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Current system
20184+4033
ARN 49
HD 228839


Nearby doubles
8' : 20177+4030
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TDT2228



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

20184+4033 ARN 49 (HD 228839)

 
 
20h 18m 24.24s +40° 32' 32.8" P.A. 313.00 sep 30.2 mag 9.59,10.36 Sp K2
 
 
Coord 2000 20184+4033 Discov num ARN  49 Comp Coord arcsec 2000 20 18 24.24 +40 32 32.8
Date first 1892 Date last 2015 Obs 16
Pa first 314 Pa last 313.2 P.A. Now (θ) 313.2°
Sep first 31.6 Sep last 30.152 Sep. Now (ρ) 30.152"
Mag pri 9.59 Mag sec 10.36 delta mag (ΔM) 0.77 Spectral class K2 (yellow-orange)
Pri motion ra +008 Sec motion ra +015
Pri motion dec +016 Sec motion dec +008
Notes
rPM=0.594
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228839 Constellation Cygnus SAO 49446 Tycho2 3155-00379-1
Gaia DR2 2062342312268666624 HD 228839 DM BD+40 4105
 
 
WDS 20184+4033 ARN 49 (HD 228839) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 ARN Arnold, D.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20184+4033 ARN 49 2003 9 313 30.6 9.59 10.36 D 201824.24+403232.8
20184+4033 ARN 49 2010 11 313 30.2 9.59 10.36 K2 201824.24+403232.8
20184+4033 ARN 49 2015 12 313 30.2 9.59 10.36 K2 201824.24+403232.8

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

 
 
WDS 20184+4033 ARN 49 (HD 228839) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20184+4033 ARN 49 (HD 228839) : MEASURES
 
 
No records found.

 
 
WDS 20184+4033 (HD 228839) : VIRTUAL EYEPIECE
 
 

20184+4033 ARN 49A mag 9.59 Sp K2 20184+4033 ARN 49B sep 26.6 P.A. 321.00 mag 10.36 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 20184+4033 (HD 228839) : ALADIN DSS IMAGE @ 20h 18m 24.24s +40° 32' 32.8"
 
 
 
 
WDS 20184+4033 ARN 49 (HD 228839) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20184+4033 ARN 49 distance=0' 20177+4030 HDS2897 distance=8' 20181+4044 STF2666CD distance=12' 20181+4044 CHR 96Aa,Ab distance=12' 20181+4044 STF2666AB distance=12' 20181+4044 STF2666AC distance=12' 20181+4044 TAR 5AD distance=12' 20176+4020 BRT2259 distance=17' 20169+4022 BU 661AB distance=20' 20169+4022 BU 661AC distance=20' 20170+4017 CNT 5 distance=23' 20204+4021 TDT2186 distance=26' 20207+4031 TDT2193 distance=27' 20158+4024 TDS1055 distance=31' 20210+4041 TDT2199 distance=32' 20155+4030 A 390 distance=34' 20163+4007 MLB1013 distance=36' 20199+4000 MLB1015 distance=37' 20178+3956 HJ 2951AB distance=38' 20178+3956 FOX9014AC distance=38' 20198+3958 MLB1014 distance=39' 20197+4108 STTA205 distance=39' 20183+3953 BKO 822 distance=40' 20203+3958 BRT2260 distance=41' 20187+4113 COU2640 distance=42' 20148+4035 TDT2118 distance=42' 20184+3950 A 1424 distance=43' 20221+4042 ES 1676 distance=44' 20222+4015 BU 665A,BC (Sadr) distance=47' 20222+4015 BU 665BC,D distance=48' 20222+4015 BU 665BC distance=48' 20189+3945 COU2537 distance=48' 20144+4048 TDT2113 distance=49' 20181+4122 ES 1674 distance=50' 20185+4123 TDT2154 distance=51' 20231+4037 TDT2228 distance=54' 20168+3942 STF2663AB distance=54' 20168+3942 CTT 21AC distance=54' 20168+3942 DAM1040AF distance=54' 20168+3942 DAM1040FG distance=54' 20205+4127 LI 4 distance=55' 20205+4122 LI 5AB distance=55' 20205+4122 FAB 15AC distance=55' 20136+4040 TDT2104 distance=56' 20231+4047 J 787AB distance=56' 20231+4047 J 787AC distance=56' 20231+4047 J 787AD distance=56' 20231+4047 J 787CD distance=56' 20231+4048 GRF 15 distance=56' 20192+3938 ES 2051 distance=56' 20232+4046 ES 1677 distance=56' 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 20184+4033 ARN 49 313 30.2 0
Show 20177+4030 HDS2897 273 0.3 8
Show 20181+4044 STF2666 CD 142 24.1 12
Show 20181+4044 CHR 96 Aa,Ab 151 0.1 12
Show 20181+4044 STF2666 AB 245 2.8 12
Show 20181+4044 STF2666 AC 207 34.0 12
Show 20181+4044 TAR 5 AD 181 49.6 12
Show 20176+4020 BRT2259 29 1.4 17
Show 20169+4022 BU 661 AB 69 12.3 20
Show 20169+4022 BU 661 AC 217 111.7 20
Show 20170+4017 CNT 5 331 5.9 23
Show 20204+4021 TDT2186 349 0.5 26
Show 20207+4031 TDT2193 288 1.2 27
Show 20158+4024 TDS1055 163 0.9 31
Show 20210+4041 TDT2199 122 0.8 32
Show 20155+4030 A 390 328 0.8 34
Show 20163+4007 MLB1013 160 4.0 36
Show 20199+4000 MLB1015 89 4.0 37
Show 20178+3956 HJ 2951 AB 125 10.8 38
Show 20178+3956 FOX9014 AC 61 24.4 38
Show 20198+3958 MLB1014 241 7.6 39
Show 20197+4108 STTA205 321 45.5 39
Show 20183+3953 BKO 822 60 7.1 40
Show 20203+3958 BRT2260 9 3.2 41
Show 20187+4113 COU2640 265 0.5 42
Show 20148+4035 TDT2118 312 0.4 42
Show 20184+3950 A 1424 46 1.1 43
Show 20221+4042 ES 1676 285 2.4 44
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 47
Show 20222+4015 BU 665 BC,D 131 41.0 48
Show 20222+4015 BU 665 BC 302 1.9 48
Show 20189+3945 COU2537 295 0.8 48
Show 20144+4048 TDT2113 181 0.5 49
Show 20181+4122 ES 1674 125 4.9 50
Show 20185+4123 TDT2154 311 0.5 51
Show 20231+4037 TDT2228 242 0.4 54
Show 20168+3942 STF2663 AB 322 5.4 54
Show 20168+3942 CTT 21 AC 188 103.0 54
Show 20168+3942 DAM1040 AF 123 22.3 54
Show 20168+3942 DAM1040 FG 225 3.5 54
Show 20205+4127 LI 4 333 8.9 55
Show 20205+4122 LI 5 AB 145 8.8 55
Show 20205+4122 FAB 15 AC 203 19.5 55
Show 20136+4040 TDT2104 161 0.9 56
Show 20231+4047 J 787 AB 165 2.6 56
Show 20231+4047 J 787 AC 112 9.5 56
Show 20231+4047 J 787 AD 293 15.8 56
Show 20231+4047 J 787 CD 292 25.3 56
Show 20231+4048 GRF 15 139 199.3 56
Show 20192+3938 ES 2051 306 4.9 56
Show 20232+4046 ES 1677 270 7.4 56

