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Doubles in session


Current system
20181+1605
BKO 561


Nearby doubles
3' : 20182+1604
CHE 291

10' : 20183+1556
CHE 292

10' : 20186+1600
BPM2102

11' : 20181+1555
J 553

13' : 20179+1553
CHE 283

13' : 20181+1552
CHE 289

15' : 20171+1604
CHE 270

15' : 20171+1601
CHE 271

18' : 20187+1551
CHE 297AB

19' : 20172+1553
CHE 273AB

19' : 20186+1548
CHE 295

22' : 20180+1544
CHE 284

22' : 20166+1606
CHE 263

22' : 20166+1603
CHE 264

23' : 20165+1601
BKO 559

23' : 20180+1543
CHE 285

23' : 20193+1619
BPM2108

23' : 20189+1546
CHE 301

24' : 20165+1602
BKO 558

27' : 20177+1539
CHE 278

27' : 20183+1539
CHE 293

29' : 20190+1540
BPM2103

29' : 20168+1543
CHE 266

29' : 20163+1615
CHE 260

30' : 20198+1550
STE 2

31' : 20161+1553
CHE 254AB



Selections
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Binary Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20181+1605 BKO 561

 
 
20h 18m 04.15s +16° 04' 52.2" P.A. 91.00 sep 5.8 mag 10.80,12.00
 
 
Coord 2000 20181+1605 Discov num BKO 561 Comp Coord arcsec 2000 20 18 04.15 +16 04 52.2
Date first 1998 Date last 2016 Obs 9
Pa first 91 Pa last 90.9 P.A. Now (θ) 90.9°
Sep first 5.8 Sep last 5.799 Sep. Now (ρ) 5.799"
Mag pri 10.80 Mag sec 12.00 delta mag (ΔM) 1.2 Spectral class
Pri motion ra +005 Sec motion ra +048
Pri motion dec -006 Sec motion dec -017
Notes N (See Notes)
rPM=0.872
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 1631-00349-1 Gaia DR2 1808468517693629440