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Current system
22579+1337
HU 989
HD 217075


Nearby doubles
24' : 22570+1318
BPM2467

29' : 22572+1403
J 669

30' : 22582+1306
HJ 3156

37' : 22595+1405
SLN 46

42' : 23003+1400
BU 850

43' : 22556+1313
DAM 821

43' : 22552+1351
DAM 820

51' : 22546+1324
WAA9010

54' : 22599+1251
GWP3219

57' : 22552+1254
HJ 303

61' : 22538+1336
HJ 1825

65' : 22536+1351
WAA9008

70' : 23022+1408
KPP 684

73' : 22569+1225
BRT1961

79' : 22530+1407
J 1347

79' : 23023+1251
NSN 10

88' : 22593+1212
OSO 186

91' : 22546+1221
GWP3207AB

92' : 22554+1212
GRV 622

94' : 22516+1335
CVR 270

95' : 22586+1203
STTA241

98' : 22514+1358
STT 597AB

98' : 22514+1331
HJ 1818

99' : 23007+1206
BRT1362

101' : 22510+1330
HEI 297

106' : 23010+1202
A 1237



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

22579+1337 HU 989 (HD 217075)

 
 
22h 57m 56.31s +13° 36' 42.0" P.A. 68.00 sep 0.2 mag 7.67,9.52 Sp F2 dist. 86.21 pc (281.22 l.y.)
 
 
Coord 2000 22579+1337 Discov num HU  989 Comp Coord arcsec 2000 22 57 56.31 +13 36 42.0
Date first 1904 Date last 2013 Obs 21
Pa first 76 Pa last 68.2 P.A. Now (θ) 68.2°
Sep first 0.4 Sep last 0.205 Sep. Now (ρ) 0.205"
Mag pri 7.67 Mag sec 9.52 delta mag (ΔM) 1.85 Spectral class F2 (yellow-white)
Pri motion ra +080 Sec motion ra +080
Pri motion dec +045 Sec motion dec +045
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 217075 Constellation Pegasus SAO 108292 HIP 113398
Tycho2 1159-00938-1 Gaia DR2 2815903227819173632 HD 217075 ADS 16403
BD BD+12 4919 Distance 86.21 Distance ly 281.22
 
 
ORBITAL ELEMENTS
 
 
Period (P)45y Periastron (T)1975y Semi-major axis (a)0.21a
Eccentricity (e)0.95 Inclination (i)115° Longitude of periastron (ω)196°
Node (Ω)79.5° Notesn ReferenceHei1998
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 71.8 0.391
2001 71.5 0.386
2002 71.2 0.381
2003 70.9 0.375
2004 70.6 0.368
2005 70.2 0.359
2006 69.8 0.349
2007 69.4 0.339
2008 69.0 0.326
2009 68.6 0.313
2010 68.1 0.298
2011 67.5 0.281
2012 66.9 0.263
2013 66.1 0.243
2014 65.3 0.221
2015 64.2 0.196
2016 62.8 0.168
2017 60.8 0.136
2018 57.3 0.099
2019 48.8 0.054
2020 252.6 0.010
2021 89.5 0.075
2022 84.6 0.125
2023 82.4 0.164
2024 80.9 0.197
2025 79.9 0.225
2026 79.1 0.249
2027 78.4 0.271
2028 77.8 0.290
2029 77.2 0.307
2030 76.8 0.322


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


 
  


wds22579%2B1337a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 22579+1337 HU 989 (HD 217075) : NOTES
 
 
discov_num notes refcode
HU 989 Magnitude difference for this easy pair much less than given by Hussey B__1963a
 
 
REFERENCES
 
 
refcode metd author reference
B__1963a Ma - van den Bos, W.H. 1963AJ.....68...57V
B__1963a AJ 68, 57, 1963
Hei1998 Ma j Heintz, W.D. 1998ApJS..117..587H
Hei1998 +orb ApJS 117, 587, 1998
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22579+1337 HU 989 1999 18 67 0.3 7.67 9.52 F2 OD 225756.31+133642.0
22579+1337 HU 989 2008 19 73 0.4 7.67 9.52 F2 OD 225756.31+133642.0
22579+1337 HU 989 2009 19 74 0.3 7.67 9.52 F2 NO 225756.31+133642.0
22579+1337 HU 989 2011 20 69 0.3 7.67 9.52 F2 NO 225756.31+133642.0
22579+1337 HU 989 2013 21 68 0.2 7.67 9.52 F2 NO 225756.31+133642.0

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

 
 
WDS 22579+1337 HU 989 (HD 217075) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22579+1337 HU 989 (HD 217075) : MEASURES
 
 
No records found.

