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Doubles in session


Current system
22038+6438
MCA 69 Aa,Ab


Nearby doubles
11' : 22022+6436
TDS1152

24' : 22005+6445
SMA 157

33' : 21597+6419
TDT3279

33' : 21587+6434
HJ 1713

36' : 21584+6432
TDT3266

39' : 22069+6405
WYL 1

43' : 22080+6405
HJ 1739

44' : 22092+6412
FOX 44

46' : 22093+6410
KPP3376

49' : 22094+6406
ES 213

49' : 21591+6400
HU 975AB

50' : 21591+6358
TDT3275

51' : 21559+6441
STI1072

51' : 21587+6359
MLB 225

52' : 21584+6359
TDT3267

56' : 22028+6343
TDT3307

56' : 22066+6346
MLB 226AB

59' : 21554+6500
TVB 7

60' : 22067+6534
HDS3140

62' : 22048+6539
HU 977

63' : 22058+6539
NI 44

64' : 22052+6335
HDS3136

67' : 22121+6518
TDT3400

67' : 22079+6337
TDT3360

67' : 21555+6519
STT 457

68' : 22036+6331
HDS3130



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.

22038+6438 MCA 69 Aa,Ab

 
 
22h 03m 47.45s +64° 37' 40.7" P.A. 102.00 sep 0.1 mag 4.80,6.30 Sp A3m dist. 29.59 pc (96.52 l.y.)
 
 
Coord 2000 22038+6438 Discov num MCA  69 Comp Aa,Ab Coord arcsec 2000 22 03 47.45 +64 37 40.7
Date first 1975 Date last 2020 Obs 55
Pa first 97 Pa last 102.1 P.A. Now (θ) 102.1°
Sep first 0.1 Sep last 0.065 Sep. Now (ρ) 0.065"
Mag pri 4.80 Mag sec 6.30 delta mag (ΔM) 1.5 Spectral class A3m (white)
Pri motion ra +215 Sec motion ra
Pri motion dec +089 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
22038+6438 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19827 22 03 47 +64 37 41 MCA 69 Aa,Ab 2020 55 102 0.1 4.80 6.30 1.50 Y <===
Show Kurhah 19827 22 03 47 +64 37 41 STF 2863 AB 2022 329 275 7.9 4.45 6.40 1.95 Y
Show 19827 22 03 47 +64 37 41 STF 2863 AC 2014 6 208 112.7 4.45 12.60 8.15
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Kurhah Constellation Cepheus SAO 19827 HIP 108917
Tycho2 4271-02620-1 Gaia DR2 2218144110659419264 HD 209790 HR 8417
GC 30877 ADS 15600 BD BD+63 1802 Bayer Xi Cephei
Bayer name Xi Cep Flamsteed 17 Cephei Flamsteed name 17 Cep Distance 29.59
Distance ly 96.52 Bayer greek ξ Cep
Other names Alkurhah, Alkirhad, Al Kirdah
Meaning glow, eyebrow horse
 
 
ORBITAL ELEMENTS
 
 
Period (P)2.2428y± 0.0044 Periastron (T)1991.2127y± 0.0437 Semi-major axis (a)0.07996a± 0.00564
Eccentricity (e)0.60333± 0.05273 Inclination (i)74.479°± 1.859 Longitude of periastron (ω)270.421°± 1.505
Node (Ω)88.341°± 1.083 Notesn ReferenceIzm2019
Equinox Last observation2012 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 266.4 0.055
2001 132.6 0.045
2002 252.9 0.065
2003 112.6 0.059
2004 238.4 0.055
2005 99.2 0.065
2006 214.4 0.041
2007 80.1 0.035
2008 173.7 0.034
2009 268.7 0.050
2010 135.9 0.043
2011 254.4 0.066
2012 114.5 0.057
2013 240.4 0.056
2014 100.7 0.065
2015 218.1 0.042
2016 84.3 0.043
2017 179.0 0.034
2018 271.5 0.045
2019 139.4 0.042
2020 255.9 0.066
2021 116.4 0.056
2022 242.4 0.058
2023 102.2 0.065
2024 221.5 0.044
2025 87.4 0.049
2026 184.3 0.034
2027 275.2 0.038
2028 143.2 0.040
2029 257.3 0.065
2030 118.5 0.054


