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Doubles in session


Current system
18204-1011
HER 2
FK Ser


Nearby doubles
36' : 18201-0936
MOC 14AB

44' : 18181-0943
RST4584

49' : 18188-0929
RST4585

51' : 18174-0946
HDS2584

55' : 18189-1101
HU 60

55' : 18198-0917
SHN 230

59' : 18214-0915
BWE 1

62' : 18181-0920
TDT 782

66' : 18160-1006
HU 58

75' : 18181-1118
SNA 86

86' : 18202-1137
BRT2751

88' : 18161-1111
HDS2579

88' : 18207-1138
SKF2802

90' : 18218-1139
HU 62

97' : 18234-1137
BVD 126

105' : 18146-1113
HLD 142

106' : 18226-1152
BU 1252

107' : 18218-1155
EGN 22AB
Alasia

110' : 18181-1155
TDT 783

111' : 18276-1039
DAM 320AB

111' : 18183-1157
BRT2750

111' : 18154-0850
BRT 476

113' : 18182-1159
SKF1505

118' : 18187-1206
SNA 90AB

123' : 18175-1206
WRS 12

123' : 18270-1125
TDT 874



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.

18204-1011 HER 2 (FK Ser)

 
 
18h 20m 22.74s -10° 11' 13.7" P.A. 18.00 sep 1.0 mag 11.18,11.88 Sp K5V dist. 75.93 pc (247.68 l.y.)
 
 
Coord 2000 18204-1011 Discov num HER   2 Comp Coord arcsec 2000 18 20 22.74 -10 11 13.7
Date first 1972 Date last 2019 Obs 9
Pa first 12 Pa last 18.4 P.A. Now (θ) 18.4°
Sep first 1.3 Sep last 0.983 Sep. Now (ρ) 0.983"
Mag pri 11.18 Mag sec 11.88 delta mag (ΔM) 0.7 Spectral class K5V (yellow-orange)
Pri motion ra -003 Sec motion ra +009
Pri motion dec -043 Sec motion dec -033
Notes N (See Notes)
rPM=0.362
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name FK Ser Constellation Serpens HIP 89874 Tycho2 5681-00526-3
Gaia DR2 4154524481067422976 BD BD-10 4662 Distance 75.93 Distance ly 247.68
 
 
WDS 18204-1011 HER 2 (FK Ser) : NOTES
 
 
discov_num notes refcode
HER 2 A post-T Tauri star, FK Ser.
 
 
REFERENCES
 
 
refcode metd author reference
Her1950 Pa - Herbig, G.H. 1950ApJ...111...15H
Her1950 ApJ 111, 15, 1950
Her1954a Pa - Herbig, G.H. 1954PASP...66...19H
Her1954a PASP 66, 19, 1954
Her1954b Pa j Herbig, G.H. 1954ApJ...119..483H
Her1954b ApJ 119, 483, 1954
Her1958 Pa j Herbig, G.H. 1958ApJ...128..259H
Her1958 ApJ 128, 259, 1958
Her1958 (Default date = decade of publication used for measures without given dates.)
Her1961 - Rach & Herbig 1961ApJ...133..143R
Her1961 ApJ 133, 143, 1961
Her1962 Pa - Herbig, G.H. 1962AdA&A...1...47H
Her1962 Advances Astron. Astrophys. 1, 47, 1962
Her1962 (Exact dates, telescopes, and techniques not given. Default date = decade of
Her1962 publication added.)
Her1967 Xr - Herbig, G.H. 1967PASP...79..502H
Her1967 PASP 79, 502, 1967
Her1972 Xr j Herbig, G.H. & Kameswara Rao, N. 1972ApJ...174..401H
Her1972 +Pa ApJ 174, 401, 1972
Her1979 Pa - Jones, B. & Herbig, G.H. 1979AJ.....84.1872J
Her1979 +C AJ 84, 1872, 1979
Her1988 Xr ? Herbig, G.H. & Bell, K.R. 1988cels.book.....H
Her1988 Lick Obs. Bull 1111, 1988
Her1998 C - Herbig, G.H. 1998ApJ...497..736H
Her1998 ApJ 497, 736, 1998
Her9999 Ma - Herbig, G.H. ...................
Her9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18204-1011 HER 2 1991 3 17 1.1 11.18 11.88 K5V N 182022.74-101113.7
18204-1011 HER 2 2008 4 17 1.0 11.18 11.88 K5V N 182022.74-101113.7
18204-1011 HER 2 2016 5 18 1.0 11.18 11.88 K5V N 182022.74-101113.7
18204-1011 HER 2 2019 7 18 1.0 11.18 11.88 K5V N 182022.74-101113.7

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

 
 
WDS 18204-1011 HER 2 (FK Ser) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18204-1011 HER 2 (FK Ser) : MEASURES
 
 
No records found.

