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Doubles in session


Current system
20250+3034
HDS 2921
HD 194525


Nearby doubles
4' : 20248+3033
ES 363

15' : 20257+3022
COU1324

26' : 20231+3036
ES 362AB

29' : 20234+3053
ARG 91

35' : 20234+3007
J 1772

38' : 20242+2958
FMR 87AB

39' : 20279+3047
RAO 520

43' : 20282+3024
HJ 1517

45' : 20219+3017
TDT2209

45' : 20225+3004
TDT2216

46' : 20215+3035
ARY 4AB

47' : 20280+3008
BU 62AB

47' : 20245+3120
TDT2244

47' : 20265+3117
TDT2272

48' : 20222+3105
TDT2211

49' : 20213+3035
WJD 1

51' : 20223+3110
BRT1954

52' : 20284+3007
OL 75

54' : 20269+3121
TDT2280

56' : 20222+3115
A 1208

57' : 20222+3118
RAO 430

59' : 20217+3112
BRT 279

59' : 20294+3048
HJ 1521

60' : 20211+3104
TDT2200

60' : 20223+2946
TDT2213

62' : 20240+2935
TDT2237



Selections
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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.

20250+3034 HDS 2921 (HD 194525)

 
 
20h 25m 02.55s +30° 34' 05.4" P.A. 358.00 sep 0.8 mag 8.10,11.04 Sp G2Ib-II dist. 400 pc (1304.8 l.y.)
 
 
Coord 2000 20250+3034 Discov num HDS2921 Comp Coord arcsec 2000 20 25 02.55 +30 34 05.4
Date first 1991 Date last 2010 Obs 4
Pa first 356 Pa last 358.3 P.A. Now (θ) 358.3°
Sep first 0.8 Sep last 0.823 Sep. Now (ρ) 0.823"
Mag pri 8.10 Mag sec 11.04 delta mag (ΔM) 2.94 Spectral class G2Ib-II (yellow)
Pri motion ra +007 Sec motion ra +004
Pri motion dec -007 Sec motion dec -006
Notes
rPM=0.319
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194525 Constellation Cygnus SAO 69987 HIP 100708
Tycho2 2685-01750-1 Gaia DR2 1861753011539519488 HD 194525 BD BD+30 4023
Distance 400 Distance ly 1304.8
 
 
WDS 20250+3034 HDS 2921 (HD 194525) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20250+3034 HDS2921 1991 2 356 0.8 8.10 11.04 G2Ib-II D 202502.55+303405.4
20250+3034 HDS2921 2009 3 356 0.8 8.10 11.04 G2Ib-II D 202502.55+303405.4
20250+3034 HDS2921 2010 4 358 0.8 8.10 11.04 G2Ib-II 202502.55+303405.4

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

 
 
WDS 20250+3034 HDS 2921 (HD 194525) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20250+3034 HDS 2921 (HD 194525) : MEASURES
 
 
No records found.

 
 
WDS 20250+3034 (HD 194525) : VIRTUAL EYEPIECE
 
 

20250+3034 HDS2921A mag 8.1 Sp G2Ib 20250+3034 HDS2921B sep 0.8 P.A. 358.50 mag 11.04 Sp II virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20250+3034 (HD 194525) : ALADIN DSS IMAGE @ 20h 25m 02.55s +30° 34' 05.4"
 
 
 
