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Current system
17118+2232
ALP 21


Nearby doubles
20' : 17111+2216
DAM 962

33' : 17133+2208
KPP 635

34' : 17107+2202
DAM 949

35' : 17099+2209
DAM 927

37' : 17093+2244
OSO 76

38' : 17139+2255
TDT 274

40' : 17129+2309
COU 314

42' : 17147+2227
NSN 688

43' : 17107+2312
TDT 250

45' : 17147+2215
ITF 156

46' : 17148+2214
ITF 11

47' : 17150+2219
ITF 155

48' : 17093+2304
POU3258

48' : 17129+2317
POU3263AB

50' : 17082+2228
DAM 886

52' : 17123+2324
POU3260

53' : 17080+2244
BRT2430

56' : 17122+2137
WFC 189

59' : 17086+2153
DAM 894

61' : 17079+2301
POU3257AB

63' : 17091+2141
DAM 907

66' : 17078+2308
POU3256

69' : 17103+2127
FAL 56

70' : 17125+2341
POU3261

70' : 17094+2334
DAM 915

71' : 17067+2225
COU 110



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

17118+2232 ALP 21

 
 
17h 11m 45.73s +22° 32' 04.4" P.A. 53.00 sep 36.6 mag 17.10,
 
 
Coord 2000 17118+2232 Discov num ALP  21 Comp Coord arcsec 2000 17 11 45.73 +22 32 04.4
Date first 2001 Date last 2001 Obs 1
Pa first 53 Pa last 53 P.A. Now (θ) 53°
Sep first 36.6 Sep last 36.6 Sep. Now (ρ) 36.6"
Mag pri 17.10 Mag sec delta mag (ΔM) Spectral class
Pri motion ra Sec motion ra
Pri motion dec Sec motion dec
Notes N U K (See Notes, Proper motion indicates non-physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules
 
 
WDS 17118+2232 ALP 21 : NOTES
 
 
discov_num notes refcode
ALP 21 2MASSI J1711457+223204
Physical companionship to this ultracool dwarf ruled out based on I-J
color, using I-band photometry taken at WIYN in August 2002. AlP2007
 
 
REFERENCES
 
 
refcode metd author reference
AlP2007 Ci - Allen, P.R., Koerner, D.W., McElwain, M.W., Cruz, K.L., & Reid, I.N. 2007AJ....133..971A
AlP2007 AJ 133, 971, 2007
AlP2007 (deep-imaging search for wide companions to 132 M7-L8 dwarfs, using IRTF NSFCam)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17118+2232 ALP 21 2001 1 53 36.6 17.10   N K 171145.73+223204.4

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

 
 
WDS 17118+2232 ALP 21 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17118+2232 ALP 21 : MEASURES
 
 
No records found.

 
 
WDS 17118+2232 : VIRTUAL EYEPIECE
 
 

17118+2232 ALP 21A mag 17.1 17118+2232 ALP 21B sep 34.8 P.A. 50.80 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 17118+2232 : ALADIN DSS IMAGE @ 17h 11m 45.73s +22° 32' 04.4"
 
 
 
