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Doubles in session


Current system
18068-2021
DON 882


Nearby doubles
13' : 18062-2012
J 1618

17' : 18070-2005
ARA1134

28' : 18063-1955
OCC9174

38' : 18061-2057
ARA1133

42' : 18063-1941
J 1619

43' : 18097-2007
BRT1514

52' : 18055-2109
RST5100

55' : 18046-1936
HJ 2817

55' : 18071-2115
ARA1512

59' : 18069-1923
A 2258

60' : 18081-1925
ARA 730AB

60' : 18070-2121
ARA1510

61' : 18079-2119
RST5101

63' : 18100-2105
TDT 719

64' : 18112-2041
ARA1136

67' : 18115-2023
ARA1137

69' : 18112-1951
BU 132AB

69' : 18101-1929
SKF 934

69' : 18077-1913
ARA 729

73' : 18116-1952
OCC9176

74' : 18059-2134
ARA1507

74' : 18084-2132
ARA1514

77' : 18116-2059
ARA1138

79' : 18055-1906
ARA 727

80' : 18033-1919
BRT1512

80' : 18113-2111
ARA1516



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

18068-2021 DON 882

 
 
18h 06m 52.61s -20° 21' 03.0" P.A. 119.00 sep 1.8 mag 10.57,15.10 Sp B8
 
 
Coord 2000 18068-2021 Discov num DON 882 Comp Coord arcsec 2000 18 06 52.61 -20 21 03.0
Date first 1930 Date last 2015 Obs 3
Pa first 119 Pa last 118.6 P.A. Now (θ) 118.6°
Sep first 1.2 Sep last 1.847 Sep. Now (ρ) 1.847"
Mag pri 10.57 Mag sec 15.10 delta mag (ΔM) 4.53 Spectral class B8 (blue-white)
Pri motion ra +005 Sec motion ra
Pri motion dec +004 Sec motion dec
Notes S (Parallax indidates non-physical)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6259-00448-1 Gaia DR2 4094934348149563776 HD 312690
 
 
WDS 18068-2021 DON 882 : 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
18068-2021 DON 882 1940 2 119 1.2 10.57 15.10 180652.61-202103.0
18068-2021 DON 882 2015 3 119 1.8 10.57 15.10 B8 S 180652.61-202103.0

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

 
 
WDS 18068-2021 DON 882 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18068-2021 DON 882 : MEASURES
 
 
No records found.

 
 
WDS 18068-2021 : VIRTUAL EYEPIECE
 
 

18068-2021 DON 882A mag 10.57 Sp B8 18068-2021 DON 882B sep 1.8 P.A. 120.20 mag 15.1 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18068-2021 : ALADIN DSS IMAGE @ 18h 06m 52.61s -20° 21' 03.0"
 
 
 