 
WDS 20250+3034 HDS 2921 (HD 194525) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20250+3034 HDS2921 distance=0' 20248+3033 ES 363 distance=4' 20257+3022 COU1324 distance=15' 20231+3036 ES 362AB distance=26' 20231+3036 ES 362BC distance=26' 20234+3053 ARG 91 distance=29' 20234+3007 J 1772 distance=35' 20242+2958 HDS2916Aa,Ab distance=38' 20242+2958 FMR 87AB distance=38' 20242+2958 FMR 87AC distance=38' 20279+3047 RAO 520 distance=39' 20282+3024 HJ 1517 distance=43' 20219+3017 TDT2209 distance=45' 20225+3004 TDT2216 distance=45' 20215+3035 ARY 4AB distance=46' 20280+3008 BU 62AB distance=47' 20280+3008 BU 62AC distance=47' 20280+3008 BU 62AD distance=47' 20245+3120 TDT2244 distance=47' 20265+3117 TDT2272 distance=47' 20222+3105 TDT2211 distance=48' 20215+3035 BU 1259Ba,Bb distance=49' 20215+3035 BU 1259BC distance=49' 20213+3035 WJD 1 distance=49' 20223+3110 BRT1954 distance=51' 20284+3007 OL 75 distance=52' 20269+3121 TDT2280 distance=54' 20222+3115 A 1208 distance=56' 20222+3118 RAO 430 distance=57' 20217+3112 BRT 279 distance=59' 20294+3048 HJ 1521 distance=59' 20211+3104 TDT2200 distance=60' 20223+2946 TDT2213 distance=60' 20240+2935 TDT2237 distance=62' 20286+3118 COU1325 distance=64' 20282+3124 ES 2435 distance=64' 20291+2956 AG 406 distance=65' 20300+3029 STJ 59 distance=65' 20280+3128 TDS1074 distance=66' 20251+3141 ES 2434 distance=67' 20227+2930 TDT2218 distance=71' 20244+2923 HO 457AB distance=72' 20244+2923 HO 457AC distance=72' 20306+3029 ES 505 distance=73' 20275+3145 ES 364 distance=78' 20196+2956 A 1207 distance=81' 20299+3129 TDT2323 distance=84' 20262+3157 KPP3419 distance=84' 20251+3159 ES 2433 distance=85' 20188+3102 HDS2902 distance=86' 20287+2924 MLB 532 distance=86' 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 20250+3034 HDS2921 358 0.8
Show 20248+3033 ES 363 277 3.1 4
Show 20257+3022 COU1324 202 3.0 15
Show 20231+3036 ES 362 AB 232 10.8 26
Show 20231+3036 ES 362 BC 270 5.1 26
Show 20234+3053 ARG 91 175 20.8 29
Show 20234+3007 J 1772 98 2.4 35
Show 20242+2958 HDS2916 Aa,Ab 223 0.2 38
Show 20242+2958 FMR 87 AB 50 1.4 38
Show 20242+2958 FMR 87 AC 117 7.8 38
Show 20279+3047 RAO 520 -1 0.2 39
Show 20282+3024 HJ 1517 105 13.1 43
Show 20219+3017 TDT2209 51 1.7 45
Show 20225+3004 TDT2216 133 0.5 45
Show 20215+3035 ARY 4 AB 287 134.9 46
Show 20280+3008 BU 62 AB 133 1.2 47
Show 20280+3008 BU 62 AC 179 38.2 47
Show 20280+3008 BU 62 AD 267 46.1 47
Show 20245+3120 TDT2244 281 0.4 47
Show 20265+3117 TDT2272 352 2.3 47
Show 20222+3105 TDT2211 354 2.4 48
Show 20215+3035 BU 1259 Ba,Bb 191 0.2 49
Show 20215+3035 BU 1259 BC 356 10.3 49
Show 20213+3035 WJD 1 262 8.8 49
Show 20223+3110 BRT1954 278 4.8 51
Show 20284+3007 OL 75 136 1.8 52
Show 20269+3121 TDT2280 334 0.5 54
Show 20222+3115 A 1208 161 0.2 56
Show 20222+3118 RAO 430 289 2.6 57
Show 20217+3112 BRT 279 125 3.8 59
Show 20294+3048 HJ 1521 194 15.4 59
Show 20211+3104 TDT2200 55 1.2 60
Show 20223+2946 TDT2213 229 1.0 60
Show 20240+2935 TDT2237 155 0.8 62
Show 20286+3118 COU1325 222 0.2 64
Show 20282+3124 ES 2435 241 3.4 64
Show 20291+2956 AG 406 333 8.5 65
Show 20300+3029 STJ 59 219 1.4 65
Show 20280+3128 TDS1074 334 1.5 66
Show 20251+3141 ES 2434 287 4.3 67
Show 20227+2930 TDT2218 292 0.4 71
Show 20244+2923 HO 457 AB 61 2.0 72
Show 20244+2923 HO 457 AC 268 28.0 72
Show 20306+3029 ES 505 15 2.1 73
Show 20275+3145 ES 364 279 7.3 78
Show 20196+2956 A 1207 351 0.6 81
Show 20299+3129 TDT2323 44 0.6 84
Show 20262+3157 KPP3419 60 17.1 84
Show 20251+3159 ES 2433 267 8.6 85
Show 20188+3102 HDS2902 296 1.7 86
Show 20287+2924 MLB 532 351 8.9 86

