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Current system
18386-2020
DON 917


Nearby doubles
9' : 18391-2025
ARA1155

20' : 18393-2038
ARA1156

28' : 18367-2019
HO 567

28' : 18372-2039
DON 914

30' : 18406-2016
ARA1157

31' : 18406-2034
OCC1080

33' : 18405-2040
OCC1079

37' : 18398-2052
OCC1078

39' : 18407-1957
ARA1158

43' : 18395-2101
RST5121AB

44' : 18389-2103
WSI 90AB

45' : 18378-2103
ARA1549

45' : 18362-1950
ARA 756

51' : 18385-2110
B 1888

53' : 18388-1928
BRT1541

54' : 18387-2114
ARA1551

61' : 18406-2115
ARA1552

64' : 18416-2108
KPP 422

65' : 18412-1928
OCC9183

65' : 18379-2124
OCC 33

65' : 18374-1917
ARA 758

66' : 18425-1943
ARA 761

71' : 18431-2051
ARA1159

71' : 18371-1913
SEE 355

71' : 18336-2030
DON 911

72' : 18436-2013
DON 920



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

18386-2020 DON 917

 
 
18h 38m 36.49s -20° 20' 07.5" P.A. 51.00 sep 1.1 mag 11.40,13.70
 
 
Coord 2000 18386-2020 Discov num DON 917 Comp Coord arcsec 2000 18 38 36.49 -20 20 07.5
Date first 1930 Date last 2015 Obs 3
Pa first 49 Pa last 51.1 P.A. Now (θ) 51.1°
Sep first 0.8 Sep last 1.149 Sep. Now (ρ) 1.149"
Mag pri 11.40 Mag sec 13.70 delta mag (ΔM) 2.3 Spectral class
Pri motion ra +013 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes S (Parallax indidates non-physical)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6275-00885-1 Gaia DR2 4092108745007580416
 
 
WDS 18386-2020 DON 917 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Don1937 Ma j Donner, H.F. 1937MmRAS..65...51R
Don1937 MemRAS 65, 51, 1937
Don1955 Ma - Donner, H.F. 1955POMic..11....1R
Don1955 Pub. Univ. Michigan Obs. 11, 1, 1955
Don1964 Ma j Donner, H.F. 1964POMic...9...73R
Don1964 Pub. Univ. Michigan Obs. 9, 73, 1964
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18386-2020 DON 917 1941 2 49 0.8 11.40 13.70 183836.49-202007.5
18386-2020 DON 917 2015 3 51 1.1 11.40 13.70 S 183836.49-202007.5

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

 
 
WDS 18386-2020 DON 917 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18386-2020 DON 917 : MEASURES
 
 
No records found.

 
 
WDS 18386-2020 : VIRTUAL EYEPIECE
 
 

18386-2020 DON 917A mag 11.4 18386-2020 DON 917B sep 1.1 P.A. 49.30 mag 13.7 virtual eyepiece
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Radius:
Components only
 
 
WDS 18386-2020 : ALADIN DSS IMAGE @ 18h 38m 36.49s -20° 20' 07.5"
 
 
 
