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Doubles in session


Current system
18169-1734
SKF 98


Nearby doubles
14' : 18160-1736
OCC9064

20' : 18155-1738
ARA 271

20' : 18183-1733
J 2206

22' : 18167-1755
ARA 274

23' : 18179-1750
ARA 275AB

24' : 18152-1738
ARA 270

24' : 18160-1713
ARA 273

31' : 18159-1706
FOX 224

33' : 18190-1724
TVB 301

34' : 18170-1700
ADP 2

34' : 18146-1742
SKF 96

35' : 18171-1700
WSI 143

36' : 18146-1750
ARA 269

38' : 18169-1656
ADP 1

38' : 18172-1656
ADP 3

39' : 18166-1812
ARA 467

39' : 18157-1658
FOX 223

41' : 18181-1810
NSN 136

42' : 18197-1730
TDT 796

42' : 18192-1757
ARA 276

43' : 18195-1754
ARA 277

44' : 18165-1652
HJ 2826AB

44' : 18177-1652
BU 463

45' : 18167-1649
TOB 278AB

47' : 18174-1819
ARA 471

48' : 18146-1808
TDT 759



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

18169-1734 SKF 98

 
 
18h 16m 51.20s -17° 33' 32.1" P.A. 243.00 sep 4.0 mag 7.48,7.17 Sp A2
 
 
Coord 2000 18169-1734 Discov num SKF  98 Comp Coord arcsec 2000 18 16 51.20 -17 33 32.1
Date first 1999 Date last 2015 Obs 3
Pa first 242 Pa last 242.5 P.A. Now (θ) 242.5°
Sep first 3.7 Sep last 4.005 Sep. Now (ρ) 4.005"
Mag pri 7.48 Mag sec 7.17 delta mag (ΔM) 0.31 Spectral class A2 (white)
Pri motion ra +012 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes K (K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius SAO 186584 Gaia DR2 4097255382838649600 DM CD-2814400
 
 
WDS 18169-1734 SKF 98 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
SKF Skiff, B.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18169-1734 SKF 98 2000 1 235 4.1 10.80   181651.20-173332.1
18169-1734 SKF 98 2004 3 242 3.9 10.80   D 181651.20-173332.1
18169-1734 SKF 98 2015 3 243 4.0 7.48 7.17 A2 K 181651.20-173332.1

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

 
 
WDS 18169-1734 SKF 98 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18169-1734 SKF 98 : MEASURES
 
 
No records found.

 
 
WDS 18169-1734 : VIRTUAL EYEPIECE
 
 

18169-1734 SKF 98A mag 7.48 Sp A2 18169-1734 SKF 98B sep 4.0 P.A. 242.50 mag 7.17 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18169-1734 : ALADIN DSS IMAGE @ 18h 16m 51.20s -17° 33' 32.1"
 
 
 