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


 
  


wds22038%2B6438h.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 22038+6438 MCA 69 Aa,Ab : NOTES
 
 
discov_num notes refcode
MCA 69 xi Cep = 17 Cep = Kurhah
Aa,Ab is an astrometric binary and SB2, with elements by Vickers & Scf1976
Combined solution by Farrington et al. (2014) yields masses 1.045 +/-
0.032 and 0.409 +/- 0.066 Msun, as well as an orbital parallax 38.11
+/- 2.82 mas. CIA2014a
STF2863 Scarfe (1976). The McAlister (1980) orbit is from speckle McA1980a
xi Cep interferometry, and in good agreement with the spectroscopic result.
Mt. Wilson spectrum of B F8s. Spectrum of A: A3m.
Pourbaix gives combined solution for this resolved SB2, yielding Pbx2000b
orbital parallaxes and component masses.
STF2863 AB: H 2 16. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
CIA2014a Kf j Farrington, C.D., ten Brummelaar, T.A., Mason, B.D., Hartkopf, W.I., Mourard, D., 2014AJ....148...48F
CIA2014a +Kc Moravveji, E., McAlister, H.A., Turner, N.H., Sturmann, L., & Sturmann, J.
CIA2014a +orb AJ 148, 48, 2014
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
McA1980a orb - McAlister, H.A. 1980ApJ...236..522M
McA1980a ApJ 236, 522, 1980
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Pbx2000b orb - Pourbaix, D. 2000A&AS..145..215P
Pbx2000b A&AS 145, 215, 2000
Scf1976 - Vickers, C.R. & Scarfe, C.D. 1976PASP...88..944V
Scf1976 PASP 88, 944, 1976
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22038+6438 MCA 69 Aa,Ab 1999 34 78 0.1 4.80 6.30 A3m NOD 220347.16+643739.9
22038+6438 MCA 69 Aa,Ab 2012 49 233 0.1 4.80 6.30 A3m NO 220347.16+643739.9
22038+6438 MCA 69 Aa,Ab 2020 55 102 0.1 4.80 6.30 A3m NO 220347.45+643740.7

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

 
 
WDS 22038+6438 MCA 69 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22038+6438 MCA 69 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 22038+6438 : VIRTUAL EYEPIECE
 
 

22038+6438 STF2863A mag 4.45 Sp A3m 22038+6438 MCA 69Ab mag 6.3 22038+6438 STF2863B sep 3.4 P.A. 280.40 mag 6.4 22038+6438 STF2863C sep 102.2 P.A. 192.70 mag 12.6 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 22038+6438 : ALADIN DSS IMAGE @ 22h 03m 47.45s +64° 37' 40.7"
 
 
 
