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Doubles in session


Current system
20280-0009
HJ 916 AB
HD 194844


Nearby doubles
16' : 20289-0016
RST5156

34' : 20300+0023
JNN 283

39' : 20258+0029
TDT2266

40' : 20269+0045
CVR 224

44' : 20260-0041
A 728

44' : 20283+0052
FSM 2

52' : 20313+0020
BAL 923

57' : 20275+0107
J 560

60' : 20258+0058
SKF 927

63' : 20322+0012
GWP2965

74' : 20291-0102
TOB 311

75' : 20246+0104
STF2677AB

76' : 20290-0105
BAL 612

77' : 20323+0049
UC 4207

79' : 20263-0106
J 2311

80' : 20227+0014
GAU 17

82' : 20236-0055
RST5155

85' : 20293+0132
BAL1561

88' : 20291+0135
GWP2956AB

92' : 20281+0140
BAL1560

93' : 20253+0133
BAL1556

96' : 20266+0143
BAL1558

98' : 20329+0113
BAL1216

98' : 20222-0054
UC 4160

98' : 20344-0029
STF2697

99' : 20237-0104
HDS2913



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.

20280-0009 HJ 916 AB (HD 194844)

 
 
20h 28m 00.09s -00° 09' 04.9" P.A. 260.00 sep 14.8 mag 9.05,10.99 Sp K5 dist. 265.25 pc (865.25 l.y.)
 
 
Coord 2000 20280-0009 Discov num HJ  916 Comp AB Coord arcsec 2000 20 28 00.09 -00 09 04.9
Date first 1827 Date last 2015 Obs 14
Pa first 250 Pa last 260 P.A. Now (θ) 260°
Sep first 9.0 Sep last 14.793 Sep. Now (ρ) 14.793"
Mag pri 9.05 Mag sec 10.99 delta mag (ΔM) 1.94 Spectral class K5 (yellow-orange)
Pri motion ra +005 Sec motion ra +005
Pri motion dec -007 Sec motion dec -048
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.85
This double is not physical.
 
 
20280-0009 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 194844 144459 20 28 00 -00 09 05 HJ 916 AB 2015 14 260 14.8 9.05 10.99 1.94 <===
Show 20 27 59 -00 09 08 SHY 333 BC 2000 4 149 999.9 10.99 7.84 3.15
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194844 Constellation Aquila SAO 144459 HIP 100943
Tycho2 5163-00491-1 HD 194844 BD BD-00 4010 Distance 265.25
Distance ly 865.25
 
 
WDS 20280-0009 HJ 916 AB (HD 194844) : NOTES
 
 
discov_num notes refcode
SHY 333 BC: HIP 100940 + HIP 101852.
 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20280-0009 HJ 916 AB 1998 8 259 15.0 9.05 10.99 K5 D 202800.09-000904.9
20280-0009 HJ 916 AB 2000 9 259 15.1 9.05 10.99 K5 N D 202800.09-000904.9
20280-0009 HJ 916 AB 2010 13 260 13.8 9.05 10.99 K5 NU 202800.09-000904.9
20280-0009 HJ 916 AB 2015 12 260 14.8 9.05 10.99 K5 NU 202800.09-000904.9

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

 
 
WDS 20280-0009 HJ 916 AB (HD 194844) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20280-0009 HJ 916 AB (HD 194844) : MEASURES
 
 
No records found.

 
 
WDS 20280-0009 (HD 194844) : VIRTUAL EYEPIECE
 
 

20280-0009 HJ 916A mag 9.05 Sp K5 20280-0009 SHY 333B sep 15.1 P.A. 280.30 mag 10.99 20280-0009 SHY 333C sep 9989.5 P.A. 149.40 mag 7.84 Sp G0 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 20280-0009 (HD 194844) : ALADIN DSS IMAGE @ 20h 28m 00.09s -00° 09' 04.9"
 
 
 
