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20248+4009
HO 278
HD 194558


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8' : 20254+4014
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TDT2186



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

20248+4009 HO 278 (HD 194558)

 
 
20h 24m 48.79s +40° 09' 13.0" P.A. 70.00 sep 0.1 mag 7.50,7.50 Sp K3III dist. 201.61 pc (657.65 l.y.)
 
 
Coord 2000 20248+4009 Discov num HO  278 Comp Coord arcsec 2000 20 24 48.79 +40 09 13.0
Date first 1886 Date last 1953 Obs 7
Pa first 173 Pa last 70 P.A. Now (θ) 70°
Sep first 0.3 Sep last 0.1 Sep. Now (ρ) 0.1"
Mag pri 7.50 Mag sec 7.50 delta mag (ΔM) 0 Spectral class K3III (yellow-orange)
Pri motion ra +009 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194558 Constellation Cygnus SAO 69986 HIP 100691
Tycho2 3156-02224-1 Gaia DR2 2067477207669515136 HD 194558 GC 28406
ADS 13833 BD BD+39 4172 Distance 201.61 Distance ly 657.65
 
 
WDS 20248+4009 HO 278 (HD 194558) : NOTES
 
 
discov_num notes refcode
HO 278 BD+39 4172. Pair was first taken to be a new pair, as Hough (hence
Burnham in BDS) identified discovery as BD+39 4186, a star of about
the same mag about 1m f and 15' n of double. The doubtless accounts
for Doolittle's failure to secure measures in 1905. A__1914d
 
 
REFERENCES
 
 
refcode metd author reference
A__1914d Ma j Aitken, R.G. 1914PLicO..12....1A
A__1914d +orb Pub. Lick Obs. 12, 1, 1914
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20248+4009 HO 278 1953 8 70 0.1 7.50 7.50 K3III 202448.79+400913.0

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

 
 
WDS 20248+4009 HO 278 (HD 194558) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20248+4009 HO 278 (HD 194558) : MEASURES
 
 
No records found.

 
 
WDS 20248+4009 (HD 194558) : VIRTUAL EYEPIECE
 
 

20248+4009 HO 278A mag 7.5 Sp K3III 20248+4009 HO 278B sep 0.1 P.A. 64.50 mag 7.5 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20248+4009 (HD 194558) : ALADIN DSS IMAGE @ 20h 24m 48.79s +40° 09' 13.0"
 
 
 
 
WDS 20248+4009 HO 278 (HD 194558) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20248+4009 HO 278 distance=0' 20254+4014 MLR 1 distance=8' 20253+4003 MLB 22 distance=8' 20244+4002 MLB 21 distance=9' 20255+4006 D 22AB distance=9' 20255+4006 D 22AC distance=9' 20255+4006 POP 224AD distance=9' 20257+4004 TOR 25AB distance=12' 20257+4004 POP 199AC distance=12' 20259+4019 ALI1142 distance=16' 20264+4029 MLB1087 distance=27' 20222+4015 BU 665A,BC (Sadr) distance=31' 20222+4015 BU 665BC,D distance=31' 20222+4015 BU 665BC distance=31' 20251+4042 TDT2253 distance=34' 20231+4037 TDT2228 distance=34' 20272+3949 ES 1976 distance=35' 20237+3937 ALI1141 distance=35' 20272+3948 SEI1127 distance=35' 20280+3958 TDT2299 distance=39' 20283+4005 COU2538 distance=41' 20232+4046 ES 1677 distance=42' 20231+4047 J 787CD distance=43' 20215+3950 SEI1103 distance=43' 20231+4047 J 787AB distance=43' 20231+4047 J 787AC distance=43' 20231+4047 J 787AD distance=43' 20231+4048 GRF 15 distance=44' 20278+4036 TDT2294 distance=44' 20221+4042 ES 1676 distance=46' 20263+3925 ES 1975 distance=47' 20232+4052 CIA 46 distance=48' 20283+4038 TDT2306 distance=49' 20277+3932 TDT2292 distance=50' 20296+4021 STN 50 distance=52' 20204+4021 TDT2186 distance=52' 20207+4031 TDT2193 distance=52' 20203+3958 BRT2260 distance=53' 20294+4011 ALV 6 distance=53' 20210+4041 TDT2199 distance=54' 20235+3918 SEI1111 distance=54' 20259+3914 SEI1122 distance=57' 20199+4000 MLB1015 distance=58' 20241+3912 SEI1115 distance=58' 20239+3912 J 129 distance=58' 20198+3958 MLB1014 distance=59' 20299+4022 HJ 1525AB distance=60' 20299+4022 HJ 1525AC distance=60' 20230+3913 STTA206AB distance=61' 20230+3913 STTA206AD distance=61' 20209+3928 HO 127 distance=61' 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 20248+4009 HO 278 70 0.1
Show 20254+4014 MLR 1 213 0.4 8
Show 20253+4003 MLB 22 227 6.2 8
Show 20244+4002 MLB 21 15 8.8 9
Show 20255+4006 D 22 AB 163 2.9 9
Show 20255+4006 D 22 AC 114 18.1 9
Show 20255+4006 POP 224 AD 98 71.2 9
Show 20257+4004 TOR 25 AB 191 4.7 12
Show 20257+4004 POP 199 AC 245 59.6 12
Show 20259+4019 ALI1142 56 12.1 16
Show 20264+4029 MLB1087 98 9.5 27
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 31
Show 20222+4015 BU 665 BC,D 131 41.0 31
Show 20222+4015 BU 665 BC 302 1.9 31
Show 20251+4042 TDT2253 239 2.4 34
Show 20231+4037 TDT2228 242 0.4 34
Show 20272+3949 ES 1976 79 3.8 35
Show 20237+3937 ALI1141 21 11.5 35
Show 20272+3948 SEI1127 116 26.3 35
Show 20280+3958 TDT2299 8 0.5 39
Show 20283+4005 COU2538 31 1.0 41
Show 20232+4046 ES 1677 270 7.4 42
Show 20231+4047 J 787 CD 292 25.3 43
Show 20215+3950 SEI1103 223 17.0 43
Show 20231+4047 J 787 AB 165 2.6 43
Show 20231+4047 J 787 AC 112 9.5 43
Show 20231+4047 J 787 AD 293 15.8 43
Show 20231+4048 GRF 15 139 199.3 44
Show 20278+4036 TDT2294 310 2.2 44
Show 20221+4042 ES 1676 285 2.4 46
Show 20263+3925 ES 1975 26 4.1 47
Show 20232+4052 CIA 46 14 0.0 48
Show 20283+4038 TDT2306 156 1.1 49
Show 20277+3932 TDT2292 167 0.5 50
Show 20296+4021 STN 50 170 6.3 52
Show 20204+4021 TDT2186 349 0.5 52
Show 20207+4031 TDT2193 288 1.2 52
Show 20203+3958 BRT2260 9 3.2 53
Show 20294+4011 ALV 6 259 0.6 53
Show 20210+4041 TDT2199 122 0.8 54
Show 20235+3918 SEI1111 10 25.3 54
Show 20259+3914 SEI1122 271 27.6 57
Show 20199+4000 MLB1015 89 4.0 58
Show 20241+3912 SEI1115 181 23.6 58
Show 20239+3912 J 129 35 3.3 58
Show 20198+3958 MLB1014 241 7.6 59
Show 20299+4022 HJ 1525 AB 234 9.2 60
Show 20299+4022 HJ 1525 AC 39 17.1 60
Show 20230+3913 STTA206 AB 254 43.7 61
Show 20230+3913 STTA206 AD 259 24.5 61
Show 20209+3928 HO 127 94 1.9 61