 
WDS 18386-2020 DON 917 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18386-2020 DON 917 distance=1' 18391-2025 ARA1155 distance=9' 18393-2038 ARA1156 distance=20' 18367-2019 HO 567 distance=28' 18372-2039 DON 914 distance=28' 18406-2016 ARA1157 distance=30' 18406-2034 OCC1080 distance=31' 18405-2040 OCC1079 distance=33' 18398-2052 OCC1078 distance=37' 18407-1957 ARA1158 distance=39' 18395-2101 RST5121AB distance=43' 18395-2101 HJ 2833AC distance=43' 18389-2103 WSI 90AB distance=44' 18389-2103 TNN 11AC distance=44' 18389-2103 TNN 11AD distance=44' 18378-2103 ARA1549 distance=45' 18362-1950 ARA 756 distance=45' 18385-2110 B 1888 distance=51' 18388-1928 BRT1541 distance=53' 18387-2114 ARA1551 distance=54' 18406-2115 ARA1552 distance=61' 18416-2108 KPP 422 distance=64' 18412-1928 OCC9183 distance=65' 18379-2124 OCC 33 distance=65' 18374-1917 ARA 758 distance=65' 18425-1943 ARA 761 distance=66' 18431-2051 ARA1159 distance=71' 18371-1913 SEE 355 distance=71' 18336-2030 DON 911 distance=71' 18436-2013 DON 920 distance=72' 18375-2130 ARA1548 distance=72' 18354-2118 ARA1544 distance=74' 18365-2128 ARA1547 distance=75' 18337-2048 ARA1154 distance=75' 18349-1925 ARA 755 distance=76' 18333-2003 ARA1153 distance=77' 18439-1954 STN 44 distance=80' 18441-1954 ARA1160 distance=82' 18328-2022 KPP 416 distance=83' 18393-1859 ARA 760 distance=83' 18340-1929 B 1887 distance=84' 18418-1909 J 2221AB distance=84' 18418-1909 J 2221AC distance=84' 18407-2139 RST5122 distance=85' 18429-1917 OCC9184 distance=88' 18388-1853 FEN 33 distance=88' 18386-2149 J 1633AB distance=90' 18338-2119 ARA1543 distance=90' 18386-2149 J 1633BC distance=90' 18360-2146 ARA1545 distance=94' 18352-2140 HU 246 distance=94' 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 18386-2020 DON 917 51 1.1 1
Show 18391-2025 ARA1155 238 11.6 9
Show 18393-2038 ARA1156 16 15.8 20
Show 18367-2019 HO 567 165 1.3 28
Show 18372-2039 DON 914 174 0.4 28
Show 18406-2016 ARA1157 356 9.5 30
Show 18406-2034 OCC1080 -1 0.0 31
Show 18405-2040 OCC1079 -1 0.0 33
Show 18398-2052 OCC1078 -1 0.7 37
Show 18407-1957 ARA1158 68 6.6 39
Show 18395-2101 RST5121 AB 21 4.2 43
Show 18395-2101 HJ 2833 AC 314 21.8 43
Show 18389-2103 WSI 90 AB 138 0.0 44
Show 18389-2103 TNN 11 AC 340 5.0 44
Show 18389-2103 TNN 11 AD 30 6.4 44
Show 18378-2103 ARA1549 188 14.1 45
Show 18362-1950 ARA 756 325 9.5 45
Show 18385-2110 B 1888 302 4.8 51
Show 18388-1928 BRT1541 34 4.2 53
Show 18387-2114 ARA1551 137 6.1 54
Show 18406-2115 ARA1552 287 12.6 61
Show 18416-2108 KPP 422 299 4.7 64
Show 18412-1928 OCC9183 -1 0.2 65
Show 18379-2124 OCC 33 -1 0.1 65
Show 18374-1917 ARA 758 270 9.1 65
Show 18425-1943 ARA 761 242 6.9 66
Show 18431-2051 ARA1159 84 11.7 71
Show 18371-1913 SEE 355 241 11.1 71
Show 18336-2030 DON 911 348 2.1 71
Show 18436-2013 DON 920 336 1.4 72
Show 18375-2130 ARA1548 336 14.8 72
Show 18354-2118 ARA1544 180 6.1 74
Show 18365-2128 ARA1547 230 11.0 75
Show 18337-2048 ARA1154 288 7.2 75
Show 18349-1925 ARA 755 77 13.1 76
Show 18333-2003 ARA1153 295 12.5 77
Show 18439-1954 STN 44 316 1.6 80
Show 18441-1954 ARA1160 184 8.4 82
Show 18328-2022 KPP 416 159 4.9 83
Show 18393-1859 ARA 760 60 5.6 83
Show 18340-1929 B 1887 283 2.2 84
Show 18418-1909 J 2221 AB 254 7.5 84
Show 18418-1909 J 2221 AC 346 17.9 84
Show 18407-2139 RST5122 189 2.1 85
Show 18429-1917 OCC9184 -1 0.1 88
Show 18388-1853 FEN 33 248 2.6 88
Show 18386-2149 J 1633 AB 143 36.8 90
Show 18338-2119 ARA1543 253 8.5 90
Show 18386-2149 J 1633 BC 149 7.5 90
Show 18360-2146 ARA1545 203 12.9 94
Show 18352-2140 HU 246 68 2.6 94

 
 
WDS 18386-2020 : COMPONENTS
 
 
  A
B pa=49.3°
sep=1.11"
 
 
18386-2020 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 183836.49-202007.5 Mag 11.4 PmRA 13.00
PmDE -7.0 Tycho2 6275-00885-1
Tycho2
Tycho2 6275-00885-1 Pflag RAmdeg 279.65206137 DEmdeg -20.33542078
PmRA 12.5 PmDE -6.7 E RAmdeg 72 E DEmdeg 84
E pmRA 2.8 E pmDE 3.0 EpRAm 1979.97 EpDEm 1976.90
Num 4 Q RAmdeg 0.8 Q DEmdeg 0.3 Q pmRA 0.8
Q pmDE 0.3 BTmag 11.944 E BTmag 0.132 VTmag 11.257
E VTmag 0.115 Prox 999 TYC HIP
CCDM RAdeg 279.65203083 DEdeg -20.33540528 EpRA 1990 1.71
EpDE 1990 1.61 E RAdeg 78.9 E DEdeg 94.6 Posflg
Corr 0.0
CCDM
Ccdm 18386-2020 RComp Comp A Note1
Note2 Discov num DRAs 0.50 DDEs -8.0
R dRAs 41 Year Theta Rho
Obs 2 Vmag 10.5 Sp PmNote
PmRA PmDE Dm number -20 5216 Cat1 BD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18327S2025A
HIC
 
 
18386-2020 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183836.55-202006.8 Mag 13.7 Calc delta mag 2.3
Calc coord yes
CCDM
Ccdm 18386-2020 RComp Comp B Note1
Note2 Discov num DON 917 DRAs DDEs
R dRAs Year 1930 Theta 048 Rho 0.8
Obs 2 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18327S2025B
HIC