 
 
WDS 20250+3034 : COMPONENTS
 
 
  A
B pa=358.5°
sep=0.82"
 
 
20250+3034 A
 
 
Componente originario normalizzato AB Name HD 194525 Coord arcsec 2000 202502.55+303405.4 Mag 8.1
Spectral class G2Ib (yellow) PmRA 7.00 PmDE -7.0 SAO 69987
HIP 100708 Tycho2 2685-01750-1 HD 194525 BD BD+30 4023
Tycho2
Tycho2 2685-01750-1 Pflag RAmdeg 306.26061487 DEmdeg 30.56815500
PmRA 7.2 PmDE -6.9 E RAmdeg 6 E DEmdeg 5
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.13 EpDEm 1991.40
Num 9 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.8 BTmag 9.000 E BTmag 0.016 VTmag 8.095
E VTmag 0.011 Prox 8 TYC T HIP 100708
CCDM A RAdeg 306.26059528 DEdeg 30.56817083 EpRA 1990 1.54
EpDE 1990 1.72 E RAdeg 5.6 E DEdeg 5.0 Posflg P
Corr 0.2
SAO
SAO 69987 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 -0.008 Vmag 7.9 SpType G5
Double code Source 34 CatNum 11273 DM BD+30 4023
DMcomp BDsup HD 194525 M HD 0
GC RA1950rad 5.3363847 DE1950rad 0.53065993 PmRA2000 0.0005
PmDE2000 -0.011
Hipparcos
Catalog H HIP 100708 Proxy H RAhms 20 25 02.54
DEdms +30 34 05.4 Vmag 7.94 VarFlag R Vmag G
RAdeg 306.261 DEdeg 30.5682 AstroRef A Plx 1.73
CCDM 20250+3034 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 356 Rho 0.815 HD 194525 BD BD+30 4023
CD CP Dm number +30 4023 VIred 0.83
SpType G2Ib-II R SpType Coord arcsec 2000 202502.54+303405.4
Hipparcos 2
HIP 100708 Sn 15 So 3 Nc 2
RArad 5.3452557278 DErad 0.5335151671 Plx 2.5 PmRA 3.16
PmDE -5.63 E RArad 0.4 E DErad 0.58 E Plx 0.8
E pmRA 0.49 E pmDE 0.62 Hpmag 8.1312 E Hpmag 0.0011
SHp 0.015 VA 0 BV 0.8 E BV 0.015
VI 0.83
CCDM
Ccdm 20250+3034 RComp Comp A Note1
Note2 Discov num DRAs 2.54 DDEs 5.3
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.2 Sp G2 PmNote *
PmRA 3 PmDE -6 Dm number +30 4023 Cat1 BD
Name2 +30 2124 Cat2 AGK2/3 HD 194525 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100708
 
 
20250+3034 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202502.55+303406.2 Mag 11.04 Spectral class II
PmRA 4.00 PmDE -6.0 Calc delta mag 2.94 Calc coord yes
CCDM
Ccdm 20250+3034 RComp Comp B Note1
Note2 Discov num HDS DRAs 2.54 DDEs 6.2
R dRAs 82 Year 1991 Theta 356 Rho 0.8
Obs 1 Vmag 11.3 Sp PmNote *
PmRA 3 PmDE -6 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100708