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Current system
18210-1805
DON 893


Nearby doubles
5' : 18212-1800
DON 894

9' : 18206-1811
SKF 100

21' : 18198-1809
RST3175

24' : 18229-1818
J 1629

26' : 18195-1754
ARA 277

27' : 18188-1804
OL 104

28' : 18192-1757
ARA 276

30' : 18193-1817
BRT1527

35' : 18227-1740
ARA 279

35' : 18232-1823
TOB 288

37' : 18191-1828
ARA 474

41' : 18197-1730
TDT 796

43' : 18181-1810
NSN 136

46' : 18228-1843
CHR 235

47' : 18229-1726
J 2209

47' : 18228-1727
J 2210

47' : 18187-1837
BU 639AB

47' : 18214-1852
EVS 35AB

48' : 18179-1750
ARA 275AB

51' : 18190-1724
TVB 301

51' : 18210-1714
J 1627

52' : 18177-1820
ARA 472

52' : 18183-1733
J 2206

53' : 18180-1834
ARA 473

54' : 18223-1856
J 1740AB

55' : 18241-1735
J 2128



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

18210-1805 DON 893

 
 
18h 21m 05.96s -18° 04' 47.2" P.A. 220.00 sep 2.8 mag 9.47,13.20 Sp B
 
 
Coord 2000 18210-1805 Discov num DON 893 Comp Coord arcsec 2000 18 21 05.96 -18 04 47.2
Date first 1932 Date last 2000 Obs 4
Pa first 226 Pa last 219.7 P.A. Now (θ) 219.7°
Sep first 2.4 Sep last 2.81 Sep. Now (ρ) 2.81"
Mag pri 9.47 Mag sec 13.20 delta mag (ΔM) 3.73 Spectral class B (blue-white)
Pri motion ra +000 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius Tycho2 6269-01826-1 Gaia DR2 4096368974701052160 HD 168553
 
 
WDS 18210-1805 DON 893 : 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
18210-1805 DON 893 1941 3 222 2.5 9.47 13.20 B 182105.96-180447.2
18210-1805 DON 893 2000 4 220 2.8 9.47 13.20 B 182105.96-180447.2

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

 
 
WDS 18210-1805 DON 893 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18210-1805 DON 893 : MEASURES
 
 
No records found.

 
 
WDS 18210-1805 : VIRTUAL EYEPIECE
 
 

18210-1805 DON 893A mag 9.47 Sp B 18210-1805 DON 893B sep 2.8 P.A. 218.30 mag 13.2 virtual eyepiece
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Radius:
Components only
 
 
WDS 18210-1805 : ALADIN DSS IMAGE @ 18h 21m 05.96s -18° 04' 47.2"
 
 
 