 
 
WDS 18204-1011 (FK Ser) : VIRTUAL EYEPIECE
 
 

18204-1011 HER 2A mag 11.18 Sp K5V 18204-1011 HER 2B sep 1.0 P.A. 18.10 mag 11.88 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 18204-1011 (FK Ser) : ALADIN DSS IMAGE @ 18h 20m 22.74s -10° 11' 13.7"
 
 
 
 
WDS 18204-1011 HER 2 (FK Ser) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18204-1011 HER 2 distance=0' 18201-0936 MOC 14AB distance=36' 18201-0936 MOC 14AC distance=36' 18201-0936 MOC 14AD distance=36' 18181-0943 RST4584 distance=44' 18188-0929 RST4585 distance=49' 18174-0946 HDS2584 distance=51' 18189-1101 HU 60 distance=55' 18198-0917 SHN 230 distance=55' 18214-0915 BWE 1 distance=59' 18181-0920 TDT 782 distance=62' 18160-1006 HU 58 distance=66' 18181-1118 SNA 86 distance=75' 18202-1137 BRT2751 distance=86' 18161-1111 HDS2579 distance=88' 18207-1138 SKF2802 distance=88' 18218-1139 HU 62 distance=90' 18234-1137 BVD 126 distance=97' 18146-1113 HLD 142 distance=105' 18226-1152 BU 1252 distance=106' 18218-1155 EGN 22AB (Alasia) distance=107' 18218-1155 EGN 22AC (Alasia) distance=107' 18218-1155 EGN 22AD (Alasia) distance=107' 18218-1155 EGN 22AE (Alasia) distance=107' 18218-1155 EGN 22AF (Alasia) distance=107' 18218-1155 EGN 22AG (Alasia) distance=107' 18218-1155 EGN 22AH (Alasia) distance=107' 18218-1155 EGN 22AI (Alasia) distance=107' 18218-1155 EGN 22AJ (Alasia) distance=107' 18218-1155 EGN 22AK (Alasia) distance=107' 18218-1155 EGN 22AL (Alasia) distance=107' 18218-1155 EGN 22AM (Alasia) distance=107' 18218-1155 EGN 22AN (Alasia) distance=107' 18218-1155 EGN 22AO (Alasia) distance=107' 18218-1155 EGN 22AP (Alasia) distance=107' 18218-1155 EGN 22AQ (Alasia) distance=107' 18218-1155 EGN 22AR (Alasia) distance=107' 18181-1155 TDT 783 distance=110' 18276-1039 DAM 320AB distance=111' 18276-1039 DAM 320AC distance=111' 18183-1157 BRT2750 distance=111' 18154-0850 BRT 476 distance=111' 18182-1159 SKF1505 distance=113' 18187-1206 SNA 90Aa,Ab distance=118' 18187-1206 SNA 90AB distance=118' 18187-1206 SNA 90AC distance=118' 18175-1206 WRS 12 distance=123' 18270-1125 TDT 874 distance=123' 18132-1114 TDT 741 distance=124' 18285-1013 HJ 5497 distance=126' 18271-0853 HDS2608 distance=128' 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 18204-1011 HER 2 18 1.0
Show 18201-0936 MOC 14 AB 269 1.2 36
Show 18201-0936 MOC 14 AC 214 2.1 36
Show 18201-0936 MOC 14 AD 95 2.2 36
Show 18181-0943 RST4584 118 1.1 44
Show 18188-0929 RST4585 17 0.7 49
Show 18174-0946 HDS2584 352 0.7 51
Show 18189-1101 HU 60 260 1.4 55
Show 18198-0917 SHN 230 -1 0.4 55
Show 18214-0915 BWE 1 71 1.8 59
Show 18181-0920 TDT 782 85 0.4 62
Show 18160-1006 HU 58 127 0.7 66
Show 18181-1118 SNA 86 68 7.2 75
Show 18202-1137 BRT2751 24 3.9 86
Show 18161-1111 HDS2579 78 7.8 88
Show 18207-1138 SKF2802 344 5.6 88
Show 18218-1139 HU 62 25 0.5 90
Show 18234-1137 BVD 126 290 19.2 97
Show 18146-1113 HLD 142 253 1.3 105
Show 18226-1152 BU 1252 154 0.8 106
Show Alasia 18218-1155 EGN 22 AB 141 3.3 107
Show Alasia 18218-1155 EGN 22 AC 47 3.7 107
Show Alasia 18218-1155 EGN 22 AD 243 5.6 107
Show Alasia 18218-1155 EGN 22 AE 354 5.9 107
Show Alasia 18218-1155 EGN 22 AF 106 7.3 107
Show Alasia 18218-1155 EGN 22 AG 290 8.5 107
Show Alasia 18218-1155 EGN 22 AH 218 8.8 107
Show Alasia 18218-1155 EGN 22 AI 132 8.9 107
Show Alasia 18218-1155 EGN 22 AJ 294 10.4 107
Show Alasia 18218-1155 EGN 22 AK 337 10.6 107
Show Alasia 18218-1155 EGN 22 AL 310 12.2 107
Show Alasia 18218-1155 EGN 22 AM 9 12.8 107
Show Alasia 18218-1155 EGN 22 AN 334 12.9 107
Show Alasia 18218-1155 EGN 22 AO 339 14.2 107
Show Alasia 18218-1155 EGN 22 AP 294 19.6 107
Show Alasia 18218-1155 EGN 22 AQ 309 23.5 107
Show Alasia 18218-1155 EGN 22 AR 313 26.2 107
Show 18181-1155 TDT 783 67 0.5 110
Show 18276-1039 DAM 320 AB 64 16.5 111
Show 18276-1039 DAM 320 AC 97 8.0 111
Show 18183-1157 BRT2750 40 1.5 111
Show 18154-0850 BRT 476 135 4.0 111
Show 18182-1159 SKF1505 3 3.1 113
Show 18187-1206 SNA 90 Aa,Ab 303 0.0 118
Show 18187-1206 SNA 90 AB 34 3.0 118
Show 18187-1206 SNA 90 AC 267 7.6 118
Show 18175-1206 WRS 12 134 8.8 123
Show 18270-1125 TDT 874 299 0.8 123
Show 18132-1114 TDT 741 99 0.6 124
Show 18285-1013 HJ 5497 224 16.1 126
Show 18271-0853 HDS2608 344 0.1 128