 
 
WDS 20248+4009 : COMPONENTS
 
 
  A
B pa=64.5°
sep=0.08"
 
 
20248+4009 A
 
 
Componente originario normalizzato AB Name HD 194558 Coord arcsec 2000 202448.79+400913.0 Mag 7.5
Spectral class K3III (yellow-orange) PmRA 9.00 PmDE 2.0 SAO 69986
HIP 100691 Tycho2 3156-02224-1 HD 194558 GC 28406
ADS 13833 BD BD+39 4172
Tycho2
Tycho2 3156-02224-1 Pflag RAmdeg 306.20332507 DEmdeg 40.15361202
PmRA 5.5 PmDE 4.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.42 EpDEm 1991.42
Num 11 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 1.0 BTmag 8.364 E BTmag 0.016 VTmag 6.875
E VTmag 0.010 Prox 999 TYC T HIP 100691
CCDM RAdeg 306.20330833 DEdeg 40.15360167 EpRA 1990 1.65
EpDE 1990 1.62 E RAdeg 4.3 E DEdeg 4.3 Posflg
Corr 0.1
SAO
SAO 69986 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 0.004 Vmag 6.9 SpType K0
Double code Source 70 CatNum 28406 DM BD+39 4172
DMcomp BDsup HD 194558 M HD 0
GC 28406 RA1950rad 5.33637892 DE1950rad 0.6979561 PmRA2000 0.0011
PmDE2000 0.002
Hipparcos
Catalog H HIP 100691 Proxy RAhms 20 24 48.79
DEdms +40 09 13.0 Vmag 6.73 VarFlag R Vmag H
RAdeg 306.203 DEdeg 40.1536 AstroRef Plx 5
CCDM 20248+4009 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 194558 BD BD+39 4172
CD CP Dm number +39 4172 VIred 1.2
SpType K2III R SpType Coord arcsec 2000 202448.79+400913.0
Hipparcos 2
HIP 100691 Sn 5 So 0 Nc 1
RArad 5.3442558496 DErad 0.7008125763 Plx 4.96 PmRA 5.23
PmDE 5.64 E RArad 0.31 E DErad 0.29 E Plx 0.39
E pmRA 0.34 E pmDE 0.32 Hpmag 6.8933 E Hpmag 0.0006
SHp 0.009 VA 0 BV 1.263 E BV 0.009
VI 1.22
CCDM
Ccdm 20248+4009 RComp Comp A Note1
Note2 Discov num DRAs 0.77 DDEs 12.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.6 Sp K0 PmNote *
PmRA 4 PmDE -5 Dm number +39 4172 Cat1 BD
Name2 +39 2123 Cat2 AGK2/3 HD 194558 M HD
ADS BDS A13833 M ADS BDS N IDS IDS 20212N3950A
HIC 100691
 
 
20248+4009 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202448.80+400913.0 Mag 7.5 Calc coord yes
CCDM
Ccdm 20248+4009 RComp Comp B Note1
Note2 Discov num HO 278 DRAs DDEs
R dRAs Year 1953 Theta 070 Rho 0.1
Obs 10 Vmag 7.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13833 M ADS BDS N N IDS IDS 20212N3950B
HIC 100691