 
WDS 20280-0009 HJ 916 AB (HD 194844) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20280-0009 HJ 916AB distance=0' 20280-0009 SHY 333BC distance=1' 20289-0016 RST5156 distance=16' 20300+0023 JNN 283 distance=34' 20258+0029 TDT2266 distance=39' 20269+0045 CVR 224 distance=40' 20260-0041 A 728 distance=44' 20283+0052 FSM 2 distance=44' 20313+0020 BAL 923 distance=52' 20275+0107 J 560 distance=57' 20258+0058 SKF 927 distance=60' 20322+0012 GWP2965 distance=63' 20291-0102 TOB 311 distance=74' 20246+0104 STF2677AB distance=75' 20246+0104 STF2677AC distance=75' 20290-0105 BAL 612 distance=76' 20323+0049 UC 4207 distance=77' 20263-0106 J 2311 distance=79' 20227+0014 GAU 17 distance=80' 20236-0055 RST5155 distance=82' 20293+0132 BAL1561 distance=85' 20291+0135 GWP2956AB distance=88' 20291+0135 GWP2957AC distance=88' 20281+0140 BAL1560 distance=92' 20253+0133 BAL1556 distance=93' 20266+0143 BAL1558 distance=96' 20329+0113 BAL1216 distance=98' 20222-0054 UC 4160 distance=98' 20344-0029 STF2697 distance=98' 20237-0104 HDS2913 distance=99' 20342-0045 BAL 613 distance=100' 20215+0034 A 2280 distance=101' 20216-0048 HJ 914 distance=104' 20310-0126 UC 4204 distance=106' 20210+0006 SKF 926 distance=106' 20350+0033 J 1399 distance=107' 20227+0119 BAL1555 distance=108' 20267+0155 J 155AB distance=108' 20352+0019 RST5157 distance=109' 20210+0036 UC 4154 distance=109' 20267+0155 J 155BC distance=109' 20263+0156 BAL1557 distance=110' 20302+0156 BAL1562 distance=112' 20354-0057 BAL 614 distance=121' 20196-0013 UC 4145 distance=127' 20258-0154 HJ 2960 distance=128' 20310+0211 J 561 distance=130' 20228+0156 TDT2221 distance=133' 20204+0118 J 555 distance=134' 20204+0119 UC 4151 distance=135' 20197-0056 BAL 610 distance=135' 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 20280-0009 HJ 916 AB 260 14.8
Show 20280-0009 SHY 333 BC 149 999.9 1
Show 20289-0016 RST5156 329 1.2 16
Show 20300+0023 JNN 283 354 0.4 34
Show 20258+0029 TDT2266 270 1.7 39
Show 20269+0045 CVR 224 217 35.6 40
Show 20260-0041 A 728 348 0.3 44
Show 20283+0052 FSM 2 118 0.0 44
Show 20313+0020 BAL 923 146 3.5 52
Show 20275+0107 J 560 188 4.2 57
Show 20258+0058 SKF 927 230 65.9 60
Show 20322+0012 GWP2965 69 27.8 63
Show 20291-0102 TOB 311 110 23.2 74
Show 20246+0104 STF2677 AB 30 31.2 75
Show 20246+0104 STF2677 AC 13 16.2 75
Show 20290-0105 BAL 612 238 8.5 76
Show 20323+0049 UC 4207 297 31.1 77
Show 20263-0106 J 2311 99 6.0 79
Show 20227+0014 GAU 17 95 7.1 80
Show 20236-0055 RST5155 191 1.1 82
Show 20293+0132 BAL1561 8 15.8 85
Show 20291+0135 GWP2956 AB 250 16.5 88
Show 20291+0135 GWP2957 AC 258 172.4 88
Show 20281+0140 BAL1560 3 6.6 92
Show 20253+0133 BAL1556 22 6.6 93
Show 20266+0143 BAL1558 9 18.3 96
Show 20329+0113 BAL1216 157 15.1 98
Show 20222-0054 UC 4160 4 58.8 98
Show 20344-0029 STF2697 358 29.8 98
Show 20237-0104 HDS2913 1 0.6 99
Show 20342-0045 BAL 613 145 6.4 100
Show 20215+0034 A 2280 31 0.3 101
Show 20216-0048 HJ 914 164 18.7 104
Show 20310-0126 UC 4204 179 49.4 106
Show 20210+0006 SKF 926 260 56.7 106
Show 20350+0033 J 1399 276 2.2 107
Show 20227+0119 BAL1555 140 16.6 108
Show 20267+0155 J 155 AB 348 53.1 108
Show 20352+0019 RST5157 293 1.8 109
Show 20210+0036 UC 4154 80 10.4 109
Show 20267+0155 J 155 BC 164 3.3 109
Show 20263+0156 BAL1557 211 6.4 110
Show 20302+0156 BAL1562 308 9.0 112
Show 20354-0057 BAL 614 80 18.2 121
Show 20196-0013 UC 4145 183 38.5 127
Show 20258-0154 HJ 2960 232 13.2 128
Show 20310+0211 J 561 176 4.3 130
Show 20228+0156 TDT2221 260 0.7 133
Show 20204+0118 J 555 274 2.5 134
Show 20204+0119 UC 4151 95 33.2 135
Show 20197-0056 BAL 610 85 11.3 135

 
 
WDS 20280-0009 : COMPONENTS
 
 
  A B
B pa=280.3°
sep=15.09"
 