 
WDS 18210-1805 DON 893 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18210-1805 DON 893 distance=0' 18212-1800 DON 894 distance=5' 18206-1811 SKF 100 distance=9' 18198-1809 RST3175 distance=21' 18229-1818 J 1629 distance=24' 18195-1754 ARA 277 distance=26' 18188-1804 OL 104 distance=27' 18192-1757 ARA 276 distance=28' 18193-1817 BRT1527 distance=30' 18227-1740 ARA 279 distance=35' 18232-1823 TOB 288 distance=35' 18191-1828 ARA 474 distance=37' 18197-1730 TDT 796 distance=41' 18181-1810 NSN 136 distance=43' 18228-1843 CHR 235 distance=46' 18229-1726 J 2209 distance=47' 18187-1837 BU 300CD distance=47' 18228-1727 J 2210 distance=47' 18187-1837 BU 639AB distance=47' 18187-1837 SHJ 264AB,C distance=47' 18187-1837 FOX 225AB,E distance=47' 18214-1852 EVS 35AB distance=47' 18214-1852 KRV 48AC distance=47' 18214-1852 KRV 48AD distance=47' 18179-1750 TDT 781Aa,Ab distance=48' 18179-1750 ARA 275AB distance=48' 18190-1724 TVB 301 distance=51' 18210-1714 J 1627 distance=51' 18177-1820 ARA 472 distance=52' 18183-1733 J 2206 distance=52' 18180-1834 ARA 473 distance=53' 18223-1856 J 1740AB distance=54' 18223-1856 J 1740AC distance=54' 18241-1735 J 2128 distance=55' 18174-1819 ARA 471 distance=56' 18175-1828 OCC 12Aa,Ab distance=57' 18175-1828 RST3170AB distance=57' 18241-1734 J 2127 distance=57' 18236-1849 ARA 477 distance=57' 18236-1720 KPP2762 distance=58' 18202-1707 TDT 803 distance=60' 18205-1706 TDT 806 distance=60' 18180-1842 HWE 42 distance=60' 18171-1826 ARA 469 distance=61' 18179-1848 BU 299BR distance=63' 18199-1704 SMY9003 distance=63' 18179-1848 BU 299TS distance=63' 18179-1848 BU 299VW distance=64' 18179-1848 SHJ 263AB distance=64' 18179-1848 BU 299AT distance=64' 18179-1848 BU 299AU distance=64' 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 18210-1805 DON 893 220 2.8
Show 18212-1800 DON 894 342 1.2 5
Show 18206-1811 SKF 100 140 3.8 9
Show 18198-1809 RST3175 127 0.6 21
Show 18229-1818 J 1629 82 8.6 24
Show 18195-1754 ARA 277 117 15.1 26
Show 18188-1804 OL 104 213 3.6 27
Show 18192-1757 ARA 276 40 12.6 28
Show 18193-1817 BRT1527 359 5.0 30
Show 18227-1740 ARA 279 339 10.9 35
Show 18232-1823 TOB 288 184 12.6 35
Show 18191-1828 ARA 474 222 12.6 37
Show 18197-1730 TDT 796 93 0.4 41
Show 18181-1810 NSN 136 76 32.9 43
Show 18228-1843 CHR 235 182 0.1 46
Show 18229-1726 J 2209 342 7.4 47
Show 18187-1837 BU 300 CD 329 6.3 47
Show 18228-1727 J 2210 286 8.0 47
Show 18187-1837 BU 639 AB 136 0.5 47
Show 18187-1837 SHJ 264 AB,C 50 17.2 47
Show 18187-1837 FOX 225 AB,E 328 145.6 47
Show 18214-1852 EVS 35 AB 204 10.6 47
Show 18214-1852 KRV 48 AC 157 71.4 47
Show 18214-1852 KRV 48 AD 98 95.0 47
Show 18179-1750 TDT 781 Aa,Ab 130 0.4 48
Show 18179-1750 ARA 275 AB 349 10.4 48
Show 18190-1724 TVB 301 184 7.2 51
Show 18210-1714 J 1627 239 4.9 51
Show 18177-1820 ARA 472 183 14.8 52
Show 18183-1733 J 2206 83 2.3 52
Show 18180-1834 ARA 473 334 14.2 53
Show 18223-1856 J 1740 AB 148 5.4 54
Show 18223-1856 J 1740 AC 178 8.7 54
Show 18241-1735 J 2128 35 3.4 55
Show 18174-1819 ARA 471 54 11.8 56
Show 18175-1828 OCC 12 Aa,Ab -1 0.1 57
Show 18175-1828 RST3170 AB 169 8.6 57
Show 18241-1734 J 2127 48 5.0 57
Show 18236-1849 ARA 477 352 13.9 57
Show 18236-1720 KPP2762 239 3.2 58
Show 18202-1707 TDT 803 195 0.7 60
Show 18205-1706 TDT 806 101 0.5 60
Show 18180-1842 HWE 42 189 21.5 60
Show 18171-1826 ARA 469 355 6.5 61
Show 18179-1848 BU 299 BR 133 10.2 63
Show 18199-1704 SMY9003 134 24.8 63
Show 18179-1848 BU 299 TS 304 7.5 63
Show 18179-1848 BU 299 VW 317 6.8 64
Show 18179-1848 SHJ 263 AB 10 53.7 64
Show 18179-1848 BU 299 AT 21 21.5 64
Show 18179-1848 BU 299 AU 66 28.5 64

 
 
WDS 18210-1805 : COMPONENTS
 
 
  A
B pa=218.3°
sep=2.75"
 
 
18210-1805 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 182105.96-180447.2 Mag 9.47 Spectral class B (blue-white)
PmRA 0.00 PmDE 3.0 Tycho2 6269-01826-1 HD 168553
DM BD-18 4922
Tycho2
Tycho2 6269-01826-1 Pflag RAmdeg 275.27486310 DEmdeg -18.07979491
PmRA 0.3 PmDE 3.0 E RAmdeg 15 E DEmdeg 19
E pmRA 1.5 E pmDE 1.6 EpRAm 1987.82 EpDEm 1986.60
Num 6 Q RAmdeg 1.5 Q DEmdeg 0.6 Q pmRA 1.5
Q pmDE 0.6 BTmag 9.982 E BTmag 0.030 VTmag 9.469
E VTmag 0.027 Prox 895 TYC T HIP
CCDM RAdeg 275.27486361 DEdeg -18.07980083 EpRA 1990 1.80
EpDE 1990 1.80 E RAdeg 16.9 E DEdeg 20.9 Posflg
Corr -0.1
 
 
18210-1805 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182105.84-180449.4 Mag 13.2 Calc delta mag 3.73
Calc coord yes