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Current system
19255+0307
BNU 6 Aa,Ab


Nearby doubles
8' : 19257+0314
HEI 811

17' : 19248+0254
BAL1985

18' : 19243+0305
HJ 885AB

19' : 19255+0325
A 2271

27' : 19272+0312
HEI 812

34' : 19248+0235
BAL1984AB

36' : 19248+0231
J 2965

40' : 19281+0303
BAL1991

40' : 19252+0227
STF2513

42' : 19267+0229
KPP 708

43' : 19267+0344
BAL2511

51' : 19264+0218
BAL1990

52' : 19259+0216
BAL1988

52' : 19289+0317
BAL2513

53' : 19220+0310
H 5 31

53' : 19263+0216
BAL1989

60' : 19259+0208
BAL1518

60' : 19295+0305
A 2197AB

61' : 19294+0255
BAL1992

61' : 19263+0208
BAL1519

61' : 19220+0337
TDT1402

61' : 19291+0239
SRW 9AB

62' : 19277+0358
A 2272

64' : 19290+0343
HJ 2872AB

64' : 19259+0410
J 2175

65' : 19296+0245
BAL1993



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.

19255+0307 BNU 6 Aa,Ab

 
 
19h 25m 29.90s +03° 06' 53.2" P.A. 130.00 sep 0.1 mag 3.40, Sp F3IV dist. 15.53 pc (50.66 l.y.)
 
 
Coord 2000 19255+0307 Discov num BNU   6 Comp Aa,Ab Coord arcsec 2000 19 25 29.90 +03 06 53.2
Date first 1979 Date last 1979 Obs 1
Pa first 130 Pa last 130 P.A. Now (θ) 130°
Sep first 0.1 Sep last 0.132 Sep. Now (ρ) 0.132"
Mag pri 3.40 Mag sec delta mag (ΔM) Spectral class F3IV (yellow-white)
Pri motion ra +255 Sec motion ra
Pri motion dec +083 Sec motion dec
Notes N X (See Notes, Dubious double)
Nature of this double is uncertain.
 
 
19255+0307 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 124603 19 25 30 +03 06 53 BNU 6 Aa,Ab 1979 1 130 0.1 3.40 Y <===
Show Del Aql 124603 19 25 30 +03 06 53 BUP 190 AB 2016 10 266 137.0 3.36 12.75 9.39
Show 124603 19 25 30 +03 06 53 VLM 1 AC 2006 1 338 34.3 3.36 13.30 9.94
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV12004 Aql Constellation Aquila SAO 124603 HIP 95501
Tycho2 0469-06227-1 Gaia DR2 4289041379334773888 HD 182640 HR 7377
GC 26816 GL Gl 760 BD BD+02 3879 Bayer Delta Aquilae
Bayer name Del Aql Flamsteed 30 Aquilae Flamsteed name 30 Aql FK5 730
Distance 15.53 Distance ly 50.66 Bayer greek δ Aql
 
 
ORBITAL ELEMENTS
 
 
Period (P)1251.3d (3.43y) Periastron (T)34955.5d (1954.581y) Semi-major axis (a)55.69m± 0.79
Eccentricity (e)0.36 Inclination (i)150° Longitude of periastron (ω)191°
Node (Ω)337° Notesn ReferenceHIP1997d
Equinox Last observation1991 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 11.9 0.060
2001-01-01 319.5 0.074
2002-01-01 244.4 0.044
2003-01-01 56.9 0.042
2004-01-01 339.4 0.075
2005-01-01 286.6 0.060
2006-01-01 141.2 0.035
2007-01-01 1.9 0.065
2008-01-01 312.2 0.072
2009-01-01 222.5 0.040
2010-01-01 37.2 0.048
2011-01-01 332.5 0.075
2012-01-01 274.7 0.055
2013-01-01 109.4 0.035
2014-01-01 353.4 0.070
2015-01-01 304.3 0.069
2016-01-01 196.6 0.038
2017-01-01 22.3 0.055
2018-01-01 325.6 0.075
2019-01-01 260.2 0.049
2020-01-01 79.1 0.037
2021-01-01 345.7 0.073
2022-01-01 295.5 0.064
2023-01-01 167.9 0.036
2024-01-01 10.5 0.061
2025-01-01 318.6 0.074
2026-01-01 241.9 0.044
2027-01-01 54.1 0.042
2028-01-01 338.5 0.075
2029-01-01 285.3 0.059
2030-01-01 137.3 0.035


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds19255%2B0307s.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19255+0307 BNU 6 Aa,Ab : NOTES
 
 
discov_num notes refcode
BNU 6 Aa,Ab: del Aql = 30 Aql. A is a spectroscopic binary, now resolved by
speckle interferometry.
Hipparcos astrometric solution adopts some elements from the HIP1997d
spectroscopic orbit of Kamper et al. (1989). Kpr1989
The spectroscopic binary remains unresolved, BNU 6 is not real Msn2023a
and the speckle measure from Bonneau & Foy 1980 is no good. Bnu1980b
 