 
WDS 17118+2232 ALP 21 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17118+2232 ALP 21 distance=0' 17111+2216 DAM 962 distance=20' 17133+2208 KPP 635 distance=33' 17107+2202 DAM 949 distance=34' 17099+2209 DAM 927 distance=35' 17093+2244 OSO 76 distance=37' 17139+2255 TDT 274 distance=38' 17129+2309 COU 314 distance=40' 17147+2227 NSN 688 distance=42' 17107+2312 TDT 250 distance=43' 17147+2215 ITF 156 distance=45' 17148+2214 ITF 11 distance=46' 17150+2219 ITF 155 distance=47' 17093+2304 POU3258 distance=48' 17129+2317 POU3263AB distance=48' 17129+2317 DAM 633AC distance=48' 17082+2228 DAM 886 distance=50' 17123+2324 POU3260 distance=52' 17080+2244 BRT2430 distance=53' 17122+2137 WFC 189 distance=56' 17086+2153 DAM 894 distance=59' 17079+2301 POU3257AB distance=61' 17079+2301 DAM 856AC distance=61' 17091+2141 DAM 907 distance=63' 17078+2308 POU3256 distance=66' 17103+2127 FAL 56 distance=69' 17125+2341 POU3261 distance=70' 17094+2334 DAM 915 distance=70' 17067+2225 COU 110 distance=71' 17069+2254 KUI 123 distance=72' 17161+2316 COU 315 distance=75' 17158+2322 POU3271 distance=76' 17161+2318 POU3274 distance=76' 17171+2252 POU3276 distance=77' 17064+2208 COU 109 distance=78' 17105+2116 DAM 945 distance=78' 17121+2114 STF2135AB distance=79' 17121+2114 STF2135AC distance=79' 17140+2119 COU 111AB distance=80' 17140+2119 GII 242Aa,Ab distance=80' 17063+2205 HO 556 distance=81' 17127+2352 POU3262 distance=82' 17104+2107 ALP 20AB distance=87' 17104+2107 ALP 20AC distance=87' 17111+2106 TDT 255 distance=87' 17107+2104 TDT 251 distance=90' 17084+2113 DAM 890AB distance=92' 17084+2113 DAM 890AC distance=92' 17148+2356 POU3265AB distance=94' 17148+2356 WSI 159AC distance=94' 17082+2110 DAM 887AB distance=96' 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 17118+2232 ALP 21 53 36.6
Show 17111+2216 DAM 962 303 6.6 20
Show 17133+2208 KPP 635 81 5.8 33
Show 17107+2202 DAM 949 234 4.2 34
Show 17099+2209 DAM 927 22 6.3 35
Show 17093+2244 OSO 76 313 15.5 37
Show 17139+2255 TDT 274 234 0.6 38
Show 17129+2309 COU 314 1.9 40
Show 17147+2227 NSN 688 111 2.9 42
Show 17107+2312 TDT 250 11 0.8 43
Show 17147+2215 ITF 156 26 14.1 45
Show 17148+2214 ITF 11 41 4.3 46
Show 17150+2219 ITF 155 190 2.3 47
Show 17093+2304 POU3258 59 10.9 48
Show 17129+2317 POU3263 AB 36 15.9 48
Show 17129+2317 DAM 633 AC 231 5.5 48
Show 17082+2228 DAM 886 234 9.0 50
Show 17123+2324 POU3260 284 11.5 52
Show 17080+2244 BRT2430 331 3.7 53
Show 17122+2137 WFC 189 302 6.6 56
Show 17086+2153 DAM 894 74 8.3 59
Show 17079+2301 POU3257 AB 334 18.0 61
Show 17079+2301 DAM 856 AC 17 8.9 61
Show 17091+2141 DAM 907 324 4.0 63
Show 17078+2308 POU3256 170 11.7 66
Show 17103+2127 FAL 56 99 8.8 69
Show 17125+2341 POU3261 222 3.5 70
Show 17094+2334 DAM 915 15 2.7 70
Show 17067+2225 COU 110 90 1.4 71
Show 17069+2254 KUI 123 325 4.2 72
Show 17161+2316 COU 315 117 0.1 75
Show 17158+2322 POU3271 259 3.3 76
Show 17161+2318 POU3274 297 9.3 76
Show 17171+2252 POU3276 120 6.4 77
Show 17064+2208 COU 109 140 8.5 78
Show 17105+2116 DAM 945 321 7.8 78
Show 17121+2114 STF2135 AB 194 8.7 79
Show 17121+2114 STF2135 AC 208 162.1 79
Show 17140+2119 COU 111 AB 250 0.6 80
Show 17140+2119 GII 242 Aa,Ab 9 0.1 80
Show 17063+2205 HO 556 140 8.5 81
Show 17127+2352 POU3262 11 19.5 82
Show 17104+2107 ALP 20 AB 278 7.7 87
Show 17104+2107 ALP 20 AC 124 24.0 87
Show 17111+2106 TDT 255 200 0.6 87
Show 17107+2104 TDT 251 302 0.5 90
Show 17084+2113 DAM 890 AB 255 2.9 92
Show 17084+2113 DAM 890 AC 164 9.5 92
Show 17148+2356 POU3265 AB 170 3.9 94
Show 17148+2356 WSI 159 AC 220 4.6 94
Show 17082+2110 DAM 887 AB 309 8.5 96

 
 
WDS 17118+2232 : COMPONENTS
 
 
  A
B pa=50.8°
sep=34.84"
 
 
17118+2232 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 171145.73+223204.4 Mag 17.1
 
 
17118+2232 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 171147.68+223226.4 Calc delta mag 17.1 Calc coord yes