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Current system
20473+4535
HO 280
HD 198237


Nearby doubles
17' : 20489+4537
HDS2965

19' : 20485+4519
LDS2456

20' : 20464+4551
CVR 230

20' : 20490+4525
SMA 120

22' : 20492+4525
COU2646

32' : 20500+4521
ES 2702

34' : 20504+4525
LDS5912

37' : 20489+4607
HJ 1581

38' : 20440+4521
KPP3361

43' : 20494+4458
GRV 384

44' : 20504+4518
SMA 121

44' : 20494+4613
ES 670

45' : 20436+4514
CBL 85

45' : 20461+4452
ES 30

46' : 20514+4519
ARG 40

48' : 20519+4537
SMA 122

48' : 20494+4452
TDS1103

50' : 20459+4448
ES 2701

50' : 20456+4621
HDS2955

51' : 20427+4521
ES 1270

52' : 20438+4610
TDT2503

53' : 20511+4459
LDS2459

54' : 20434+4501
ES 668AB

55' : 20423+4549
STT 411AB

56' : 20421+4532
BKO 157

56' : 20420+4532
BRT2271



Selections
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20473+4535 HO 280 (HD 198237)

 
 
20h 47m 20.77s +45° 34' 48.0" P.A. 75.00 sep 11.7 mag 6.40,12.40 Sp M2III dist. 353.36 pc (1152.66 l.y.)
 
 
Coord 2000 20473+4535 Discov num HO  280 Comp Coord arcsec 2000 20 47 20.77 +45 34 48.0
Date first 1888 Date last 2015 Obs 10
Pa first 75 Pa last 75.4 P.A. Now (θ) 75.4°
Sep first 14.0 Sep last 11.656 Sep. Now (ρ) 11.656"
Mag pri 6.40 Mag sec 12.40 delta mag (ΔM) 6 Spectral class M2III (red)
Pri motion ra +002 Sec motion ra
Pri motion dec -022 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198237 Constellation Cygnus SAO 50060 HIP 102585
Tycho2 3574-01163-1 Gaia DR2 2166263517070145664 HD 198237 HR 7966
GC 28997 ADS 14298 BD BD+45 3275 Distance 353.36
Distance ly 1152.66
 
 
WDS 20473+4535 HO 280 (HD 198237) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20473+4535 HO 280 2008 8 75 11.9 6.40 12.40 M2III D 204720.77+453448.0
20473+4535 HO 280 2012 9 75 11.3 6.40 12.40 M2III D 204720.77+453448.0
20473+4535 HO 280 2015 10 75 11.7 6.40 12.40 M2III 204720.77+453448.0

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

 
 
WDS 20473+4535 HO 280 (HD 198237) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20473+4535 HO 280 (HD 198237) : MEASURES
 
 
No records found.

 
 
WDS 20473+4535 (HD 198237) : VIRTUAL EYEPIECE
 
 

20473+4535 HO 280A mag 6.4 Sp M2III 20473+4535 HO 280B sep 8.4 P.A. 69.60 mag 12.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20473+4535 (HD 198237) : ALADIN DSS IMAGE @ 20h 47m 20.77s +45° 34' 48.0"
 
 
 
