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Current system
18493+3301
ES 2287 AB
HD 173755


Nearby doubles
14' : 18498+3249
H 5 40AB

16' : 18495+3316
STF2407

20' : 18488+3319
HJ 1349AB

20' : 18506+3313
TAR 3AB

23' : 18501+3322
STFA 39AB
Sheliak

25' : 18494+3324
J 765

25' : 18476+3248
COU1154

26' : 18473+3302
TDS 945

29' : 18499+3233
HO 440

32' : 18469+3254
KPP4121

42' : 18491+3343
UC 3682

43' : 18527+3301
BAR 46AB

43' : 18523+3321
ES 2233AB

45' : 18461+3242
SEI 575

45' : 18497+3223
J 131

48' : 18462+3328
COU1152

51' : 18533+3302
POP 192

54' : 18536+3303
HL 9001AB

56' : 18537+3256
ITF 165

61' : 18487+3401
HU 936

62' : 18466+3210
HU 935

62' : 18447+3237
LDS4797

63' : 18457+3218
SEI 574

68' : 18545+3243
TDT1122

68' : 18546+3311
ES 2234

69' : 18548+3306
DAL 10



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

18493+3301 ES 2287 AB (HD 173755)

 
 
18h 49m 18.62s +33° 00' 57.5" P.A. 292.00 sep 3.8 mag 10.90,12.30
 
 
Coord 2000 18493+3301 Discov num ES 2287 Comp AB Coord arcsec 2000 18 49 18.62 +33 00 57.5
Date first 1927 Date last 2019 Obs 11
Pa first 287 Pa last 292 P.A. Now (θ) 292°
Sep first 2.9 Sep last 3.82 Sep. Now (ρ) 3.82"
Mag pri 10.90 Mag sec 12.30 delta mag (ΔM) 1.4 Spectral class
Pri motion ra +037 Sec motion ra
Pri motion dec -017 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18493+3301 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 49 19 +33 00 58 ES 2287 Aa,Ab 2016 1 217 0.3 10.90 11.00 0.10
Show HD 173755 18 49 19 +33 00 58 ES 2287 AB 2019 11 292 3.8 10.90 12.30 1.40 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173755 Constellation Lyra Tycho2 8381-00268-1 HD 173755
DM CD-4812735
 
 
WDS 18493+3301 ES 2287 AB (HD 173755) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
ES Espin, T.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18493+3301 ES 2287 AB 2019 11 292 3.8 10.90 12.30 184918.62+330057.5

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

 
 
WDS 18493+3301 ES 2287 AB (HD 173755) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18493+3301 ES 2287 AB (HD 173755) : MEASURES
 
 
No records found.

 
 
WDS 18493+3301 (HD 173755) : VIRTUAL EYEPIECE
 
 

18493+3301 ES 2287A mag 10.9 18493+3301 ES 2287Ab sep 0.3 P.A. 216.70 mag 11 18493+3301 ES 2287B sep 3.8 P.A. 292.00 mag 12.3 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18493+3301 (HD 173755) : ALADIN DSS IMAGE @ 18h 49m 18.62s +33° 00' 57.5"
 
 
 