 
WDS 22038+6438 MCA 69 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22038+6438 MCA 69Aa,Ab (Kurhah) distance=0' 22022+6436 TDS1152 distance=11' 22005+6445 SMA 157 distance=24' 21597+6419 TDT3279 distance=33' 21587+6434 HJ 1713 distance=33' 21584+6432 TDT3266 distance=36' 22069+6405 WYL 1 distance=39' 22080+6405 HJ 1739 distance=43' 22092+6412 FOX 44 distance=44' 22093+6410 KPP3376 distance=46' 22094+6406 ES 213 distance=49' 21591+6400 HU 975AB distance=49' 21591+6400 STI1077AB,D distance=49' 21591+6400 HU 975AB,C distance=49' 21591+6358 TDT3275 distance=50' 21559+6441 STI1072 distance=51' 21587+6359 MLB 225 distance=51' 21584+6359 TDT3267 distance=52' 22028+6343 TDT3307 distance=56' 22066+6346 MLB 226AB distance=56' 22066+6346 MLB 226AC distance=56' 21554+6500 TVB 7 distance=59' 22067+6534 HDS3140 distance=60' 22048+6539 HU 977 distance=62' 22058+6539 NI 44 distance=63' 22052+6335 HDS3136 distance=64' 22121+6518 TDT3400 distance=67' 22079+6337 TDT3360 distance=67' 21555+6519 STT 457 distance=67' 22036+6331 HDS3130 distance=68' 21559+6525 STI1073 distance=69' 21569+6533 KPP4259 distance=71' 21531+6458 MLR 75 distance=72' 22038+6551 MLB 271 distance=72' 21535+6408 STI1069 distance=73' 22022+6550 MLB 309 distance=74' 21536+6405 TDT3218 distance=75' 21526+6458 TDT3214 distance=75' 21567+6338 WRH 36 distance=77' 22122+6344 STF2884 distance=77' 22119+6342 STI1097AB distance=77' 22119+6342 STI1097AC distance=77' 22055+6322 STI1089 distance=77' 21518+6453 STF2844 distance=79' 21561+6539 HU 974 distance=79' 22045+6319 TDT3324 distance=79' 22161+6449 MLR 76 distance=80' 21565+6334 STI1074 distance=80' 21520+6508 STI1066 distance=82' 21554+6540 HU 1314 distance=82' 22159+6413 MLR 58 distance=83' 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 Kurhah 22038+6438 MCA 69 Aa,Ab 102 0.1
Show Kurhah 22038+6438 STF2863 AB 275 7.9
Show Kurhah 22038+6438 STF2863 AC 208 112.7
Show 22022+6436 TDS1152 324 0.8 11
Show 22005+6445 SMA 157 82 20.5 24
Show 21597+6419 TDT3279 328 0.7 33
Show 21587+6434 HJ 1713 125 18.7 33
Show 21584+6432 TDT3266 280 1.6 36
Show 22069+6405 WYL 1 17 1.1 39
Show 22080+6405 HJ 1739 63 19.0 43
Show 22092+6412 FOX 44 308 3.3 44
Show 22093+6410 KPP3376 212 3.0 46
Show 22094+6406 ES 213 236 6.3 49
Show 21591+6400 HU 975 AB 210 0.3 49
Show 21591+6400 STI1077 AB,D 145 8.3 49
Show 21591+6400 HU 975 AB,C 135 1.9 49
Show 21591+6358 TDT3275 282 0.4 50
Show 21559+6441 STI1072 172 12.0 51
Show 21587+6359 MLB 225 258 7.1 51
Show 21584+6359 TDT3267 59 1.0 52
Show 22028+6343 TDT3307 335 1.3 56
Show 22066+6346 MLB 226 AB 113 3.8 56
Show 22066+6346 MLB 226 AC 154 135.0 56
Show 21554+6500 TVB 7 27 15.7 59
Show 22067+6534 HDS3140 4 0.1 60
Show 22048+6539 HU 977 313 0.3 62
Show 22058+6539 NI 44 138 6.8 63
Show 22052+6335 HDS3136 338 0.4 64
Show 22121+6518 TDT3400 104 0.6 67
Show 22079+6337 TDT3360 220 1.8 67
Show 21555+6519 STT 457 246 1.4 67
Show 22036+6331 HDS3130 54 0.4 68
Show 21559+6525 STI1073 222 11.1 69
Show 21569+6533 KPP4259 17 52.4 71
Show 21531+6458 MLR 75 141 1.0 72
Show 22038+6551 MLB 271 140 3.5 72
Show 21535+6408 STI1069 48 13.2 73
Show 22022+6550 MLB 309 151 5.3 74
Show 21536+6405 TDT3218 232 1.7 75
Show 21526+6458 TDT3214 9 1.0 75
Show 21567+6338 WRH 36 175 0.1 77
Show 22122+6344 STF2884 143 2.2 77
Show 22119+6342 STI1097 AB 324 6.9 77
Show 22119+6342 STI1097 AC 352 35.5 77
Show 22055+6322 STI1089 31 6.2 77
Show 21518+6453 STF2844 260 11.9 79
Show 21561+6539 HU 974 101 4.5 79
Show 22045+6319 TDT3324 94 0.4 79
Show 22161+6449 MLR 76 59 0.3 80
Show 21565+6334 STI1074 60 7.3 80
Show 21520+6508 STI1066 3 4.1 82