 
WDS 20473+4535 HO 280 (HD 198237) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20473+4535 HO 280 distance=0' 20489+4537 HDS2965 distance=17' 20485+4519 LDS2456 distance=19' 20464+4551 CVR 230 distance=20' 20490+4525 SMA 120 distance=20' 20492+4525 COU2646 distance=22' 20500+4521 ES 2702 distance=32' 20504+4525 LDS5912 distance=34' 20489+4607 HJ 1581 distance=37' 20440+4521 KPP3361 distance=38' 20494+4458 GRV 384 distance=43' 20504+4518 SMA 121 distance=44' 20494+4613 ES 670 distance=44' 20436+4514 CBL 85 distance=45' 20461+4452 ES 30 distance=45' 20514+4519 ARG 40 distance=46' 20519+4537 SMA 122 distance=48' 20494+4452 TDS1103 distance=48' 20459+4448 ES 2701 distance=50' 20456+4621 HDS2955 distance=50' 20427+4521 ES 1270 distance=51' 20438+4610 TDT2503 distance=52' 20511+4459 LDS2459 distance=53' 20423+4549 BKO 158EH distance=54' 20423+4549 BKO 158EF distance=54' 20423+4549 BKO 158EG distance=54' 20423+4549 BKO 158EI distance=54' 20434+4501 ES 668AB distance=54' 20434+4501 ES 668AC distance=54' 20434+4501 FYM 322AD distance=54' 20423+4549 STT 411AB distance=55' 20423+4549 WAL 132AC distance=55' 20423+4549 BKO 158AF distance=55' 20423+4549 WAL 132BC distance=55' 20423+4549 CTT 15BD distance=55' 20423+4549 CTT 15BE distance=55' 20421+4532 BKO 157 distance=56' 20420+4532 BRT2271 distance=56' 20432+4458 BKO 159 distance=58' 20527+4547 TDT2597 distance=58' 20466+4632 KUI 101 distance=58' 20433+4456 ES 2699 distance=58' 20437+4619 HO 140 distance=59' 20528+4551 COU2647 distance=60' 20508+4628 BRT2276AB distance=65' 20508+4628 FYM 314AC distance=65' 20508+4628 FYM 314AD distance=65' 20414+4517 H N 73 (Deneb) distance=65' 20527+4607 A 750 distance=65' 20535+4523 HDS2975 distance=67' 20501+4635 ES 671 distance=67' 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 20473+4535 HO 280 75 11.7
Show 20489+4537 HDS2965 282 0.1 17
Show 20485+4519 LDS2456 236 18.0 19
Show 20464+4551 CVR 230 7 112.9 20
Show 20490+4525 SMA 120 313 4.3 20
Show 20492+4525 COU2646 266 0.4 22
Show 20500+4521 ES 2702 348 8.6 32
Show 20504+4525 LDS5912 252 17.4 34
Show 20489+4607 HJ 1581 170 22.4 37
Show 20440+4521 KPP3361 134 2.2 38
Show 20494+4458 GRV 384 222 22.1 43
Show 20504+4518 SMA 121 32 11.6 44
Show 20494+4613 ES 670 81 6.5 44
Show 20436+4514 CBL 85 166 17.7 45
Show 20461+4452 ES 30 57 17.1 45
Show 20514+4519 ARG 40 250 9.2 46
Show 20519+4537 SMA 122 262 7.4 48
Show 20494+4452 TDS1103 200 0.8 48
Show 20459+4448 ES 2701 81 50.9 50
Show 20456+4621 HDS2955 289 0.4 50
Show 20427+4521 ES 1270 289 5.9 51
Show 20438+4610 TDT2503 68 0.5 52
Show 20511+4459 LDS2459 228 43.7 53
Show 20423+4549 BKO 158 EH 340 51.6 54
Show 20423+4549 BKO 158 EF 281 24.9 54
Show 20423+4549 BKO 158 EG 221 28.7 54
Show 20423+4549 BKO 158 EI 236 39.6 54
Show 20434+4501 ES 668 AB 68 5.2 54
Show 20434+4501 ES 668 AC 269 23.4 54
Show 20434+4501 FYM 322 AD 200 18.7 54
Show 20423+4549 STT 411 AB 349 31.8 55
Show 20423+4549 WAL 132 AC 357 71.2 55
Show 20423+4549 BKO 158 AF 143 41.0 55
Show 20423+4549 WAL 132 BC 4 40.1 55
Show 20423+4549 CTT 15 BD 178 86.6 55
Show 20423+4549 CTT 15 BE 141 87.9 55
Show 20421+4532 BKO 157 240 8.9 56
Show 20420+4532 BRT2271 269 4.5 56
Show 20432+4458 BKO 159 37 13.2 58
Show 20527+4547 TDT2597 327 1.3 58
Show 20466+4632 KUI 101 112 0.3 58
Show 20433+4456 ES 2699 296 40.1 58
Show 20437+4619 HO 140 313 8.0 59
Show 20528+4551 COU2647 225 0.4 60
Show 20508+4628 BRT2276 AB 254 3.7 65
Show 20508+4628 FYM 314 AC 149 9.5 65
Show 20508+4628 FYM 314 AD 86 11.2 65
Show Deneb 20414+4517 H N 73 105 75.6 65
Show 20527+4607 A 750 211 0.1 65
Show 20535+4523 HDS2975 191 0.2 67
Show 20501+4635 ES 671 91 1.6 67

