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Doubles in session


Current system
20041+5428
STI 2497
HD 190780


Nearby doubles
9' : 20050+5426
MGN 1

21' : 20021+5439
BU 426AB

27' : 20071+5431
TDT1991

42' : 20086+5444
STI2504

46' : 19596+5451
STI2491

49' : 20034+5515
HJ 1480

55' : 20048+5522
STI2499

56' : 19577+5423
STI2488

58' : 20020+5523
STI2495

59' : 20103+5452
TDT2043

60' : 19575+5442
STI2487

62' : 20112+5422
STI2509

63' : 19581+5355
ARG 35

64' : 19569+5434
STI2484

67' : 20084+5524
STI2503

69' : 19573+5501
TDT1873

70' : 19562+5427
STI2478

71' : 20034+5318
TOI1310

72' : 19560+5419
ES 985

72' : 19592+5526
STI2490

75' : 20124+5447
TDT2082

76' : 20021+5541
TDT1926

78' : 20007+5540
STI2492

78' : 20042+5546
STI2498

79' : 20087+5320
A 1417

80' : 20129+5408
TDT2092



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

20041+5428 STI 2497 (HD 190780)

 
 
20h 04m 07.19s +54° 27' 58.7" P.A. 30.00 sep 12.5 mag 7.79,11.10 Sp K0
 
 
Coord 2000 20041+5428 Discov num STI2497 Comp Coord arcsec 2000 20 04 07.19 +54 27 58.7
Date first 1917 Date last 2015 Obs 22
Pa first 124 Pa last 29.9 P.A. Now (θ) 29.9°
Sep first 10.1 Sep last 12.527 Sep. Now (ρ) 12.527"
Mag pri 7.79 Mag sec 11.10 delta mag (ΔM) 3.31 Spectral class K0 (yellow-orange)
Pri motion ra +052 Sec motion ra +034
Pri motion dec -118 Sec motion dec +042
Notes N L (See Notes, Linear solution)
rPM=1.249
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 190780 Constellation Cygnus SAO 32254 Tycho2 3940-01134-1
Gaia DR2 2185760984958189568 HD 190780
 
 
WDS 20041+5428 STI 2497 (HD 190780) : NOTES
 
 
discov_num notes refcode
STI2497 MLR 581.
STI2497 Rectilinear solution by Hurowitz et al. (2014). USN2014b
 
 
REFERENCES
 
 
refcode metd author reference
USN2014b lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.183....1H
USN2014b Inf. Circ. 183, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 STI Stein, J. (see Vat1926)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20041+5428 STI2497 1999 5 39 10.6 7.79 11.10 K0 N D 200407.19+542758.7
20041+5428 STI2497 2004 6 36 11.2 7.79 11.10 K0 N D 200407.19+542758.7
20041+5428 STI2497 2010 7 32 12.0 7.79 11.10 K0 NUD 200407.19+542758.7
20041+5428 STI2497 2015 9 30 12.5 7.79 11.10 K0 NL 200407.19+542758.7

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

 
 
WDS 20041+5428 STI 2497 (HD 190780) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20041+5428 STI 2497 (HD 190780) : MEASURES
 
 
No records found.

 
 
WDS 20041+5428 (HD 190780) : VIRTUAL EYEPIECE
 
 

20041+5428 STI2497A mag 7.79 Sp K0 20041+5428 STI2497B sep 11.4 P.A. 18.50 mag 11.1 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20041+5428 (HD 190780) : ALADIN DSS IMAGE @ 20h 04m 07.19s +54° 27' 58.7"
 
 
 