 
REFERENCES
 
 
refcode metd author reference
Bnu1980b S j Bonneau, D., Blazit, A., Foy, R. & Labeyrie, A. 1980A&AS...42..185B
Bnu1980b A&AS 42, 185, 1980
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Kpr1989 Si j Kamper, K.W., Legget, D., & McCarthy, D.W. 1989AJ.....98..686K
Kpr1989 +orb AJ 98, 686, 1989
Msn2023a Su j Mason, B.D., et al. ...................
Msn2023a in preparation
 
 
DISCOVERER
 
 
idgroup discov author
1 BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
1 VLM Vollmann, W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19255+0307 BNU 6 Aa,Ab 1979 1 130 0.1 3.40   F3IV NO 192529.75+030652.5

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

 
 
WDS 19255+0307 BNU 6 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19255+0307 BNU 6 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 19255+0307 : VIRTUAL EYEPIECE
 
 

19255+0307 BUP 190A mag 3.36 Sp F3IV 19255+0307 BNU 6Ab sep 0.1 P.A. 130.00 19255+0307 BUP 190B sep 136.8 P.A. 266.20 mag 12.75 19255+0307 VLM 1C sep 34.2 P.A. 338.20 mag 13.3 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 19255+0307 : ALADIN DSS IMAGE @ 19h 25m 29.90s +03° 06' 53.2"
 
 
 
 
WDS 19255+0307 BNU 6 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19255+0307 BNU 6Aa,Ab distance=0' 19257+0314 HEI 811 distance=8' 19248+0254 BAL1985 distance=17' 19243+0305 HJ 885AB distance=18' 19243+0305 J 2694AC distance=18' 19255+0325 A 2271 distance=19' 19255+0325 GII 283Aa,Ab distance=19' 19272+0312 HEI 812 distance=27' 19248+0235 BAL1984AB distance=34' 19248+0235 FYM 273BC distance=34' 19248+0231 J 2965 distance=36' 19281+0303 BAL1991 distance=40' 19252+0227 STF2513 distance=40' 19267+0229 KPP 708 distance=42' 19267+0344 BAL2511 distance=43' 19264+0218 BAL1990 distance=51' 19259+0216 BAL1988 distance=52' 19289+0317 BAL2513 distance=52' 19220+0310 H 5 31 distance=53' 19263+0216 BAL1989 distance=53' 19259+0208 BAL1518 distance=60' 19295+0305 A 2197AB distance=60' 19295+0305 STF2531AC distance=60' 19294+0255 BAL1992 distance=61' 19263+0208 BAL1519 distance=61' 19220+0337 TDT1402 distance=61' 19291+0239 SRW 9AB distance=61' 19291+0239 SRW 9AC distance=61' 19291+0239 SRW 9AD distance=61' 19277+0358 A 2272 distance=62' 19290+0343 HJ 2872AB distance=64' 19290+0343 HJ 2872AC distance=64' 19259+0410 J 2175 distance=64' 19296+0245 BAL1993 distance=65' 19234+0210 TDT1412 distance=66' 19243+0410 J 148 distance=66' 19279+0402 BAL2512 distance=66' 19252+0415 J 3275 distance=67' 19279+0210 BLL 38 distance=67' 19246+0414 GCB 40 distance=68' 19271+0412 J 3276 distance=70' 19298+0239 BAL1994 distance=70' 19293+0223 J 2176BC distance=71' 19293+0223 J 2176AB distance=71' 19276+0203 CRI 22 distance=72' 19302+0254 STF2532BC distance=72' 19302+0254 STF2532BD distance=72' 19302+0254 STF2532AB distance=72' 19302+0254 STF2532AC distance=72' 19206+0256 HWE 47 distance=74' 19303+0333 TDT1506 distance=77' 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 19255+0307 BNU 6 Aa,Ab 130 0.1
Show 19255+0307 BUP 190 AB 266 137.0
Show 19255+0307 VLM 1 AC 338 34.3
Show 19257+0314 HEI 811 257 1.5 8
Show 19248+0254 BAL1985 302 16.0 17
Show 19243+0305 HJ 885 AB 140 6.0 18
Show 19243+0305 J 2694 AC 140 7.8 18
Show 19255+0325 A 2271 269 2.1 19
Show 19255+0325 GII 283 Aa,Ab 130 0.1 19
Show 19272+0312 HEI 812 72 0.7 27
Show 19248+0235 BAL1984 AB 118 15.9 34
Show 19248+0235 FYM 273 BC 200 18.8 34
Show 19248+0231 J 2965 340 3.5 36
Show 19281+0303 BAL1991 208 13.6 40
Show 19252+0227 STF2513 330 2.0 40
Show 19267+0229 KPP 708 275 6.3 42
Show 19267+0344 BAL2511 90 7.0 43
Show 19264+0218 BAL1990 188 2.4 51
Show 19259+0216 BAL1988 125 7.7 52
Show 19289+0317 BAL2513 55 12.8 52
Show 19220+0310 H 5 31 65 31.7 53
Show 19263+0216 BAL1989 54 10.8 53
Show 19259+0208 BAL1518 354 8.3 60
Show 19295+0305 A 2197 AB 243 2.7 60
Show 19295+0305 STF2531 AC 28 31.4 60
Show 19294+0255 BAL1992 224 12.8 61
Show 19263+0208 BAL1519 283 13.3 61
Show 19220+0337 TDT1402 181 0.9 61
Show 19291+0239 SRW 9 AB 259 29.2 61
Show 19291+0239 SRW 9 AC 319 25.2 61
Show 19291+0239 SRW 9 AD 293 15.3 61
Show 19277+0358 A 2272 200 4.1 62
Show 19290+0343 HJ 2872 AB 111 9.8 64
Show 19290+0343 HJ 2872 AC 232 12.5 64
Show 19259+0410 J 2175 193 5.7 64
Show 19296+0245 BAL1993 321 4.7 65
Show 19234+0210 TDT1412 113 0.6 66
Show 19243+0410 J 148 164 5.2 66
Show 19279+0402 BAL2512 334 18.3 66
Show 19252+0415 J 3275 274 7.6 67
Show 19279+0210 BLL 38 253 116.4 67
Show 19246+0414 GCB 40 113 2.5 68
Show 19271+0412 J 3276 211 4.6 70
Show 19298+0239 BAL1994 298 10.5 70
Show 19293+0223 J 2176 BC 310 6.4 71
Show 19293+0223 J 2176 AB 31.7 71
Show 19276+0203 CRI 22 352 7.9 72
Show 19302+0254 STF2532 BC 194 151.3 72
Show 19302+0254 STF2532 BD 133 33.6 72
Show 19302+0254 STF2532 AB 2 33.0 72
Show 19302+0254 STF2532 AC 197 119.4 72