 
 
WDS 20473+4535 : COMPONENTS
 
 
  A
B pa=69.6°
sep=8.42"
 
 
20473+4535 A
 
 
Componente originario normalizzato AB Name HD 198237 Coord arcsec 2000 204720.77+453448.0 Mag 6.4
Spectral class M2III (red) PmRA 2.00 PmDE -22.0 SAO 50060
HIP 102585 Tycho2 3574-01163-1 HD 198237 HR 7966
GC 28997 ADS 14298 BD BD+45 3275
Tycho2
Tycho2 3574-01163-1 Pflag RAmdeg 311.83653734 DEmdeg 45.57993560
PmRA 4.1 PmDE -22.4 E RAmdeg 4 E DEmdeg 4
E pmRA 0.8 E pmDE 0.9 EpRAm 1991.38 EpDEm 1991.42
Num 13 Q RAmdeg 0.8 Q DEmdeg 0.5 Q pmRA 0.8
Q pmDE 0.6 BTmag 8.550 E BTmag 0.017 VTmag 6.609
E VTmag 0.010 Prox 999 TYC T HIP 102585
CCDM RAdeg 311.83652361 DEdeg 45.57998722 EpRA 1990 1.75
EpDE 1990 1.69 E RAdeg 4.2 E DEdeg 4.4 Posflg
Corr -0.1
SAO
SAO 50060 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.022 Vmag 6.7 SpType K5
Double code Source 70 CatNum 28997 DM BD+45 3275
DMcomp BDsup HD 198237 M HD 0
GC 28997 RA1950rad 5.43508385 DE1950rad 0.79229702 PmRA2000 0.0004
PmDE2000 -0.025
Hipparcos
Catalog H HIP 102585 Proxy RAhms 20 47 20.77
DEdms +45 34 48.0 Vmag 6.41 VarFlag R Vmag H
RAdeg 311.837 DEdeg 45.58 AstroRef Plx 2.49
CCDM 20473+4535 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198237 BD BD+45 3275
CD CP Dm number +45 3275 VIred 1.58
SpType K3III R SpType Coord arcsec 2000 204720.77+453448.0
Hipparcos 2
HIP 102585 Sn 5 So 0 Nc 1
RArad 5.4425740552 DErad 0.7955208776 Plx 2.83 PmRA 4.93
PmDE -22.35 E RArad 0.32 E DErad 0.28 E Plx 0.39
E pmRA 0.39 E pmDE 0.31 Hpmag 6.5246 E Hpmag 0.0011
SHp 0.012 VA 0 BV 1.606 E BV 0.005
VI 1.58
CCDM
Ccdm 20473+4535 RComp Comp A Note1
Note2 Discov num DRAs 2.76 DDEs -12.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.0 Sp K5 PmNote *
PmRA 0 PmDE -18 Dm number +45 3275 Cat1 BD
Name2 +45 1747 Cat2 AGK2/3 HD 198237 M HD
ADS BDS A14298 M ADS BDS N IDS IDS 20439N4513A
HIC 102585
 
 
20473+4535 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204721.52+453450.9 Mag 12.4 Calc delta mag 6
Calc coord yes
CCDM
Ccdm 20473+4535 RComp Comp B Note1
Note2 Discov num HO 280 DRAs 4.02 DDEs -9.2
R dRAs 90 Year 1960 Theta 078 Rho 12.9
Obs 6 Vmag 13.0 Sp PmNote
PmRA 0 PmDE -18 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14298 M ADS BDS N IDS IDS 20439N4513B
HIC