 
WDS 18068-2021 DON 882 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18068-2021 DON 882 distance=0' 18062-2012 J 1618 distance=13' 18070-2005 ARA1134 distance=17' 18063-1955 OCC9174 distance=28' 18061-2057 ARA1133 distance=38' 18063-1941 J 1619 distance=42' 18097-2007 BRT1514 distance=43' 18055-2109 RST5100 distance=52' 18046-1936 HJ 2817 distance=55' 18071-2115 ARA1512 distance=55' 18069-1923 A 2258 distance=59' 18081-1925 ARA 730AB distance=60' 18081-1925 AOT 68AC distance=60' 18081-1925 AOT 68BC distance=60' 18070-2121 ARA1510 distance=60' 18079-2119 RST5101 distance=61' 18100-2105 TDT 719 distance=63' 18112-2041 ARA1136 distance=64' 18115-2023 ARA1137 distance=67' 18112-1951 BU 132AB distance=69' 18112-1951 TOK 57Aa,Ab distance=69' 18112-1951 OCC9175Ba,Bb distance=69' 18101-1929 SKF 934 distance=69' 18077-1913 ARA 729 distance=69' 18116-1952 OCC9176 distance=73' 18059-2134 ARA1507 distance=74' 18084-2132 ARA1514 distance=74' 18116-2059 ARA1138 distance=77' 18055-1906 ARA 727 distance=79' 18033-1919 BRT1512 distance=80' 18113-2111 ARA1516 distance=80' 18121-2054 ARA1139 distance=80' 18039-1913 B 2431 distance=81' 18039-1913 OCC 537Aa,Ab distance=81' 18067-1859 HJ 592 distance=83' 18079-2141 ARA1513 distance=83' 18054-2140 TOK 365 distance=83' 18062-2143 ARA1508 distance=83' 18128-2024 DON 886 distance=84' 18069-2144 ARA1509 distance=84' 18047-1903 B 2852 distance=84' 18048-1902 OCC 536 distance=84' 18011-1958 I 620 distance=85' 18089-1901 ARA 731 distance=86' 18011-2048 HLD 140 distance=86' 18011-1952 A 2387AB distance=87' 18011-1952 I 9027AC distance=87' 18072-1854 A 2259BC distance=87' 18131-2024 SKF1038CD distance=88' 18072-1854 STN 41A,BC distance=88' 18131-2024 J 1621AC distance=88' 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 18068-2021 DON 882 119 1.8
Show 18062-2012 J 1618 359 8.9 13
Show 18070-2005 ARA1134 280 11.7 17
Show 18063-1955 OCC9174 -1 0.0 28
Show 18061-2057 ARA1133 325 15.2 38
Show 18063-1941 J 1619 188 6.8 42
Show 18097-2007 BRT1514 22 4.6 43
Show 18055-2109 RST5100 283 0.7 52
Show 18046-1936 HJ 2817 275 13.4 55
Show 18071-2115 ARA1512 281 14.9 55
Show 18069-1923 A 2258 138 0.4 59
Show 18081-1925 ARA 730 AB 330 12.6 60
Show 18081-1925 AOT 68 AC 314 23.6 60
Show 18081-1925 AOT 68 BC 298 11.9 60
Show 18070-2121 ARA1510 266 14.4 60
Show 18079-2119 RST5101 191 0.7 61
Show 18100-2105 TDT 719 300 2.7 63
Show 18112-2041 ARA1136 305 14.3 64
Show 18115-2023 ARA1137 334 4.1 67
Show 18112-1951 BU 132 AB 187 1.4 69
Show 18112-1951 TOK 57 Aa,Ab 16 0.0 69
Show 18112-1951 OCC9175 Ba,Bb -1 0.0 69
Show 18101-1929 SKF 934 352 2.4 69
Show 18077-1913 ARA 729 343 13.1 69
Show 18116-1952 OCC9176 -1 0.0 73
Show 18059-2134 ARA1507 213 6.6 74
Show 18084-2132 ARA1514 186 14.5 74
Show 18116-2059 ARA1138 157 13.6 77
Show 18055-1906 ARA 727 24 9.9 79
Show 18033-1919 BRT1512 34 3.8 80
Show 18113-2111 ARA1516 274 13.4 80
Show 18121-2054 ARA1139 123 10.6 80
Show 18039-1913 B 2431 285 9.7 81
Show 18039-1913 OCC 537 Aa,Ab 104 0.9 81
Show 18067-1859 HJ 592 206 36.6 83
Show 18079-2141 ARA1513 213 6.1 83
Show 18054-2140 TOK 365 293 6.6 83
Show 18062-2143 ARA1508 277 9.4 83
Show 18128-2024 DON 886 205 4.9 84
Show 18069-2144 ARA1509 344 15.1 84
Show 18047-1903 B 2852 144 4.1 84
Show 18048-1902 OCC 536 -1 0.1 84
Show 18011-1958 I 620 64 19.4 85
Show 18089-1901 ARA 731 224 6.3 86
Show 18011-2048 HLD 140 265 2.3 86
Show 18011-1952 A 2387 AB 44 1.0 87
Show 18011-1952 I 9027 AC 301 33.3 87
Show 18072-1854 A 2259 BC 202 1.3 87
Show 18131-2024 SKF1038 CD 187 4.1 88
Show 18072-1854 STN 41 A,BC 211 29.8 88
Show 18131-2024 J 1621 AC 301 15.8 88

 
 
WDS 18068-2021 : COMPONENTS
 
 
  A
B pa=120.2°
sep=1.76"
 
 
18068-2021 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 180652.61-202103.0 Mag 10.57 Spectral class B8 (blue-white)
PmRA 5.00 PmDE 4.0 Tycho2 6259-00448-1 HD 312690
DM BD-20 4989
Tycho2
Tycho2 6259-00448-1 Pflag RAmdeg 271.71923129 DEmdeg -20.35085178
PmRA 5.1 PmDE 4.0 E RAmdeg 28 E DEmdeg 37
E pmRA 2.7 E pmDE 2.9 EpRAm 1990.25 EpDEm 1989.18
Num 3 Q RAmdeg 1.3 Q DEmdeg 1.2 Q pmRA 1.3
Q pmDE 1.1 BTmag 10.981 E BTmag 0.053 VTmag 10.567
E VTmag 0.052 Prox 933 TYC T HIP
CCDM RAdeg 271.71921861 DEdeg -20.35086111 EpRA 1990 1.76
EpDE 1990 1.70 E RAdeg 28.2 E DEdeg 38.0 Posflg
Corr 0.0
 
 
18068-2021 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180652.72-202103.9 Mag 15.1 Calc delta mag 4.53
Calc coord yes