 
WDS 18493+3301 ES 2287 AB (HD 173755) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18493+3301 ES 2287AB distance=0' 18498+3249 H 5 40AB distance=14' 18498+3249 H 5 40AC distance=14' 18498+3249 WAL 95AE distance=14' 18498+3249 WAL 95AF distance=14' 18498+3249 H 5 40CD distance=15' 18495+3316 STF2407 distance=16' 18488+3319 HJ 1349AB distance=20' 18506+3313 TAR 3BC distance=20' 18506+3313 TAR 3AB distance=20' 18506+3313 BKO 54AD distance=20' 18501+3322 BU 293BE distance=23' 18501+3322 BU 293BF distance=23' 18501+3322 RBR 11Aa,Ab distance=23' 18501+3322 STFA 39AB (Sheliak) distance=23' 18501+3322 BU 293AC (Sheliak) distance=23' 18501+3322 BU 293AD (Sheliak) distance=23' 18501+3322 BU 293AE (Sheliak) distance=23' 18501+3322 BU 293AF (Sheliak) distance=23' 18501+3322 CIA 3Aa1,2 (Sheliak) distance=23' 18501+3322 SMR 93AG (Sheliak) distance=23' 18501+3322 BU 293EF distance=24' 18494+3324 J 765 distance=25' 18476+3248 COU1154 distance=25' 18473+3302 TDS 945 distance=26' 18499+3233 HO 440 distance=29' 18469+3254 KPP4121 distance=32' 18527+3301 WLY 1CD distance=42' 18491+3343 UC 3682 distance=42' 18523+3321 ES 2233BC distance=42' 18523+3321 ES 2233BD distance=42' 18527+3301 BAR 46AB distance=43' 18527+3301 BAR 46AC distance=43' 18523+3321 ES 2233AB distance=43' 18461+3242 SEI 575 distance=45' 18497+3223 J 131 distance=45' 18462+3328 COU1152 distance=48' 18533+3302 POP 192 distance=51' 18536+3303 HL 9001AB distance=54' 18536+3303 HL 9001AC distance=54' 18537+3256 ITF 165 distance=56' 18487+3401 HU 936 distance=61' 18466+3210 HU 935 distance=62' 18447+3237 LDS4797 distance=62' 18457+3218 SEI 574 distance=63' 18545+3243 TDT1122 distance=68' 18546+3311 ES 2234 distance=68' 18548+3306 DAL 10 distance=69' 18501+3149 A 256AB distance=73' 18501+3149 A 256Aa,Ab distance=73' 18496+3415 COU1155 distance=75' 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 18493+3301 ES 2287 AB 292 3.8 0
Show 18493+3301 ES 2287 Aa,Ab 217 0.3 0
Show 18498+3249 H 5 40 AB 76 33.7 14
Show 18498+3249 H 5 40 AC 120 57.5 14
Show 18498+3249 WAL 95 AE 350 80.0 14
Show 18498+3249 WAL 95 AF 349 70.5 14
Show 18498+3249 H 5 40 CD 212 18.5 15
Show 18495+3316 STF2407 207 30.0 16
Show 18488+3319 HJ 1349 AB 93 29.9 20
Show 18506+3313 TAR 3 BC 213 3.2 20
Show 18506+3313 TAR 3 AB 302 15.8 20
Show 18506+3313 BKO 54 AD 192 14.0 20
Show 18501+3322 BU 293 BE 322 112.4 23
Show 18501+3322 BU 293 BF 1 120.6 23
Show 18501+3322 RBR 11 Aa,Ab 176 0.5 23
Show Sheliak 18501+3322 STFA 39 AB 148 45.5 23
Show Sheliak 18501+3322 BU 293 AC 247 46.6 23
Show Sheliak 18501+3322 BU 293 AD 68 64.0 23
Show Sheliak 18501+3322 BU 293 AE 317 67.1 23
Show Sheliak 18501+3322 BU 293 AF 18 85.7 23
Show Sheliak 18501+3322 CIA 3 Aa1,2 88 0.0 23
Show Sheliak 18501+3322 SMR 93 AG 175 92.3 23
Show 18501+3322 BU 293 EF 66 79.4 24
Show 18494+3324 J 765 333 2.3 25
Show 18476+3248 COU1154 57 0.6 25
Show 18473+3302 TDS 945 318 1.5 26
Show 18499+3233 HO 440 175 18.3 29
Show 18469+3254 KPP4121 75 6.5 32
Show 18527+3301 WLY 1 CD 125 6.6 42
Show 18491+3343 UC 3682 310 18.4 42
Show 18523+3321 ES 2233 BC 89 2.4 42
Show 18523+3321 ES 2233 BD 117 7.8 42
Show 18527+3301 BAR 46 AB 128 2.1 43
Show 18527+3301 BAR 46 AC 251 40.6 43
Show 18523+3321 ES 2233 AB 247 44.6 43
Show 18461+3242 SEI 575 263 28.6 45
Show 18497+3223 J 131 177 2.9 45
Show 18462+3328 COU1152 259 1.7 48
Show 18533+3302 POP 192 43 2.5 51
Show 18536+3303 HL 9001 AB 263 4.9 54
Show 18536+3303 HL 9001 AC 4 18.9 54
Show 18537+3256 ITF 165 115 7.0 56
Show 18487+3401 HU 936 101 1.8 61
Show 18466+3210 HU 935 153 3.1 62
Show 18447+3237 LDS4797 28 47.5 62
Show 18457+3218 SEI 574 263 18.7 63
Show 18545+3243 TDT1122 329 1.2 68
Show 18546+3311 ES 2234 300 6.7 68
Show 18548+3306 DAL 10 51 30.6 69
Show 18501+3149 A 256 AB 60 2.9 73
Show 18501+3149 A 256 Aa,Ab 35 0.3 73

 
 
WDS 18493+3301 : COMPONENTS
 
 
  A Ab
Ab pa=216.7°
sep=0.26"
 
B pa=292.0°
sep=3.82"
pa=295.9°
sep=3.76"
 
 
18493+3301 A
 
 
Name HD 173755 Coord arcsec 2000 184918.62+330057.5 Mag 10.9 PmRA 37.00
PmDE -17.0 HD 173755
 
 
18493+3301 Ab
 
 
Coord arcsec 2000 184918.61+330057.3 Mag 11 Delta magnitude 0.1 Coordinate calculated yes
 
 
18493+3301 B
 
 
Coord arcsec 2000 184918.34+330058.9 Mag 12.3 Delta magnitude 1.4 Coordinate calculated yes