 
WDS 20041+5428 STI 2497 (HD 190780) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20041+5428 STI2497 distance=0' 20050+5426 MGN 1 distance=9' 20021+5439 MLR 580EF distance=18' 20021+5439 BU 427CD distance=20' 20021+5439 ENG 68CE distance=20' 20021+5439 BU 426AB distance=21' 20021+5439 BU 426AC distance=21' 20071+5431 TDT1991 distance=27' 20086+5444 STI2504 distance=42' 19596+5451 STI2491 distance=46' 20034+5515 HJ 1480 distance=49' 20048+5522 STI2499 distance=55' 19577+5423 STI2488 distance=56' 20020+5523 STI2495 distance=58' 20103+5452 TDT2043 distance=59' 19575+5442 STI2487 distance=60' 20112+5422 STI2509 distance=62' 19581+5355 ARG 35 distance=63' 19569+5434 STI2484 distance=64' 20084+5524 STI2503 distance=67' 19573+5501 TDT1873 distance=69' 19562+5427 STI2478 distance=70' 20034+5318 TOI1310 distance=71' 19560+5419 ES 985 distance=72' 19592+5526 STI2490 distance=72' 20124+5447 TDT2082 distance=75' 20021+5541 TDT1926 distance=76' 20007+5540 STI2492 distance=78' 20042+5546 STI2498 distance=78' 20087+5320 A 1417 distance=79' 20129+5408 TDT2092 distance=80' 20062+5310 ENG 70 distance=81' 20124+5354 HDS2880 distance=81' 20134+5416 STI2514 distance=82' 20140+5428 TDT2108 distance=86' 20091+5546 STI2505 distance=89' 20142+5445 A 1422 distance=89' 20082+5556 STI2502 distance=95' 20143+5501 TDT2111 distance=95' 20116+5539 STI2511 distance=96' 19531+5430 STI2471CD distance=97' 19531+5430 STI2471AB distance=97' 19531+5430 STI2471AB,CD distance=97' 20153+5429 TDT2122 distance=98' 20153+5428 TDT2123 distance=98' 19587+5555 STI2489 distance=99' 20152+5409 HO 455AB distance=100' 20152+5409 HO 455AD distance=100' 20152+5409 HO 455AE distance=100' 20146+5349 ES 987 distance=100' 20152+5409 HO 455BC distance=100' 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 20041+5428 STI2497 30 12.5
Show 20050+5426 MGN 1 115 188.5 9
Show 20021+5439 MLR 580 EF 159 0.6 18
Show 20021+5439 BU 427 CD 336 3.1 20
Show 20021+5439 ENG 68 CE 158 160.3 20
Show 20021+5439 BU 426 AB 306 5.9 21
Show 20021+5439 BU 426 AC 53 163.2 21
Show 20071+5431 TDT1991 333 2.0 27
Show 20086+5444 STI2504 64 11.3 42
Show 19596+5451 STI2491 233 9.7 46
Show 20034+5515 HJ 1480 97 14.3 49
Show 20048+5522 STI2499 143 9.0 55
Show 19577+5423 STI2488 4 8.7 56
Show 20020+5523 STI2495 178 5.5 58
Show 20103+5452 TDT2043 36 2.1 59
Show 19575+5442 STI2487 229 6.7 60
Show 20112+5422 STI2509 257 7.8 62
Show 19581+5355 ARG 35 227 7.4 63
Show 19569+5434 STI2484 29 7.8 64
Show 20084+5524 STI2503 159 10.8 67
Show 19573+5501 TDT1873 38 1.7 69
Show 19562+5427 STI2478 152 14.7 70
Show 20034+5318 TOI1310 123 9.4 71
Show 19560+5419 ES 985 291 3.1 72
Show 19592+5526 STI2490 18 8.0 72
Show 20124+5447 TDT2082 349 2.2 75
Show 20021+5541 TDT1926 194 2.7 76
Show 20007+5540 STI2492 154 3.9 78
Show 20042+5546 STI2498 119 13.8 78
Show 20087+5320 A 1417 173 0.6 79
Show 20129+5408 TDT2092 230 0.6 80
Show 20062+5310 ENG 70 136 170.0 81
Show 20124+5354 HDS2880 274 0.1 81
Show 20134+5416 STI2514 203 7.9 82
Show 20140+5428 TDT2108 311 0.8 86
Show 20091+5546 STI2505 15 10.2 89
Show 20142+5445 A 1422 351 2.8 89
Show 20082+5556 STI2502 65 14.9 95
Show 20143+5501 TDT2111 154 2.0 95
Show 20116+5539 STI2511 337 13.1 96
Show 19531+5430 STI2471 CD 299 10.5 97
Show 19531+5430 STI2471 AB 113 11.7 97
Show 19531+5430 STI2471 AB,CD 358 141.8 97
Show 20153+5429 TDT2122 342 0.5 98
Show 20153+5428 TDT2123 328 2.0 98
Show 19587+5555 STI2489 303 10.5 99
Show 20152+5409 HO 455 AB 83 35.1 100
Show 20152+5409 HO 455 AD 263 31.4 100
Show 20152+5409 HO 455 AE 71 39.6 100
Show 20146+5349 ES 987 293 7.9 100
Show 20152+5409 HO 455 BC 176 4.0 100

 
 
WDS 20041+5428 : COMPONENTS
 
 
  A
B pa=18.5°
sep=11.45"
 
 
20041+5428 A
 
 
Componente originario normalizzato AB Name HD 190780 Coord arcsec 2000 200407.19+542758.7 Mag 7.79
Spectral class K0 (yellow-orange) PmRA 52.00 PmDE -118.0 SAO 32254
Tycho2 3940-01134-1 HD 190780 DM BD+54 2281
Tycho2
Tycho2 3940-01134-1 Pflag RAmdeg 301.02997278 DEmdeg 54.46632394
PmRA 52.2 PmDE -117.9 E RAmdeg 5 E DEmdeg 5
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.44 EpDEm 1991.42
Num 8 Q RAmdeg 0.8 Q DEmdeg 0.6 Q pmRA 0.8
Q pmDE 0.7 BTmag 8.911 E BTmag 0.017 VTmag 7.789
E VTmag 0.011 Prox 999 TYC T HIP
CCDM RAdeg 301.02976528 DEdeg 54.46659750 EpRA 1990 1.70
EpDE 1990 1.65 E RAdeg 5.2 E DEdeg 5.3 Posflg
Corr 0.0
SAO
SAO 32254 DelFlag RA1950 PmRA1950 0.0069
DE1950 PmDE1950 -0.118 Vmag 7.6 SpType K0
Double code Source 37 CatNum 6353 DM BD+54 2281
DMcomp BDsup HD 190780 M HD 0
GC RA1950rad 5.2485829 DE1950rad 0.94815277 PmRA2000 0.0075
PmDE2000 -0.119
CCDM
Ccdm 20041+5428 RComp Comp A Note1
Note2 Discov num DRAs 1.22 DDEs -0.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.0 Sp K0 PmNote *
PmRA 55 PmDE -109 Dm number +54 2281 Cat1 BD
Name2 +54 1285 Cat2 AGK2/3 HD 190780 M HD
ADS BDS M ADS BDS N IDS IDS 20017N5411A
HIC
 
 
20041+5428 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200407.61+542809.6 Mag 11.1 PmRA 34.00
PmDE 42.0 Calc delta mag 3.31 Calc coord yes
CCDM
Ccdm 20041+5428 RComp Comp B Note1
Note2 Discov num STI2497 DRAs DDEs
R dRAs Year 1917 Theta 123 Rho 10.1
Obs 1 Vmag 11.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20017N5411B
HIC