19094+0127 RST5461 307 5.6 83

 
 
WDS 19137+0218 : COMPONENTS
 
 
  A
B pa=286.8°
sep=36.88"
 
 
19137+0218 A
 
 
Componente originario normalizzato AB Name 21 Aql Var name V1288 Aql Coord arcsec 2000 191342.70+021737.4
Mag 5.15 Spectral class B8II (blue-white) PmRA 7.00 PmDE -3.0
SAO 124408 HIP 94477 Tycho2 0467-04986-1 HD 179761
HR 7287 GC 26490 BD BD+02 3824 Flamsteed 21 Aquilae
Flamsteed name 21 Aql FK5 3537
Tycho2
Tycho2 0467-04986-1 Pflag RAmdeg 288.42793064 DEmdeg 2.29370724
PmRA 7.5 PmDE -2.6 E RAmdeg 3 E DEmdeg 4
E pmRA 0.7 E pmDE 0.6 EpRAm 1991.49 EpDEm 1991.14
Num 20 Q RAmdeg 0.7 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.8 BTmag 5.035 E BTmag 0.014 VTmag 5.117
E VTmag 0.009 Prox 999 TYC T HIP 94477
CCDM RAdeg 288.42791389 DEdeg 2.29371333 EpRA 1990 1.80
EpDE 1990 1.69 E RAdeg 3.3 E DEdeg 3.5 Posflg
Corr 0.1
SAO
SAO 124408 DelFlag RA1950 PmRA1950 0.0005
DE1950 PmDE1950 0.003 Vmag 5.1 SpType B8
Double code Source 70 CatNum 26490 DM BD+02 3824
DMcomp BDsup HD 179761 M HD 0
GC 26490 RA1950rad 5.02301271 DE1950rad 0.03852311 PmRA2000 0.0007
PmDE2000 0.002
Hipparcos
Catalog H HIP 94477 Proxy RAhms 19 13 42.70
DEdms +02 17 37.4 Vmag 5.14 VarFlag R Vmag H
RAdeg 288.428 DEdeg 2.29371 AstroRef Plx 5.09
CCDM 19137+0218 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 179761 BD BD+02 3824
CD CP Dm number +02 3824 VIred -0.05
SpType B8II-III R SpType Coord arcsec 2000 191342.70+021737.4
Hipparcos 2
HIP 94477 Sn 5 So 0 Nc 1
RArad 5.0340167662 DErad 0.0400328547 Plx 4.59 PmRA 6.95
PmDE -3.28 E RArad 0.24 E DErad 0.17 E Plx 0.29
E pmRA 0.25 E pmDE 0.2 Hpmag 5.1207 E Hpmag 0.0006
SHp 0.004 VA 0 BV -0.071 E BV 0.003
VI -0.05
CCDM
Ccdm 19137+0218 RComp Comp A Note1
Note2 Discov num DRAs 0.69 DDEs -22.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.1 Sp B8 PmNote *
PmRA 4 PmDE 0 Dm number +02 3824 Cat1 BD
Name2 +02 2398 Cat2 AGK2/3 HD 179761 M HD
ADS BDS A12182 M ADS BDS N IDS IDS 19087N0207A
HIC 94477
 
 
19137+0218 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 191340.34+021748.1 Mag 12.3 Spectral class III
Calc delta mag 7.15 Calc coord yes
CCDM
Ccdm 19137+0218 RComp Comp B Note1
Note2 Discov num HJ 879 DRAs DDEs
R dRAs Year 1878 Theta 287 Rho 36.2
Obs 3 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12182 M ADS BDS N IDS IDS 19087N0207B
HIC