 
WDS 18169-1734 SKF 98 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18169-1734 SKF 98 distance=0' 18160-1736 OCC9064 distance=14' 18155-1738 ARA 271 distance=20' 18183-1733 J 2206 distance=20' 18167-1755 ARA 274 distance=22' 18179-1750 TDT 781Aa,Ab distance=23' 18179-1750 ARA 275AB distance=23' 18152-1738 ARA 270 distance=24' 18160-1713 ARA 273 distance=24' 18159-1706 FOX 224 distance=31' 18190-1724 TVB 301 distance=33' 18170-1700 ADP 2 distance=34' 18146-1742 SKF 96 distance=34' 18171-1700 WSI 143 distance=35' 18146-1750 ARA 269 distance=36' 18169-1656 ADP 1 distance=38' 18172-1656 ADP 3 distance=38' 18166-1812 ARA 467 distance=39' 18157-1658 FOX 223 distance=39' 18181-1810 NSN 136 distance=41' 18197-1730 TDT 796 distance=42' 18192-1757 ARA 276 distance=42' 18195-1754 ARA 277 distance=43' 18165-1652 HJ 2826AB distance=44' 18165-1652 DAM 104AC distance=44' 18165-1652 WFC 290AD distance=44' 18177-1652 BU 463 distance=44' 18167-1649 TOB 278BC distance=45' 18167-1649 TOB 278AB distance=45' 18174-1819 ARA 471 distance=47' 18146-1808 TDT 759 distance=48' 18177-1820 ARA 472 distance=48' 18188-1804 OL 104 distance=49' 18140-1801 TDT 754 distance=50' 18154-1648 HJ 2824 distance=51' 18171-1826 ARA 469 distance=53' 18199-1704 SMY9003 distance=53' 18166-1826 DBR 341 distance=54' 18202-1707 TDT 803 distance=55' 18198-1809 RST3175 distance=55' 18193-1817 BRT1527 distance=55' 18175-1828 OCC 12Aa,Ab distance=55' 18175-1828 RST3170AB distance=55' 18174-1639 TOB 279 distance=56' 18175-1639 TOB 280 distance=56' 18175-1638 HJ 2829AB distance=57' 18175-1638 HJ 2829AC distance=57' 18165-1830 DBR 310 distance=57' 18197-1655 TOB 285 distance=57' 18166-1830 DBR 311 distance=57' 18205-1706 TDT 806 distance=60' 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 18169-1734 SKF 98 243 4.0 0
Show 18160-1736 OCC9064 295 0.0 14
Show 18155-1738 ARA 271 255 8.9 20
Show 18183-1733 J 2206 83 2.3 20
Show 18167-1755 ARA 274 147 10.8 22
Show 18179-1750 TDT 781 Aa,Ab 130 0.4 23
Show 18179-1750 ARA 275 AB 349 10.4 23
Show 18152-1738 ARA 270 333 15.0 24
Show 18160-1713 ARA 273 271 8.7 24
Show 18159-1706 FOX 224 42 6.5 31
Show 18190-1724 TVB 301 184 7.2 33
Show 18170-1700 ADP 2 298 5.3 34
Show 18146-1742 SKF 96 50 3.3 34
Show 18171-1700 WSI 143 75 25.8 35
Show 18146-1750 ARA 269 68 14.6 36
Show 18169-1656 ADP 1 47 4.5 38
Show 18172-1656 ADP 3 180 3.4 38
Show 18166-1812 ARA 467 81 13.6 39
Show 18157-1658 FOX 223 325 5.6 39
Show 18181-1810 NSN 136 76 32.9 41
Show 18197-1730 TDT 796 93 0.4 42
Show 18192-1757 ARA 276 40 12.6 42
Show 18195-1754 ARA 277 117 15.1 43
Show 18165-1652 HJ 2826 AB 257 8.9 44
Show 18165-1652 DAM 104 AC 55 5.5 44
Show 18165-1652 WFC 290 AD 204 5.3 44
Show 18177-1652 BU 463 103 2.0 44
Show 18167-1649 TOB 278 BC 113 17.2 45
Show 18167-1649 TOB 278 AB 108 25.7 45
Show 18174-1819 ARA 471 54 11.8 47
Show 18146-1808 TDT 759 250 1.3 48
Show 18177-1820 ARA 472 183 14.8 48
Show 18188-1804 OL 104 213 3.6 49
Show 18140-1801 TDT 754 91 0.5 50
Show 18154-1648 HJ 2824 74 21.9 51
Show 18171-1826 ARA 469 355 6.5 53
Show 18199-1704 SMY9003 134 24.8 53
Show 18166-1826 DBR 341 311 2.8 54
Show 18202-1707 TDT 803 195 0.7 55
Show 18198-1809 RST3175 127 0.8 55
Show 18193-1817 BRT1527 359 5.0 55
Show 18175-1828 OCC 12 Aa,Ab -1 0.1 55
Show 18175-1828 RST3170 AB 169 8.6 55
Show 18174-1639 TOB 279 194 13.2 56
Show 18175-1639 TOB 280 290 14.9 56
Show 18175-1638 HJ 2829 AB 320 4.9 57
Show 18175-1638 HJ 2829 AC 168 6.2 57
Show 18165-1830 DBR 310 65 2.1 57
Show 18197-1655 TOB 285 194 19.4 57
Show 18166-1830 DBR 311 101 3.1 57
Show 18205-1706 TDT 806 101 0.5 60

 
 
WDS 18169-1734 : COMPONENTS
 
 
  A
B pa=242.5°
sep=4.00"
 
 
18169-1734 A
 
 
Coord arcsec 2000 181651.20-173332.1 Mag 7.48 Spectral class A2 (white) PmRA 12.00
PmDE -3.0 SAO 186584 DM CD-2814400
SAO
SAO 186584 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 0.058 Vmag 9.1 SpType K0
Double code Source 24 CatNum 11816 DM CD-2814400
DMcomp BDsup HD 167577 M HD 0
GC RA1950rad 4.77296062 DE1950rad -0.49374564 PmRA2000 -0.0004
PmDE2000 0.058
 
 
18169-1734 B
 
 
Coord arcsec 2000 181650.95-173333.9 Mag 7.17 Delta magnitude 0.31 Coordinate calculated yes