 
 
WDS 19255+0307 : COMPONENTS
 
 
  A Ab B
Ab pa=130.0°
sep=0.13"
 
B pa=266.2°
sep=136.76"
pa=266.2°
sep=136.86"
 
C pa=338.2°
sep=34.25"
pa=338.1°
sep=34.37"
pa=71.7°
sep=130.34"
 
 
19255+0307 A
 
 
Name Del Aql Coord arcsec 2000 192529.90+030653.2 Mag 3.36 Spectral class F3IV (yellow-white)
PmRA 255.00 PmDE 83.0 SAO 124603 HIP 95501
Tycho2 0469-06227-1 HD 182640 HR 7377 GC 26816
BD BD+02 3879 Bayer Delta Aquilae Bayer name Del Flamsteed 30 Aquilae
Flamsteed name 30 Aql FK5 730
Tycho2
Tycho2 0469-06227-1 Pflag RAmdeg 291.37457816 DEmdeg 3.11478558
PmRA 254.8 PmDE 82.1 E RAmdeg 3 E DEmdeg 3
E pmRA 0.3 E pmDE 0.3 EpRAm 1990.02 EpDEm 1990.16
Num 24 Q RAmdeg 2.0 Q DEmdeg 2.0 Q pmRA 2.0
Q pmDE 2.0 BTmag 3.738 E BTmag 0.014 VTmag 3.390
E VTmag 0.009 Prox 999 TYC T HIP 95501
CCDM RAdeg 291.37399528 DEdeg 3.11459500 EpRA 1990 1.79
EpDE 1990 1.63 E RAdeg 3.2 E DEdeg 3.4 Posflg
Corr 0.0
SAO
SAO 124603 DelFlag RA1950 PmRA1950 0.0169
DE1950 PmDE1950 0.083 Vmag 3.4 SpType F0
Double code Source 74 CatNum 730 DM BD+02 3879
DMcomp BDsup HD 182640 M HD 0
GC 26816 RA1950rad 5.07444279 DE1950rad 0.05259733 PmRA2000 0.0171
PmDE2000 0.082
Hipparcos
Catalog H HIP 95501 Proxy RAhms 19 25 29.75
DEdms +03 06 52.5 Vmag 3.36 VarFlag R Vmag G
RAdeg 291.374 DEdeg 3.11458 AstroRef + Plx 65.05
CCDM 19254+0307 N CCDM I Nsys 1 Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 182640 BD BD+02 3879
CD CP Dm number +02 3879 VIred 0.38
SpType F0IV R SpType Coord arcsec 2000 192529.75+030652.5
Hipparcos 2
HIP 95501 Sn 75 So 4 Nc 1
RArad 5.0854351232 DErad 0.0543596572 Plx 64.41 PmRA 254.54
PmDE 82.51 E RArad 0.83 E DErad 0.57 E Plx 1
E pmRA 1.19 E pmDE 0.77 Hpmag 3.4408 E Hpmag 0.0004
SHp 0.004 VA 0 BV 0.319 E BV 0.004
VI 0.38
 
 
19255+0307 Ab
 
 
Coord arcsec 2000 192529.91+030653.1 Calc delta mag 3.4 Calc coord yes
 
 
19255+0307 B
 
 
Coord arcsec 2000 192520.79+030644.1 Mag 12.75 PmRA 1.00 PmDE -6.0
Calc delta mag 9.35 Calc coord yes
 
 
19255+0307 C
 
 
Coord arcsec 2000 192529.05+030725.0 Mag 13.3 PmRA -1.00 PmDE -1.0
Calc delta mag 9.9 Calc coord yes