 
 
WDS 22579+1337 (HD 217075) : VIRTUAL EYEPIECE
 
 

22579+1337 HU 989A mag 7.67 Sp F2 22579+1337 HU 989B sep 0.2 P.A. 67.60 mag 9.52 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 22579+1337 (HD 217075) : ALADIN DSS IMAGE @ 22h 57m 56.31s +13° 36' 42.0"
 
 
 
 
WDS 22579+1337 HU 989 (HD 217075) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22579+1337 HU 989 distance=0' 22570+1318 BPM2467 distance=24' 22572+1403 J 669 distance=29' 22582+1306 HJ 3156 distance=30' 22595+1405 SLN 46 distance=37' 23003+1400 BU 850 distance=42' 22556+1313 DAM 821 distance=43' 22552+1351 DAM 820 distance=43' 22546+1324 WAA9010 distance=51' 22599+1251 GWP3219 distance=54' 22552+1254 HJ 303 distance=57' 22538+1336 HJ 1825 distance=61' 22536+1351 WAA9008 distance=65' 23022+1408 KPP 684 distance=70' 22569+1225 BRT1961 distance=73' 22530+1407 J 1347 distance=79' 23023+1251 NSN 10 distance=79' 22593+1212 OSO 186 distance=88' 22546+1221 GWP3207AB distance=91' 22546+1221 GWP3208AC distance=91' 22554+1212 GRV 622 distance=92' 22546+1221 GWP3209CD distance=92' 22516+1335 CVR 270 distance=94' 22586+1203 STTA241 distance=95' 22514+1358 STT 597AB distance=98' 22514+1331 HJ 1818 distance=98' 23007+1206 BRT1362 distance=99' 22514+1358 BUP 233BC distance=100' 22510+1330 HEI 297 distance=101' 23010+1202 A 1237 distance=106' 22548+1511 STF2954 distance=106' 22569+1151 STF2958 distance=107' 23015+1202 BPM2473 distance=109' 22545+1517 HEI 193AB distance=111' 22545+1517 LAU 5AB,C distance=111' 23000+1526 SKF 991 distance=114' 22592+1144 STT 483 distance=115' 22504+1410 KPP2202 distance=116' 23009+1523 MLR 542 distance=116' 23060+1323 BPM2475 distance=119' 22499+1357 TDT3734 distance=119' 22505+1431 SHN 263 distance=121' 22596+1537 UC 4856 distance=123' 23023+1522 HU 992 distance=123' 23056+1435 AG 425 distance=126' 23052+1226 GWP3230 distance=127' 22538+1530 KPP1800 distance=129' 23049+1216 DBR 324 distance=130' 22514+1508 KPP4291 distance=132' 22557+1547 HU 987 distance=134' 22487+1349 HEI 296 distance=136' 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 22579+1337 HU 989 68 0.2
Show 22570+1318 BPM2467 154 8.4 24
Show 22572+1403 J 669 38 1.4 29
Show 22582+1306 HJ 3156 294 23.1 30
Show 22595+1405 SLN 46 237 9.1 37
Show 23003+1400 BU 850 121 3.3 42
Show 22556+1313 DAM 821 46 7.9 43
Show 22552+1351 DAM 820 165 11.3 43
Show 22546+1324 WAA9010 43 1.2 51
Show 22599+1251 GWP3219 219 11.2 54
Show 22552+1254 HJ 303 359 14.0 57
Show 22538+1336 HJ 1825 224 2.0 61
Show 22536+1351 WAA9008 259 1.0 65
Show 23022+1408 KPP 684 229 6.1 70
Show 22569+1225 BRT1961 302 4.8 73
Show 22530+1407 J 1347 352 1.3 79
Show 23023+1251 NSN 10 300 5.2 79
Show 22593+1212 OSO 186 91 22.7 88
Show 22546+1221 GWP3207 AB 185 7.1 91
Show 22546+1221 GWP3208 AC 202 76.8 91
Show 22554+1212 GRV 622 196 7.3 92
Show 22546+1221 GWP3209 CD 19 6.3 92
Show 22516+1335 CVR 270 319 55.4 94
Show 22586+1203 STTA241 160 84.9 95
Show 22514+1358 STT 597 AB 328 201.5 98
Show 22514+1331 HJ 1818 41 18.0 98
Show 23007+1206 BRT1362 144 4.7 99
Show 22514+1358 BUP 233 BC 194 115.6 100
Show 22510+1330 HEI 297 30 1.9 101
Show 23010+1202 A 1237 158 3.3 106
Show 22548+1511 STF2954 21 41.0 106
Show 22569+1151 STF2958 15 4.0 107
Show 23015+1202 BPM2473 259 101.9 109
Show 22545+1517 HEI 193 AB 211 0.9 111
Show 22545+1517 LAU 5 AB,C 316 22.4 111
Show 23000+1526 SKF 991 320 10.3 114
Show 22592+1144 STT 483 31 0.4 115
Show 22504+1410 KPP2202 357 18.2 116
Show 23009+1523 MLR 542 247 11.5 116
Show 23060+1323 BPM2475 156 53.0 119
Show 22499+1357 TDT3734 319 3.8 119
Show 22505+1431 SHN 263 274 0.9 121
Show 22596+1537 UC 4856 259 21.1 123
Show 23023+1522 HU 992 122 6.0 123
Show 23056+1435 AG 425 190 28.1 126
Show 23052+1226 GWP3230 221 27.9 127
Show 22538+1530 KPP1800 163 13.9 129
Show 23049+1216 DBR 324 199 3.7 130
Show 22514+1508 KPP4291 60 1.6 132
Show 22557+1547 HU 987 75 1.2 134
Show 22487+1349 HEI 296 342 0.7 136