 
 
WDS 20184+4033 : COMPONENTS
 
 
  A
B pa=321.0°
sep=26.55"
 
 
20184+4033 A
 
 
Name HD 228846 Coord arcsec 2000 201824.24+403232.8 Mag 9.59 Spectral class K2 (yellow-orange)
PmRA 8.00 PmDE 16.0 SAO 49446 Tycho2 3155-00379-1
HD 228846 DM BD+40 4105
Tycho2
Tycho2 3155-00379-1 Pflag RAmdeg 304.60098324 DEmdeg 40.54244750
PmRA 8.7 PmDE 13.8 E RAmdeg 18 E DEmdeg 17
E pmRA 1.1 E pmDE 1.1 EpRAm 1987.53 EpDEm 1987.64
Num 8 Q RAmdeg 1.3 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 0.9 BTmag 11.042 E BTmag 0.051 VTmag 9.585
E VTmag 0.023 Prox 305 TYC T HIP
CCDM RAdeg 304.60095778 DEdeg 40.54241667 EpRA 1990 1.68
EpDE 1990 1.71 E RAdeg 19.5 E DEdeg 18.6 Posflg
Corr -0.2
SAO
SAO 49446 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 0.022 Vmag 8.9 SpType B9
Double code Source 4 CatNum 2007 DM BD+40 4105
DMcomp BDsup HD 228846 M HD 0
GC RA1950rad 5.30852252 DE1950rad 0.70485431 PmRA2000 -0.0002
PmDE2000 0.02
 
 
20184+4033 B
 
 
Coord arcsec 2000 201822.77+403253.4 Mag 10.36 PmRA 15.00 PmDE 8.0
Tycho2 3155-00166-1 HD 228839 Calc delta mag 0.77 Calc coord yes
Tycho2
Tycho2 3155-00166-1 Pflag RAmdeg 304.59288213 DEmdeg 40.54821883
PmRA 15.3 PmDE 5.4 E RAmdeg 26 E DEmdeg 24
E pmRA 1.2 E pmDE 1.1 EpRAm 1984.25 EpDEm 1984.54
Num 7 Q RAmdeg 0.6 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.6 BTmag 10.798 E BTmag 0.045 VTmag 10.359
E VTmag 0.043 Prox 305 TYC T HIP
CCDM RAdeg 304.59283806 DEdeg 40.54820361 EpRA 1990 1.68
EpDE 1990 1.73 E RAdeg 30.1 E DEdeg 28.1 Posflg
Corr -0.1