 
 
WDS 18204-1011 : COMPONENTS
 
 
  A
B pa=18.1°
sep=0.98"
 
 
18204-1011 A
 
 
Componente originario normalizzato AB Name FK Ser Coord arcsec 2000 182022.74-101113.7 Mag 11.18
Spectral class K5V (yellow-orange) PmRA -3.00 PmDE -43.0 HIP 89874
Tycho2 5681-00526-3 BD BD-10 4662
Tycho2
Tycho2 5681-00526-3 Pflag RAmdeg 275.09476378 DEmdeg -10.18710084
PmRA -3.0 PmDE -42.8 E RAmdeg 38 E DEmdeg 58
E pmRA 2.7 E pmDE 2.7 EpRAm 1982.04 EpDEm 1980.09
Num 4 Q RAmdeg 1.1 Q DEmdeg 1.8 Q pmRA 1.2
Q pmDE 1.9 BTmag 13.096 E BTmag 0.356 VTmag 11.177
E VTmag 0.099 Prox 11 TYC HIP 89874
CCDM A RAdeg 275.09475167 DEdeg -10.18702917 EpRA 1990 1.77
EpDE 1990 1.64 E RAdeg 74.3 E DEdeg 84.4 Posflg P
Corr 0.0
Hipparcos
Catalog H HIP 89874 Proxy H RAhms 18 20 22.74
DEdms -10 11 13.3 Vmag 10.59 VarFlag 2 R Vmag H
RAdeg 275.095 DEdeg -10.187 AstroRef A Plx 9.42
CCDM 18204-1011 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 14 Rho 1.118 HD BD BD-10 4662
CD CP Dm number -10 4662 VIred 1.26
SpType K5Ve+K7Ve Li R SpType Coord arcsec 2000 182022.74-101113.3
Hipparcos 2
HIP 89874 Sn 15 So 3 Nc 2
RArad 4.8013093963 DErad -0.177797319 Plx 13.17 PmRA 10.51
PmDE -33.91 E RArad 4.02 E DErad 2.84 E Plx 3.81
E pmRA 5.95 E pmDE 4.03 Hpmag 10.7471 E Hpmag 0.0129
SHp 0.082 VA 2 BV 0 E BV 0
VI 0
CCDM
Ccdm 18204-1011 RComp Comp A Note1
Note2 Discov num DRAs -1.24 DDEs -12.5
R dRAs 81 Year Theta Rho
Obs 2 Vmag Sp K5 PmNote
PmRA -14 PmDE -19 Dm number -10 4662 Cat1 BD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 18149S1014A
HIC 89874
 
 
18204-1011 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182022.76-101112.8 Mag 11.88 PmRA 9.00
PmDE -33.0 Calc delta mag 0.7 Calc coord yes
CCDM
Ccdm 18204-1011 RComp Comp B Note1
Note2 Discov num HER DRAs DDEs
R dRAs Year 1972 Theta 12 Rho 1.3
Obs 1 Vmag Sp K7 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18149S1014B
HIC 89874