C pa=149.4°
sep=9989.49"
pa=149.3°
sep=9999.38"
 
 
20280-0009 A
 
 
Name HD 194844 Coord arcsec 2000 202800.09-000904.9 Mag 9.05 Spectral class K5 (yellow-orange)
PmRA 5.00 PmDE -7.0 SAO 144459 HIP 100943
Tycho2 5163-00491-1 HD 194844 BD BD-00 4010
Tycho2
Tycho2 5163-00491-1 Pflag RAmdeg 307.00038928 DEmdeg -0.15137113
PmRA 5.1 PmDE -6.3 E RAmdeg 13 E DEmdeg 17
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.51 EpDEm 1989.45
Num 3 Q RAmdeg 0.7 Q DEmdeg 1.3 Q pmRA 0.7
Q pmDE 1.3 BTmag 10.861 E BTmag 0.053 VTmag 9.051
E VTmag 0.019 Prox 176 TYC T HIP 100943
CCDM A RAdeg 307.00037694 DEdeg -0.15135583 EpRA 1990 1.54
EpDE 1990 1.28 E RAdeg 13.1 E DEdeg 16.5 Posflg
Corr -0.2
SAO
SAO 144459 DelFlag RA1950 PmRA1950 -0.0013
DE1950 PmDE1950 -0.006 Vmag 8.5 SpType K5
Double code Source 31 CatNum 5173 DM BD-00 4010
DMcomp BDsup HD 194844 M HD 0
GC RA1950rad 5.34696506 DE1950rad -0.00554428 PmRA2000 -0.0011
PmDE2000 -0.009
Hipparcos
Catalog H HIP 100943 Proxy RAhms 20 28 00.09
DEdms -00 09 04.9 Vmag 9.05 VarFlag R Vmag G
RAdeg 307 DEdeg -0.151355 AstroRef A Plx 1.16
CCDM 20280-0009 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual C M HIP
Theta Rho HD 194844 BD BD-00 4010
CD CP Dm number -00 4010 VIred 1.62
SpType K5 R SpType Coord arcsec 2000 202800.09-000904.9
Hipparcos 2
HIP 100943 Sn 95 So 3 Nc 1
RArad 5.3581674465 DErad -0.0026416275 Plx 3.77 PmRA 1.3
PmDE -7.52 E RArad 2.43 E DErad 2.24 E Plx 2.69
E pmRA 3.38 E pmDE 3.12 Hpmag 9.0949 E Hpmag 0.0386
SHp 0.028 VA 0 BV 1.611 E BV 0.218
VI 1.62
CCDM
Ccdm 20280-0009 RComp Comp A Note1
Note2 Discov num DRAs 0.09 DDEs -4.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp K5 PmNote *
PmRA 5 PmDE 6 Dm number -00 4010 Cat1 BD
Name2 -00 2640 Cat2 AGK2/3 HD 194844 M HD
ADS BDS B10227 M ADS BDS N IDS IDS 20229S0029A
HIC 100943
 
 
20280-0009 B
 
 
Coord arcsec 2000 202759.10-000907.6 Coord calc 202759.10-000907.6 Mag 10.99 PmRA 5.00
PmDE -48.0 HIP 100940 Calc delta mag 1.94
Hipparcos
Catalog H HIP 100940 Proxy RAhms 20 27 58.92
DEdms -00 09 05.2 Vmag 10.75 VarFlag R Vmag H
RAdeg 306.995 DEdeg -0.151438 AstroRef B Plx 1.16
CCDM 20280-0009 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source L Qual C M HIP
Theta Rho HD BD
CD CP Dm number VIred 0.72
SpType R SpType Coord arcsec 2000 202758.92-000905.2
Hipparcos 2
HIP 100940 Sn 95 So 3 Nc 1
RArad 5.3580822096 DErad -0.0026432289 Plx 24.86 PmRA -5.54
PmDE -7.52 E RArad 12.55 E DErad 10.52 E Plx 14.08
E pmRA 16.32 E pmDE 13.97 Hpmag 10.9902 E Hpmag 0.2007
SHp 0 VA 0 BV 0 E BV 0
VI 0
CCDM
Ccdm 20280-0009 RComp Comp B Note1
Note2 Discov num HJ 916 DRAs DDEs
R dRAs Year 1879 Theta 256 Rho 17.2
Obs 4 Vmag 11.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10227 M ADS BDS N IDS IDS 20229S0029B
HIC 100940
 
 
20280-0009 C
 
 
Coord arcsec 2000 203339.46-021410.9 Mag 7.84 Spectral class G0 (yellow) PmRA -7.00
PmDE -3.0 Calc delta mag 1.21 Calc coord yes