 
 
WDS 22579+1337 : COMPONENTS
 
 
  A
B pa=67.6°
sep=0.20"
 
 
22579+1337 A
 
 
Componente originario normalizzato AB Name HD 217075 Coord arcsec 2000 225756.31+133642.0 Mag 7.67
Spectral class F2 (yellow-white) PmRA 80.00 PmDE 45.0 SAO 108292
HIP 113398 Tycho2 1159-00938-1 HD 217075 ADS 16403
BD BD+12 4919
Tycho2
Tycho2 1159-00938-1 Pflag RAmdeg 344.48461680 DEmdeg 13.61165861
PmRA 79.6 PmDE 44.5 E RAmdeg 5 E DEmdeg 5
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.28 EpDEm 1991.24
Num 11 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.0 BTmag 7.984 E BTmag 0.017 VTmag 7.517
E VTmag 0.011 Prox 999 TYC T HIP 113398
CCDM AB RAdeg 344.48442694 DEdeg 13.61155500 EpRA 1990 1.67
EpDE 1990 1.63 E RAdeg 4.7 E DEdeg 5.3 Posflg P
Corr -0.2
SAO
SAO 108292 DelFlag RA1950 PmRA1950 0.0064
DE1950 PmDE1950 0.038 Vmag 7.9 SpType F2
Double code Source 29 CatNum 9155 DM BD+12 4919
DMcomp BDsup HD 217075 M HD 0
GC RA1950rad 6.00150829 DE1950rad 0.23288113 PmRA2000 0.0065
PmDE2000 0.033
Hipparcos
Catalog H HIP 113398 Proxy H RAhms 22 57 56.26
DEdms +13 36 41.6 Vmag 7.47 VarFlag R Vmag H
RAdeg 344.484 DEdeg 13.6115 AstroRef A Plx 10.88
CCDM 22579+1337 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 70 Rho 0.344 HD 217075 BD BD+12 4919
CD CP Dm number +12 4919 VIred 0.51
SpType F2 R SpType Coord arcsec 2000 225756.26+133641.6
Hipparcos 2
HIP 113398 Sn 15 So 3 Nc 2
RArad 6.0123869938 DErad 0.2375662346 Plx 11.6 PmRA 74.85
PmDE 43.63 E RArad 0.77 E DErad 0.68 E Plx 0.88
E pmRA 0.85 E pmDE 0.85 Hpmag 7.5653 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.441 E BV 0.012
VI 0.51
CCDM
Ccdm 22579+1337 RComp Comp A Note1
Note2 Discov num DRAs 2.27 DDEs -16.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.9 Sp F2 PmNote *
PmRA 73 PmDE 69 Dm number +12 4919 Cat1 BD
Name2 +13 2479 Cat2 AGK2/3 HD 217075 M HD
ADS BDS A16403 M ADS BDS N IDS IDS 22530N1305A
HIC 113398
 
 
22579+1337 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 225756.32+133642.1 Mag 9.52 PmRA 80.00
PmDE 45.0 Calc delta mag 1.85 Calc coord yes
CCDM
Ccdm 22579+1337 RComp Comp B Note1
Note2 Discov num HU 989 DRAs DDEs
R dRAs Year 1957 Theta 070 Rho 0.4
Obs 9 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A16403 M ADS BDS N N IDS IDS 22530N1305B
HIC 113398