 
 
WDS 22038+6438 : COMPONENTS
 
 
  A Ab B
Ab pa=116.6°
sep=0.03"
 
B pa=280.4°
sep=3.42"
pa=280.5°
sep=3.45"
 
C pa=192.7°
sep=102.17"
pa=192.7°
sep=102.17"
pa=190.8°
sep=102.09"
 
 
22038+6438 A
 
 
Common name Kurhah Meaning glow, eyebrow horse Other names Alkurhah, Alkirhad, Al Kirdah Coord arcsec 2000 220347.45+643740.7
Mag 4.45 Spectral class A3m (white) PmRA 215.00 PmDE 89.0
SAO 19827 HIP 108917 Tycho2 4271-02620-1 HD 209790
HR 8417 GC 30877 BD BD+63 1802 Bayer Xi Cephei
Bayer name Xi Cep Flamsteed 17 Cephei Flamsteed name 17 Cep
Tycho2
Tycho2 4271-02620-1 Pflag RAmdeg 330.94771793 DEmdeg 64.62796997
PmRA 213.9 PmDE 88.6 E RAmdeg 4 E DEmdeg 3
E pmRA 1.5 E pmDE 1.7 EpRAm 1991.30 EpDEm 1991.71
Num 6 Q RAmdeg 3.0 Q DEmdeg 0.0 Q pmRA 2.9
Q pmDE 0.1 BTmag 4.813 E BTmag 0.014 VTmag 4.446
E VTmag 0.009 Prox 79 TYC T HIP 108917
CCDM A RAdeg 330.94652667 DEdeg 64.62776694 EpRA 1990 1.41
EpDE 1990 1.75 E RAdeg 3.5 E DEdeg 3.3 Posflg
Corr 0.0
SAO
SAO 19827 DelFlag RA1950 PmRA1950 0.032
DE1950 PmDE1950 0.089 Vmag 4.6 SpType A3
Double code Source 70 CatNum 30877 DM BD+63 1802
DMcomp A BDsup HD 209790 M HD 0
GC 30877 RA1950rad 5.76979962 DE1950rad 1.12370931 PmRA2000 0.0325
PmDE2000 0.085
Hipparcos
Catalog H HIP 108917 Proxy H RAhms 22 03 47.16
DEdms +64 37 39.9 Vmag 4.26 VarFlag R Vmag H
RAdeg 330.947 DEdeg 64.6278 AstroRef A Plx 32.07
CCDM 22038+6437 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 276 Rho 7.871 HD 209790 BD BD+63 1802
CD CP Dm number +63 1802 VIred 0.41
SpType Am R SpType Coord arcsec 2000 220347.16+643739.9
Hipparcos 2
HIP 108917 Sn 17 So 3 Nc 2
RArad 5.7761061942 DErad 1.1279671034 Plx 33.79 PmRA 215.46
PmDE 91.06 E RArad 0.93 E DErad 0.84 E Plx 1.06
E pmRA 1.14 E pmDE 0.97 Hpmag 4.352 E Hpmag 0.0008
SHp 0.009 VA 0 BV 0.379 E BV 0.004
VI 0.44
 
 
22038+6438 Ab
 
 
Coord arcsec 2000 220347.45+643740.7 Mag 6.3 Calc delta mag 1.5 Calc coord yes
 
 
22038+6438 B
 
 
Coord arcsec 2000 220346.93+643741.3 Mag 6.4 PmRA 202.00 PmDE 86.0
Calc delta mag 1.6 Calc coord yes
 
 
22038+6438 C
 
 
Coord arcsec 2000 220343.95+643601.0 Mag 12.6 Calc delta mag 7.8 Calc coord yes